Testimonials

See the opinions of students and educators just like you. Select from the following to learn more.

CK-12 Helps to Address Learning Gaps
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CK-12 Helps to Address Learning Gaps
CK-12 Offers Material Unavailable By Traditional Publishers
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CK-12 Offers Material Unavailable By Traditional Publishers
Every time I open CK-12 There Is Something New and Engaging
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Every time I open CK-12 There Is Something New and Engaging
Start Small or Dive Right In with CK-12
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Start Small or Dive Right In with CK-12
CK-12 FlexBooks® as Primary Resource in Algebra One Class
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CK-12 FlexBooks® as Primary Resource in Algebra One Class
Continue Learning After the Lesson is Over with CK-12
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Continue Learning After the Lesson is Over with CK-12
CK-12's Adaptive Practice Allows You to Identify Where Each Students' Gaps Are
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CK-12's Adaptive Practice Allows You to Identify Where Each Students' Gaps Are
Confidence in Connecting to Standards with CK-12
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Confidence in Connecting to Standards with CK-12
Easy to Update and Modernize Content with CK-12
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Easy to Update and Modernize Content with CK-12
Illustrations Come to Life with CK-12
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Illustrations Come to Life with CK-12
Easily Share Content with other Districts and Teachers with CK-12
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Easily Share Content with other Districts and Teachers with CK-12
CK-12 Has Revolutionized How I Teach
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CK-12 Has Revolutionized How I Teach

Comments from Educators

I'm just starting to use it. It looks agreat resource for me especially being a new teacher.

Abdirashid A.

Comments from Students

science was hard now it is easy thanks

Juan

I liked this website. It helped me a lot with my work

Jozabad S.

It has helped me want to do school every day!

Joy B.

it helped a lot through school learned lots and tons of stuff

Jose S.

Ck-12 Has helped me learn some really interesting new stuff I haven't learned. It helps students learn and also teachers. It provides the information that I look for.

Jose R.

Ck12 has helped me understand math concepts to science genetics and i can't express how much its help me on my education pursuit.

Jose R.

CK-12 has helped me pass chemistry, also hi.

Jose M.

It helped me learn new things i never thought i would have learned before.

Jonathan L.

Happy 10th anniversary! cK-12 has helped me learn so much, from science to social studies, and everywhere in between. Keep up the good work!

Jonathan G.

It's a relatively decent website that I find myself using usually.

John S.