Testimonials

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

It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
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It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
CK-12 Digital FlexBooks® Allow You to Customize Curriculum
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CK-12 Digital FlexBooks® Allow You to Customize Curriculum
CK-12 Helps Student Go Deeper with Learning
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CK-12 Helps Student Go Deeper with Learning
CK-12's Flexibility and Accessibility
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CK-12's Flexibility and Accessibility
The Impact of CK-12 Simulations is Huge
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The Impact of CK-12 Simulations is Huge
CK-12's Mission Drove EPISD to Share Materials with Others
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CK-12's Mission Drove EPISD to Share Materials with Others
The Innovation of CK-12
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The Innovation of CK-12
It's "Very Easy" to Create CK-12 FlexBooks®
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It's "Very Easy" to Create CK-12 FlexBooks®
CK-12 Keeps Lesson Planning Process On-Track
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CK-12 Keeps Lesson Planning Process On-Track
CK-12 Makes Differentiated Learning Come to Life
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CK-12 Makes Differentiated Learning Come to Life
Using CK-12's Platform to Deliver Instruction on Devices
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Using CK-12's Platform to Deliver Instruction on Devices
Personalized Learning with CK-12
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Personalized Learning with CK-12

Comments from Educators

This website has helped to design a customized website that addresses the specific content my students are covering.

Colleen K.

I am an elementary school teacher and this learning center has advanced my students so much. It is very helpful in the curriculum and overall is a great brain trainer for students k-12

Cindy M.

CK12 provides standards aligned digital text books, videos and activities I use while teaching.

Cindy E.

Excellent exercises and resources! Congratulations!

Cielo

Thanks for making your lessons available! It helps a lot as a supplement of my lesson.

Cicelia A.

It has helped me explain, through problems and text, basic concepts to my students.

Chuck N.

Awesome resource!!! Keep it free!! Keep up the excellent work!!

Christopher S.

I am so pleased with CK-12. The information is so great for all learning styles and types. The variability of the site allows for differentiation and diversity of learning. Thank you for everything thtat you have done and will do for my students.

Christopher M.

K-12 is still a new educational system here in the Philippines and its effectivity leads me to seek reliable resources and materials. And, indeed, CK-12 has answered my needs as an educator. Cheers, CK-12!

Christine

I have greatly appreciated the flex books and the connected practice sets! Those practice sets have been great help to my students that need just a little more time with material, and it saves me time from having to create more material resources myself!

Christine

Comments from Students

I have chronic pain that doesn't allow me to go to school. I had a really hard time homeschooling until I found this website. CK-12 has helped me to be able to get an education until I am able to go back to school. Thank you.

Tya

CK-12 has helped me a lot. It has helped me understand certain subjects in science and much more. In my opinion CK-12 is one of the best educational websites there is.

Louis A.

Our school just gave each student a chromebook, making us 1:1 school. Only 1 of 2 in our district. Our school is Title one with many obstacles to overcome.

Trish P.

CK-12 has helped me with a lot of things such as science, reading, math and social studies. I like using CK-12 because it is extremely useful and I suggest you to try it out also.

Trinity

it had helped me learn things that i didn`t know in a way i can understand.

Trinity J.

You guys made it so i don't have to carry around an ungodly amount of textbooks. Thx.

Tanner W.

It has helped me get a better understanding on certain subjects.

Tanner M.

I don't understand why it works like this but, it is amazing so I like it but, I think it shouldn't have a login for the students the teachers should only have a login. I love this website it helps me with my learning a lot so, thank you and have a good y

Taniya H.

I love how I can go on here and see any information that I might need for a project pr lesson

Sunya A.

They helped me learn more about dividing fractions.

Susana C.