Learn more than 5000 mathematical and scientific concepts at your own pace and in your own style!
The mathematical subjects of CK-12 include: Arithmetic, Measurement, Algebra, Geometry, Probability, Statistics, Trigonometry, Analysis and Calculus
Scientific subjects include: Earth Sciences, Life Sciences, Physics, Biology, Chemistry and Physics
Other subjects include: SAT Exam Preparation, Engineering, Technology, Astronomy, English and History
Features of CK-12:
* Supports common base and government standards for consistent content (digital tutorials and concepts).
* View, learn and practice (or teach) more than 5000+ concepts using several modalities (text, videos, quizzes, cards, etc.).
Manage your class online through groups.
* Create a practice for students and track their progress.
* Everything on our application and website is always 100% free.
Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!
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