How to Make a Chemistry Science Fair Project for Middle School

How to Make a Chemistry Science Fair Project for Middle SchoolIf you have ever been to a chemistry science fair, you know that it is one of the more difficult classes you can take at any grade level. The teachers who teach chemistry usually have to think creatively and interactively when working with students because there are so many challenges with chemistry.Kids love science and when they see their teachers as working with and learning from kids, they can't help but get excited. These kinds of science fair projects for middle school are ideal for kids who are going to school in a science class, because if they get their science project done ahead of time, they can have a hard time changing their project later on in the year. What is even better is that this kind of science fair project for middle school allows for a lot of flexibility. You can do whatever you want with your project as long as you are following the rules of the competition.A good project is one that can show what y our students have learned and how you thought about this information. Most of the students will have a particular type of problem to solve or experiment that is really important to them. This problem can be something as simple as whether or not water molecules have opposite charges. This project shows what students have learned in class and how their ideas can make this problem really amazing.When you start to think about doing chemistry projects for middle school, you can find that most of the students aren't going to know much about chemistry. Instead, they will probably be exploring different things like acid, how molecules fold, or what happens when acids react with other chemicals. All of these ideas are great to work with because these are the things that can lead to a science project of a much higher level than most students ever get.The hardest part of doing chemistry projects for middle school students is getting students who know nothing about chemistry to volunteer for a project. That is really hard to do because it takes some creativity and a unique idea for a project. The best way to do this is to ask questions and get students to talk about the topic and how it relates to what they already know about chemistry.When kids get interested in a project, they usually want to work with other kids in the class. This is often a problem, because you need a space where other students can get involved in the process of doing a project.For middle school projects, you need to think creatively about what kind of projects your students can do. Do a project that is related to what they are learning or go out of your way to make sure that you are creative and open-minded. There are a lot of great places to find websites that offer samples of projects from children.

Newsletter December 2012

Newsletter December 2012 TutorZ.com is a nationwide network of tutors. We offer a fast and easy way to find quality tutors at affordable prices. The Christmas is in the air and in this magical time everybody are in a hurry looking for presents, decorations and passing midterm finals. TutorZ is on the watch connecting private tutors and  students seeking tutoring help. December was full of events for us here at TutorZ.com. Our team was reinforced with a new member,  Lilly Kuleshova, who is an active participant of our marketing work now. We have introduced some important technical updates and improved the social share  functionality of our site.  Now ony one click is needed to share a tutors profile in the popular social networks. This option is very useful both for tutors who want to find more students by making their profiles more visible on web search and for students willing to share profiles of their favorit tutors with friends. Another good news is that TutorZ now advertises on Craigslist and all our clients will benefit from the increasing popularity of our site. Find me a tutor Featured Tutors Shefali   New Hyde Park, NY Teaches: Chemistry,  Biology,  Algebra,  History,  Sociology, English,  Creative Writing, GED,  CLEP,  Geography, Meteorology,  Drawing I work in the field of education and my belief is that anyone who wants help deserves help and with patience, effort, and dedication, he or she can achieve his or her goals. Dr. Jenny Williams   Bremerton, WA Teaches: Elementary, Reading, Math, Algebra, Chinese, ESL, Biology, Anatomy, Biochemistry, Chemistry, Psychology, Piano, Flute, Voice Jenny moved to San Diego in December of 2005, and currently works as a tutor, respite worker and volunteers as emergency crisis/incident counselor for the city. Sacha Henderson, NV Teaches: Math, Algebra, Geometry, Statistics, Applied Math, Trigonometry, Elementary, Internet, Computer Basics I am a hard-working, open and intelligent minded individual who has a passion for math and sharing my knowledge and skill with others. Prof. BAM Brentwood, NY Teaches: Math, Science, English, Creative Writing, History, Geography, Physics, Computer Programming, Software Engineering, Web Page, Design, Communication Skills I focus on understanding of concepts and developing the students ability to solve problems rather than tedious drill and memorization. Mr. Kielbasinski   Somerset, PA Teaches:  Astronomy, Geography, Chemistry, Math, Accounting, English,  Proofreading,  Archaeology, Architecture,  Computer Science, Programming,  Project Management,  Sports Im dedicated to help students with disabilities, tutoring and helping others to succeed. Jared La Junta, CO Teaches: Elementary, Study Skills, English, Spelling, Writing, Science, Biology, Zoology, Chemistry, Physics, GED, Term Paper Our mission as a personal tutors is to not only teach the subjects needed but help build a student that knows how to learn. Read with TutorZ Best Articles from our Blog We invite tutors, parents and students to enjoy our articles on some interesting education-related topics: No Pain, No Math! How to Overcome Math Anxiety?    Math is a difficult discipline and many students are struggling while studying it. However, the recent researches revealed even more stressful evidence, for people with high levels of math-anxiety, the fear of solving math tasks activates brain regions which are responsible for pain perception. What can educators and parents do to release students from this pain? Minneapolis â€" a Paragon of Art, Culture and Intellect    Minneapolis is a bustling city which has a diverse mix of business, cultural and educational opportunities. This glittering metropolis offers something for everyone: prominent universities and colleges, thriving theater and art communities, historic museums, well-developed entertainment industry, numerous outdoor sports and activities. No Worries!  I had been out of touch with my good friends at TutorZ for a few years now. It was a great experience working with those guys but, with school ending and my internship ending, it seemed like a good time to move on. Now and again I would regret going separate ways, because the folks that developed and create TutorZ.com were good people and I missed them sometimes An investment in knowledge pays the best interest. ~ Benjamin Franklin Benjamin Franklin (1706 â€" 1790) was a noted American statesman, writer, philosopher, publisher, scientist, and inventor. He is best known as one of the Founding Fathers of the United States, signer of the Declaration of Independence and the United States Constitution. We wish all our clients a Merry Christmas! Stay with TutorZ.com and keep us in mind for your tutoring needs. Sincerely, The Tutorz.com Team Email: contact@tutorz.com Phone: (805) 288-7338

