ThoughtCo
ThoughtCo is an educational website featuring thousands of articles that explain concepts in history, science, math, language, and more in clear, accessible language. Many pieces are written by subject-matter instructors and updated regularly, making them handy reference points for quick refreshers or deeper background reading. Teens and adults appreciate that explanations feel friendlier than textbooks but more substantial than random blog posts. It’s a good fit for middle school and up, especially when students are researching or stuck on a concept. Because it’s ad-supported, page layouts can be busy; using reader mode or printing key articles can help. Treating it like an online encyclopedia—instead of your only source—keeps research balanced.
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