Parent reviews for CK-12

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Common Sense says

age 10+

Based on our expert review

Parents say

age 9+

Based on 4 reviews

Kids say

age 14+

Based on 13 reviews

age 13+

It ok, but there is better

Ok, can get very frustrating as to complete a assignment, you need 100 perfectness right or 10/10. Even a 9/10 is a restart the whole practice.
age 7+

Easy to use

I’m brushing up on my math skills in preparation for some college classes.
age 10+
age 6+

CK-12 - Digital curriculum at its best

CK-12.org is a great resource for everything from full textbook-like curriculum (called FlexBooks) to individual multi-modal learning resources such as videos, digital interactives, and simulations.