Leapforce

Leapforce Leapforce As a Leapforce At Home independent agent, you will enjoy the freedom and flexibility to choose when and the amount of time you work, allowing you to balance your career, family and friends. Leapforce At Home provides an exciting home-based career opportunity where you can put your acute analytical skills to work, providing valuable feedback and critical insight for some of today's leading companies. Leapforce Leapforce No set hours or schedules. Exciting Research Work. Competitive Pay. Leapforce at Home Agents enjoy competitive pay, have no set work hours or schedules and enjoy the benefits of running their own home-based business. As a Leapforce At Home independent agent you will have the flexibility to schedule your own hours to fit your lifestyle and to work around your career and family demands. You are given complete freedom to choose when and how much you would like to work. Never again will you have to rearrange your personal activities to fit a rigid work schedule. For any given day, you are free to work more or less time. You are in control. All Leapforce At Home independent agents enjoy competitive pay as independent contractors. And there are never any complicated payment schemes or calculations to deal with. Leapforce At Home independent agents conduct in depth internet-based research and provide information evaluation for leading companies from around the globe. Ideal candidates are self-reliant, self-motivated, are very internet savvy, have a broad range of interests and enjoy online research and evaluation.

5 Healthy Four-Ingredient Holiday Appetizers

5 Healthy Four-Ingredient Holiday Appetizers Image via http://bavariablu.ro There’s a preconceived idea that good food, especially food that’s good  for  you, has to cost a fortune and demand as many hours at the stove as it does specialty ingredients. But sometimes, all that you need is four basic ingredients. Considering how busy you are with the daily grind, preparing such a dish should be simple and should also allow you to maintain any dietary needs. Seriously, who says that the perfect holiday treat demands a grocery list as long as Santa’s scroll of names or as sugary as the cookies that you leave for him under the tree? Wow your friends and loved ones at your next holiday function with one of these simple and delicious four-ingredient recipes! Cranberry Pear Parfait Image via http://jessicagavin.com Still have some of that leftover cranberry sauce in the freezer from Thanksgiving? Probably not, but if you do (or just want to go out and buy some) you can simply pair it with organic plain or vanilla yogurt for a delicious treat on its own, or transform the duo into a majestic and glorious holiday parfait. All that you need to do is layer diced pears (Anjou, Bartlett or Bosc pair best with the tart favor of the cranberries) at the bottom of a glass or Mason jar, top with the cranberry yogurt mixture and sprinkle on some granola. This parfait makes a delicious breakfast treat or a quick yet fancy dessert, especially during the holidays when your indulgent gut needs the benefits from the probiotics in the yogurt and the fiber-rich pears. Savory Roasted Pecans This simple hors d’oeuvre pairs well with just about any cocktail or mocktails. All that you do is roast a bag of pecans 12 minutes, then toss them (while still warm) with olive oil, rosemary, and sea salt and just like that you have a fast yet fancy treat that will surprise and delight all of your guests! You can even wrap the roasted pecans in cellophane and tie them with a ribbon or bow for a fast and inexpensive present. Raw Hot Chocolate Hot chocolate is typically correlated with overly sweet cocoa, chewy marshmallows, and artificial whipped cream mustaches. However, this wholesome take on a classic holiday libation is made from either non-dairy or grass-fed milk (depending on your preference), raw cacao powder, maple syrup and sea salt. Simply stir all of those ingredients together while heating them up in a saucepan on the stove. Right before the milk starts to bubble (you want it hot but not boiling), pour the mixture into cozy holiday mugs for a warming after dinner treat! Stuffed Medjool Dates Image via http://15383-presscdn-0-4.pagely.netdna-cdn.com Stuffed dates are always a classic crowd pleaser, but this twist will really have your friends wondering where you picked up your culinary skills. Not to mention that this app takes a whole three minutes to put together. For a healthier take on the conventional cheese-stuffed-dates, try smearing low-fat (or non-dairy almond based) cream cheese on halved Medjool dates and then top with a fresh sprig of rosemary or dill. For an even more surprising twist, balance the sweetness