CK-12 is a deeply interactive and intelligent K-12 learning platform that's free for everyone.
We let students learn in their own way, whether by reading, watching videos, exploring interactive simulations, or answering personalized practice questions. We empower educators with fully customizable digital textbooks and smart insights about their students. We give parents peace of mind through lessons that are well-organized, standards-aligned, and easy to monitor.
We've helped over 120 million people since 2012, both in-school and homeschool. Today, we're helping parents, students, and teachers transition to remote learning as easily as possible:
We've hand-picked the most popular math and science lessons at this time of year and made them easy for anyone to learn and share
We have resources in multiple languages, including Spanish and Portuguese, and our lessons can be translated into any language directly on our platform
We host live webinars every week to help you get the most out of our best resources
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