The iDevBooks math apps are used by parents, schools, and students worldwide. They are also very popular in special education as assistive technology tools.
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Website Directory
Browse the sites publishing on a subject, by topic and category
4Algebra is a search engine built for algebra learners, teachers, and professionals. It combines multiple indexes, algorithmic ranking, and AI assistance to surface targeted resources: tutorials, proofs, problem sets, software, products, and community discussions. Use the home page to start broad searches, explore curated categories, or jump to specialized web, news, shopping, and chat features.