of the date and cream cheeses with a hint of spice via a sliver of jalapeño. Gasp, total game changer. Baked Goat Cheese This is a decadent holiday appetizer that will have your guests lingering around the table until there isn’t any more left to eat! Let’s be honest, who can resist any variation of baked cheese? Certainly not me. For this superstar app, all that you need is a log of goat cheese, a jar of marinara sauce (or a can of diced tomatoes), fresh basil, and salt. You also may want to include some warm baguette or crostini to scoop up the cheesy goodness with, although I can easily consume this with just a spoon. Simply place the cheese in a small baking dish (that you can also use for serving) leaving about an inch of border room around the cheese. Spoon the marinara into the space and covering the edge of the cheeses but not the center. Throw in a dash of salt and bake for 20 minutes at 375 degrees. Once you remove the cheese, sprinkle it with fresh basil and serve immediately.

10 ways to hire better teachers for your international school

10 ways to hire better teachers for your international school Is your school really attracting the best teachers the world has to offer? If you’ve just been through your latest pile of applications and few resumes genuinely excited you, then probably not. As the world's leading international teacher recruitment agency, we're sharing our top tips on raising better awareness of your vacancies and sparking interest from higher calibre candidates. Select, don’t settle. Even if it’s late in the year, hiring average candidates in a hurry will not benefit you or your students long term. Invest time and resources into choosing the best-suited educators who will value their role and have a positive impact on your school and learning community. Extend your reach. Always using the same talent pools and running out of options? Cast your net further and you’ll catch more. This is now possible, thanks to the internet. Take advantage of the enormous people potential of social media by posting regular updates and job alerts. Be competitive. International schools are booming, offering teachers plenty of choices. Reasonable employment packages and provision for dependents makes a real difference when it comes to attracting better applicants. Research what other institutions in your area are offer staff in terms of salary and benefits - they’ll be chasing the brightest candidates too. Knowledge is power. Provide job hunters with plenty of useful details about the role in the job listing, allowing applicants to better judge for themselves whether the position is a good fit for them. Show off your personality. Job postings should be saying more about vacancies than the bare facts and figures. It’s your chance to show your school’s culture, vision, attitudes and values. Consider why teachers want to work in this role, at your school, over another institution in the region? Upgrade your toolkit. Your students are likely using the latest technology - so should you. If your institution has a website (and it needs to!), use it strengthen your brand by providing an insight into day to day life. Consider advertising jobs on external job posting websites and education forums. Think outside the ad. Recognize well-rounded applicants who can meet the demands of an international posting. Keep an open mind. For example, some candidates may have less experience than you’re looking for, but exactly the right kind of experience, attitude and qualifications you’re looking for. Experience never trumps fit. First impressions count. Make sure communication with applicants is clear and responsive from the start of the process - keep candidates informed and engaged. Hiring managers should be transparent about the recruitment process and future terms of employment. Remember your online presence - website and social media - is your public face. Keep content accurate, informative and up to date, no excuses. Be flexible. This is particularly important when the role is a last minute hire. Great teachers won’t stick around for long, so be understanding of challenges such as time zone differences, technical difficulties and availability. Consider a recruitment provider to do the hard work if your time is limited. Break free from tradition. Traditional methods and schedules of teacher recruitment are tried and tested. But with growing global demand for teachers at international schools, and more specialism required, it’s time to enhance old processes with new methods for faster and more efficient recruitment. By implementing these techniques into your current hiring strategy, your school will surely be taking the right direction towards more effective and successful recruitment.

Chemists Should Use Chemistry Subject Test Practice

Chemists Should Use Chemistry Subject Test PracticeChemistry subject test practice tests are becoming increasingly popular as a teaching tool. This is for a variety of reasons, not the least of which is the fact that science can be an exciting subject with limitless possibilities.But don't worry, you don't have to take a test right away. You should begin studying for the exam in your spare time, and not the exact same classes that you will take to pass your chemistry class. In fact, you may want to go back and take some additional chemistry coursework.You can use the subject test practice you have already taken for research. Take it as a template for a future assignment or question. Most of the time, tests will ask similar questions, so you can see how easy it will be to fill in the blanks on this test. The entire purpose of a test is to help you master the skills and concepts that you need to pass.A student taking a test in the first year of study can often be overwhelmed by all the information involved. They don't have time to learn it all and don't even know where to start. The best way to prepare for chemistry subject test practice is to first sit down and figure out which topics you need to learn. Some of the easier concepts include: composition, physical properties, equilibrium, ionic equilibrium, chemical bonding, and water and gas mixtures.If you haven't studied or even heard of the concepts that fall under chemical bonding, then you might want to skip ahead. Chemistry subject test practice will help you answer the questions in the best way possible. It's possible that, because the test is so different from the real thing, you may think about topics that aren't even in your coursework. But you can rest assured that the test isn't giving you answers based on anything but what you've learned.On the other hand, if you're already studying chemistry for the real exam, you'll find that subject test practice helps you to hone your critical thinking skills and give you confidence that you'll be able to pass the test. Answering the same questions over again only serves to reinforce the concepts that you already know. These topics will help you become better at solving problems, so that you will make more accurate predictions about how things will turn out.Now that you know why you should practice on chemistry subject test practice, you can use this information to make sure that you'll do well on the real exam. And don't worry about studying for the real exam!

Astrophysics and Chemistry Education

Astrophysics and Chemistry EducationAstrophysics and Chemistry are not synonymous. In fact, most people who deal with these two sciences as a profession have no idea what Astrophysics is and what Chemistry is. Astrophysics is the study of the universe, and it includes many aspects related to stars, galaxies, and the cosmos. In terms of Chemicals, it is the study of the chemical composition of matter.Astronomy and Astro-chemistry are different fields that scientists have studied since the 18th century. Astronomy concerns itself with the study of stars and their activity. Astro-chemistry has as its sole focus the chemical composition of Earth and how our planet was formed from the elements within the Earth's atmosphere. Many believe that this study could ultimately lead to new, healthier alternative energy sources, and possibly the ability to colonize the moon and Mars.Chemistry can be a relatively easy field to get into, however it is not nearly as popular as Astrophysics or Astronomy . Chemists typically work with molecules and chemicals and how they relate to other elements and the internal processes within the body. However, for many, this subject is at the top of their list for future careers. Chemists in general tend to have a lot of different jobs, from providing cures to dealing with the public.If you are interested in Astrophysics and Chemicals, then you should consider enrolling in an Astrophysics degree program. Before you decide to enroll in one, you may want to consider a course in Chemistry. With this course, you will study all the components of the sun, and how they affect our planet. The course will also cover how our Sun is formed and evolves. You will learn about stellar storms, sunspots, the full solar system, and how they are related to our world.As you graduate from an Astrophysics program, you will most likely enroll in an Ester Chemistry program. You will then be able to specialize in Astrophysics and/or Chemistry, depending on your interest s. At this point, you should take an internship with one of the several companies that have space programs. They will be more than happy to introduce you to their company, which you can then use to build up your skills and expertise in both.At this point, you should take an internship with an Ester Chemistry research laboratory. These labs are often located near universities, and they give you the opportunity to work on real projects that you would normally be expected to attend an Astrophysics or Astronomy class for. This allows you to earn your degree while doing a good job and spending time with the people you love.So if you are interested in studying the relationship between the two subjects, you should enroll in an Ester Chemistry program. If you already have your bachelor's degree, you can pursue your degree in a special program that will allow you to get your Ph.D. When you get your Ph.D., you will become a Master of Science in Astrophysics and Chemistry. If you have found th is article to be helpful, then you will have made a good decision.

