CalculatorSoup is a free online website offering a large collection of calculators and conversion tools across many subjects, including math, finance, time & date, statistics, physics, and more. Users can use these interactive calculators in their browser for quick problem‑solving, from basic arithmetic to loans, percentages, and conversions.

School Yourself is an online learning platform focused on teaching mathematics through interactive and personalized lessons. It offers step-by-step courses in subjects like algebra and geometry, using adaptive technology that adjusts to each learner’s progress and provides immediate feedback. Designed to simulate one-on-one tutoring, the platform helps students better understand concepts at their own pace and makes learning math more engaging and effective.

Daily Grammar is a free online resource offering hundreds of easy‑to‑follow grammar lessons and quizzes. It breaks English grammar down into clear topics, like parts of speech, sentence structure, punctuation, and mechanics. With Daily Grammar students can study at their own pace and improve their writing skills.

National Geographic Kids is a free online platform with fun and educational content for children. It features articles, videos, games, and activities about animals, science, geography, and the natural world to make learning exciting.

Mystery Science is an online educational platform designed to help elementary students learn science in a fun and engaging way. It offers ready-to-use video lessons, mini-lessons, and hands-on activities that encourage curiosity and critical thinking. The content is aligned with academic standards and is easy for teachers to use, making science learning accessible even without extensive preparation.

World Geography Games is an educational platform that offers fun and interactive games to help learners of all ages explore and practice geography skills. It features quizzes and activities on countries, capitals, flags, continents, and other geographic topics, making learning about the world engaging and enjoyable.

The website vincentvangogh.org is an educational online resource dedicated to the life and works of Vincent van Gogh. It provides a wide collection of information, including analyses of his most famous paintings, details about his artistic style, and insights into his personal life and legacy. The site serves as a helpful platform for students, art enthusiasts, and researchers who want to explore and better understand one of the most influential figures in art history.

Khan Academy is a free online learning platform that offers lessons in subjects like math, science, history, and more. It provides videos, practice exercises, and quizzes to help students learn at their own pace.

CK-12 is a free online learning platform that offers digital textbooks, videos, and interactive exercises for K-12 students. It covers subjects like math, science, and engineering, allowing students to learn at their own pace and explore topics in depth.

The website Generation Genius is an online educational platform designed to support K–8 students and teachers in learning science and math. It offers engaging video lessons combined with interactive resources such as quizzes, reading materials, and hands-on activities that make learning more enjoyable and effective. The content is aligned with academic standards and is widely used in schools to help simplify complex concepts and enhance classroom instruction.

Crash Course website is an online educational platform that provides engaging video-based lessons on a wide range of subjects, including science, history, literature, and more. It is known for its fast-paced and easy-to-understand content, designed to simplify complex topics for students and independent learners. With courses that support both classroom learning and self-study, the platform makes education more accessible, interactive, and enjoyable for a global audience.

ScratchJr at scratchjr.org is a free online platform that introduces young children (around ages 5–7) to basic coding through simple, visual “block” programming. Kids can create their own interactive stories, games, and animations by snapping colorful blocks together, helping them build early problem‑solving and logical thinking skills in a fun, creative way.

Core Knowledge website’s Download Free Curriculum page is an online resource that provides free, high-quality educational materials for students from preschool through grade 8. Developed by the Core Knowledge Foundation, the site offers complete curriculum units in subjects such as language arts, science, history, and geography, along with teacher guides and student resources. These materials are designed to build strong foundational knowledge and are available for anyone to download, use, and adapt for learning or teaching purposes.