Testimonials

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

Use CK-12 FlexBooks® to Replace Traditional Textbooks
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Use CK-12 FlexBooks® to Replace Traditional Textbooks
Creating Teams to Make CK-12 FlexBooks®
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Creating Teams to Make CK-12 FlexBooks®
Many Reasons to Use CK-12 FlexBooks®
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Many Reasons to Use CK-12 FlexBooks®
Translate FlexBooks® with just One Click!
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Translate FlexBooks® with just One Click!
The Power of CK-12's Highlighting Tool and Word Definitions
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The Power of CK-12's Highlighting Tool and Word Definitions
Finding the Right People to Pilot CK-12 FlexBooks®
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Finding the Right People to Pilot CK-12 FlexBooks®
Curating CK-12 FlexBooks® for Relevance and Engagement
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Curating CK-12 FlexBooks® for Relevance and Engagement
Incorporating Current Events into a CK-12 FlexBook® the Next Day
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Incorporating Current Events into a CK-12 FlexBook® the Next Day
CK-12 is the High Quality Online Resource Teachers and Students Can Trust
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CK-12 is the High Quality Online Resource Teachers and Students Can Trust
Talk to the Text with CK-12's Highlighting Tool
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Talk to the Text with CK-12's Highlighting Tool
El Paso Bought Laptops and Still Saved Money with CK-12!
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El Paso Bought Laptops and Still Saved Money with CK-12!
Upgrade, Update, and Customize with CK-12
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Upgrade, Update, and Customize with CK-12

Comments from Educators

I am a special education teacher, I use information to help kids understand concepts in the biology class.

Jason W.

It has helped me support my students with on so many levels.

Jason P.

CK-12 has become a weekly extension activity for my middle school science students.

Jason B.

classroom assignments for Night by Elie Weisel

Janet R.

You have flex books which have been a great tool for my students to read and watch videoclips on Ecology. I look forward to using your flex books on Evolution.

Janet G.

Provides plenty of well structured lessons

Janet

CK12 is a fantastic FREE resource that is comprehensive and engaging. I want my students to learn to look up information and use Internet resources and CK12 provides the opportunity for them to look things up without my help. The readings are clear and I

Jan

The plix and other resources have been very helpful in allowing me to address different types of learners.

James S.

I am using CK-12 in both my chemistry and physics classes this year which is my 37th year in teaching. When I tell people I use CK12 to make customizable free electronic textbooks, people are very surprised that it is possible.

James P.

What a great resource. The flex books are excellent by themselves , but with the ability to edit them, they are fantastic. I especially appreciate the differentiated levels of the flex books. I use the middle school book for my 8th grade prep students

James G.

Comments from Students

cK-12 has helped me understand more about my biology class. It provides my teacher easier ways to do fun and competitive quiz's.It provides a bundle of notes that are very easy to access and you can make your own highlighting marks and notes. Thanks!!

Arianna V.

I haven't been on here yet but my teacher showed me today and it lokks pretty cool and its very fun we did a quiz on seasons

Arianna

cK-12 is helping me the pass my FTCE test, which i want to take next month.I don't have the money to buy the book, so i am greatful for the help,

Ann M.

Helped me become a faster & well skilled learner.

Andy R.

cK-12 has been of immense help to me. I used to satisfy my hunger for knowledge through books only. One day I came across this wonderful app which has pacified my hunger. Thank you!

Ankit C.

ck-12 helped me by supporting myself and for trying my best

Anjel B.

Ck-12 has always been my study buddy. I like the fact that there is more than one way to learn about something rather than sticking to a typical lecture or textbook. It lets me explore new concepts.

Anjali

It gives me information to help with classwork and homework.

Aniyah

it has helped me by giving me good answer advice

Aniyah

it help me with science and helped me get my grade up by teaching me my lesson and letting me look over the words just like quizlet

Aniya S.