What is it Like to Attend Trinity Western University

What is it Like to Attend Trinity Western University The tutors behind Varsity Tutors are not just here to teachtheyre sharing their college experiences as well. Brittany earned her bachelors degree in theatre from Trinity Western University in 2013. She specializes in math tutoring, SAT tutoring, and a number of other areas. Below, she shared her experience as a student at Trinity Western University. Read on! Describe the campus setting and transportation options. Brittany: Trinity Western University is located in a very beautiful, rural area. Its tucked away from the city and, although transport trains come through campus frequently, it is quite peaceful. Its easy to get to malls and grocery stores by car or by transit, as theres a bus station at the entrance of campus. Its a very safe, tranquil community. How available are the professors, academic advisers, and teaching assistants? Brittany: Professors at Trinity are extremely involved and available for the students. Part of the orientation process includes dinner and games at a professor or staff members home. I believe its something that really sets the university apart from other programs, because you know that the people teaching you are investing in helping you grow and succeed. How would you describe the dorm liferooms, dining options, location, socialization opportunities with other students? Brittany: I lived in dorms my first year and I found that it was a bit of a hit or miss. Some people thrive in dorms. Since I was a theatre major, however, I wasnt able to participate in a whole lot of the social aspects of dorm life. I think dorm life has improved since I graduated, due to feedback from the students and renovations on living spaces. That said, dining options are extremely limited due to the small size of the university, and cafeteria prices are pretty high for the average student. I preferred to grocery shop and utilize the fridge and kitchen in my dorm as much as possible when I lived on campus. Which majors/programs are best represented and supported? Brittany: The majors you will encounter the most at TWU are Human Kinetics and Business. Trinity has an excellent athletic program and our athletes are some of the best in Canada, with all of our teams having long histories of CIS gold, silver, and bronze. They draw and recruit a number of athletes every year. I, myself, studied Theatre, which is a much smaller program when compared to the size of the university, but just as prestigious. I looked at several schools when considering a degree in Theatre, but ultimately chose TWU because of its prestigious faculty and open classes (i.e. you dont have to audition for an exclusive program to be able to take acting classes). How easy or difficult was it for you to meet people and make friends as a freshman? Does Greek life play a significant role in the campus social life? Brittany: I had an extremely easy time meeting people and making friends freshman year because I was elected to student government. There are a huge number of community life activities that allow and encourage the development of relationships between students, but you really have to be willing to invest in them to see results. A lot of commuters struggle to feel connected with other students despite commuter hangouts and integration activities. Theres no Greek program at TWU. How helpful is the Career Centerand other student support services? Brittany: Because I chose a career thats alternative to the normal system of seeking employment, I didnt really utilize the Career Center, but Ive heard great things! TWU has a huge job fair every year and I know business students have an extremely high rate of employment upon graduation. The Career Center is also really helpful with assisting students in finding employment while they are attending school, and with creating and editing resumes. How are the various study areas such aslibraries, the student union, and dorm lounges? Brittany: There are a ton of really great places to study on campus. No matter the environment you thrive in, youll find it represented at TWU. The library and dorms have study rooms for working in groups, or individual, compartmentalized desks for individual work. There are tons of lounges and couches in the atrium if you prefer a more socialized, laid-back environment. Or, you can always just pick a nice shady tree outside to work under. Describe the surrounding town. Brittany: If you like a small town, rural feel, youll be right at home in Langley. If youre more of a city person (like myself), Vancouver is 30-45 minutes away depending on if you drive or transit, and there is certainly no shortage of activities there. From hikes and beaches to museums and nightlife, its really the city for every type of person. While some people would choose to live and attend school in Vancouver, Langley is a lot more quiet and affordable if you prefer not to live in the hustle and bustle. How big or small is the student body? Were you generally pleased or displeased with the typical class sizes? Brittany: TWU is a pretty small school. Its a private, Christian university with small class sizes and a lot of one-on-one instruction. I was really pleased by the quality of my education and the thought and care that nearly every instructor put into their classes. I feel like the university as a whole is the perfect size to feel connected and invested in, while having enough variety and wealth of varying beliefs and viewpoints to feel challenged and able to grow. Describe one memorable experience with a professor and/or class. Perhaps one you loved the most or one youregretthe most. Brittany: My first year was wonderful and incredibly challenging at the same time. I loved my program and student government, and I made a lot of friends; however, I was also struggling with a lot of personal issues that interfered with my education and dorm life. I ended up investing in counseling and therapy with a counselor on campus who negotiated some academic extensions for me. Some professors were hesitant but allowed it based on university policy; however, one professor was incredible. My English teacher, Vic Cavalli, was compassionate and understanding and allowed me not only the extra couple of weeks most professors offered, but rather two months into the summer to complete my assignments. While I barely scraped by in a couple of classes, he allowed me to heal and recover so that I could complete the assignments to my full potential and get the grade that I deserved. I will never forget his kindness. Check out Brittanys tutoring profile. The views expressed in this article do not necessarily represent the views of Varsity Tutors.

