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

it helped me on a lot of stuff

Christianna

Great science content! Lots of resources; video, text, quizzes. Love the connectivity to Edmodo. Very helpful!

Christiana D.

ck12 has helped me by teaching me new things in algebra and learning more and more about daily math life

Christian D.

I first used the CK12.org webpage in conjunction with traditional style biology ibook four years ago after going to a technology training. Now I have open sourced a regular biology Flexboook and an honors Flexbook for use by our entire school and embedded

Chris J.

So fun for students. Used the Natural Selection mouse interactive as a Do Now, so great.

Cheryl

our lessons make my job so much easier. I can count on quality lessons from you and can use them to meet student accommodations. Thank you.

Chris E.

I can find problems that suitable for my grade 8 son.

Cherry P.

it was a good educational website

Chelsea

Wonderful simulations to enhance student understanding AND they work on the student iPads!

Chauncey H.

it help my student to have a better understanding on the specifc topic in the class discusion.

Charlin

Comments from Students

I am a high school biology and chemistry teacher. I assign ck-12 as a resource for students who struggle with concepts. I love the Real Life articles. The students get to understand why science is important. Thank you

Laura S.

With our "bring your own device" initiative, our corporation no longer buys textbooks. Thank you for giving me a way to still provide my students a way to have a good information source they can continually turn to.

Laura

Provided an integrated learning platform that permits me to choose the portions of your texts that fit my classes. One of my courses has been redesigned around ck-12 materials!

Larry K.

CK-12 has helped me positively impact student achievement in my classroom! I have found numerous problems that I have used with my students, discovered ways to improve my instruction, and developed a clearer understanding of how to target my instruction and interventions!

Kurt H.

I have only recently discovered this wonderful site. I am using it as an actual teaching resource, whereby I use it to flip my class. So students will work through the content at home, regroup in class to discuss topics and issues and then they write the

Kyle

really helpful for my children

Kumudini

I am homeschooling my 8th grader for the last trimester. I am looking for things to make his education complete and fun.

Kristy D.

CK12 works well with our 1-1 ipad program in our middle school. Students carry their work and flex books around in one small device! Yea, for saving their little spinal cords!

Kristin D.

cK12 has helped me immensely with book resources for my students. Now they get to read smaller sections and not be so encumbered with such large science textbooks. The practice is becoming a very valuable tool with my students as well.

Kristin

made it easier to teach lessons

Kristen J.