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

Congratulations on your 10th anniversary

Freddie

Great resources

Fred

this website made reading easy to access

Francisco V.

I love ck 12

Focilia

with school

France R.

Excellent resource for students struggling with homework.

Flor

very helpful

Filden

By providing resources for discussion with my graduate students.

Fernando E.

The website is great and rich; wonderful resources. My students demand work from the platform and they love the adaptive practice and quizzes. Thank you.

Felix B.

I have used the lessons to help my ELL's, for introducing lessons, for tutoring, and for enriching my lessons. Thank you!!!

Fernanda S.

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.