Tips for Video Admissions Interviews

Tips for Video Admissions Interviews Congratulations on landing yourself a video admissions interview! Thanks to technology, university officials and students hundreds of miles apart can be brought together to discuss a prospective college. While there are certainly benefits to virtual interviews, they do not come without their own brand of quirks. Here are some pointers to make the best of your video admissions interview: 1. Make sure your internet connection is stable Perhaps the most important factor in a video admissions interview is ensuring you have a stable internet connection. Without a stable connection where interviewers can see and hear you properly, your preparation, credentials, and enthusiasm could all be overshadowed. [RELATED: What NOT to Discuss During a College Interview] Before your admissions interview, find out which areas in your house (or wherever you plan to perform the interview from) have the strongest signal. You can do this by wandering around with a laptop and looking at the number of signal bars, or by video chatting a friend and asking where the connection is most consistent. Maybe the best place for your video admissions interview is not your own house but a cousins or friends house. If your home does not get a strong internet signal, consider holding the interview elsewhere; you could reserve a private room in a library or other community building, for instance. 2. Be aware of your surroundings When you are accustomed to seeing something every day whether it is a band poster in your room or a stain on the wall in your kitchen its easy to forget that it may be unsightly to a new eye. Take a look from the interviewers perspective before settling on a spot to hold your interview; think about how the interview environment will look from his or her point of view. Most platforms for video chatting have a test function that allows you to see yourself on screen, so take advantage of this feature; do not just guess which parts of the room will end up on screen. Again, you could also video chat with a friend to ask him or her for feedback on the rooms appearance behind you. The background for your video admissions interview should be professional, tidy, and plain. Clean up any piles of clothes, papers, or garbage that might be visible to the interviewer. Also, ensure there is nothing behind you that the interviewer could find distracting, such as noisy patterns, large print signs, or even free-roaming pets. You want the interviewer to be solely focused on you and what you have to offer. 3. Still dress to impress Since you might be doing your video admissions interview from home, you may be tempted to dress comfortably and keep a snack or cup of coffee within arms reach. However, the video admissions interview should be held in the same regard as any other interview, where your goal is to impress. Dress in semi-formal attire and make sure you are as well-groomed and presentable as you would be for any other interview. Its acceptable to have a water bottle nearby since you will be talking a lot, but any other drink or food item (soda, chips, etc.) is not recommended. Most importantly, turn off your cell phone! If you keep your phone on and within sight, you could be tempted to look at it. Ringtones and vibrations can be easily heard through video chat, so save yourself the embarrassment. Just hit the power or silence button; your texts and calls can wait. [RELATED: 3 Things You Must Do After an Admissions Interview] Video admissions interviews deserve as much attention as classic in-person interviews. However, the complications that may arise are a bit different. By taking care of the technological and visual components of the process, you will be on your way to a successful video admissions interview. Any topics you want to know more about? Let us know! The Varsity Tutors Blog editors love hearing your feedback and opinions. Feel free to email us at blog@varsitytutors.com.