Khan Academy vs OpenSciEd

Khan Academy is a free learning platform for independent learners, teachers and parents, available on Android, iOS and the web. It offers more than 840 free courses in core academic subjects for K–12 and early college, with personalized learning intended to help students master concepts and address learning gaps. The mobile app includes interactive exercises, mastery levels, synced progress, offline video downloads and a scratchpad. Khan Academy Kids is a free, ad-free app for children ages 2–8 with interactive books, games and creative lessons. Khanmigo tutoring guides learners toward answers across academic subjects from elementary school through college. Teacher tools can assist with lesson planning, feedback, student work summaries, rubrics and exit tickets; Khan Academy for Teachers also includes standards-aligned practice, progress tracking and AI support. Teachers can import Google Classroom rosters, while district plans list Clever or ClassLink rostering and single sign-on. Paid Khanmigo subscriptions require users to be at least 18, live in the United States and have a U.S. billing address. Parent and learner subscriptions each cost $4 a month.

OpenSciEd creates free science curriculum materials and professional learning resources for educators, with NGSS alignment across elementary, middle and high school. Its lessons center on scientific phenomena and student questioning, investigation and problem-solving; teachers are encouraged to adapt them. Released units can be downloaded as PDFs, Google Drive files, Word documents or PowerPoint files, and some are available in Google Classroom or Canvas versions. Free self-guided learning paths and an on-demand support library provide videos and resources for unit preparation, classroom routines and anticipating student ideas. Registration is required to access the materials and is intended for educators or parents, not K–12 students. Middle school materials use CC BY 4.0; elementary and high school materials use CC-BY-NC licensing, with noncommercial 5R permissions free and perpetual. OpenSciEd High School offers three NGSS courses. The organization describes itself as an independent nonprofit, and the website is listed for web access.