This resource deserves it's own email, it's got so much potential and just keeps getting better.
ck-12.org is an amazing resource that just keeps getting better. They now have a great app too! Download it here.
Their new free apps for both iOS and Android devices offer 100,000+ practice problems anytime, anywhere! Best part: it adapts to the student's skill level, so it will keep them engaged. And yes, it's free.
100,000+ free digital textbooks - you choose!
Wondering what other schools in your state are using CK-12 FlexBooks®? You can now browse from our collection of free Common Core and state standards aligned books to download, or customize one to make your own!
There are a few Nebraska Teachers that have shared their flex books for you to see too.
It's still targeted for the Math and Science areas, Grades 1-12 as shown from their main screen: