SITRID Knowledge Base

We've put together a collection of the best verified educative and fun websites to help you with homework, learning and all you need to know to keep you at the top of your class.

Khan Academy

The Khan Academy is the gold standard for virtual lessons in the STEM subjects for all ages, and is officially recognized by the College Board SAT study site.


Duolingo’s language learning app has 300 million users worldwide and offers more than 20 languages. Using “gamification,” it teaches children with games and quizzes and offers rewards, new levels, and new skills that are unlocked through a learning tree that adapts to a user’s ability.

PBS Kids

Each of the educational shows your children watch on PBS has its own section on Find sing-a-long songs, sorting and counting games, bonus videos, and more.

Livechat Typing Speed Test

A free, nifty way to test — and improve — your typing speed and accuracy. Hey, you may even learn how to properly type if you've never been taught.

How to Make a Website

You'll learn how to choose a website building platform, choose a domain and host, set up, design and tweak your website

How Products Are Made

How Products Are Made explains and details the manufacturing process of a wide variety of products, from daily household items to complicated electronic equipment and heavy machinery.


The vastly popular site is known to be most used for finding the most affordable textbooks and digital books, both for purchasing and for rent. However, also offers course reviews, 24/7 study and homework help, and even free scholarships.

24hour answers

Students have the capability of logging in and submitting assignment requests for any specific subject whenever they want, at any hour of any day. The company also offers technical support, hardware support, and software configuration or installation.


Under the creative direction of Jeff Kinney, author of Diary of a Wimpy Kid, Poptropica® is a virtual world in which kids explore and play in complete safety. Every month, millions of kids from around the world are entertained and informed by Poptropica's engaging quests, stories, and games.

National Geographic Kids

The world-famous National Geographic hosts over 100 fun, engaging, and interactive science, action, adventure, geography, quiz, and puzzle games.


Funbrain, created for kids ages preschool through grade 8, offers more than 100 fun, interactive games that develop skills in math, reading, and literacy. Plus, kids can read a variety of popular books and comics on the site, including Diary of a Wimpy Kid, Amelia Writes Again, and Brewster Rocket.