Testimonials

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

How to Use CK-12 to Support Struggling Readers
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How to Use CK-12 to Support Struggling Readers
CK-12 Has Engaging and Interactive Content
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CK-12 Has Engaging and Interactive Content
Worry-Free Content Curation with CK-12
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Worry-Free Content Curation with CK-12
Starting with a CK-12 FlexBook® and Curating as You Go
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Starting with a CK-12 FlexBook® and Curating as You Go
EPISD Saw Results After One Year of CK-12 FlexBooks®
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EPISD Saw Results After One Year of CK-12 FlexBooks®
Pick Up Where You Left Off with CK-12 FlexBooks®
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Pick Up Where You Left Off with CK-12 FlexBooks®
"Dude, Just Use Your Phone" on CK-12!
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"Dude, Just Use Your Phone" on CK-12!
CK-12 is Adjustable to Each Student's Level of Learning
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CK-12 is Adjustable to Each Student's Level of Learning

Comments from Educators

Identify resources staff can use to develop relevant science curriculum

Brian A.

My students love CK-12's Braingenie, and I do too. This is my 2nd year using Braingenie, and I have helped several other teachers become acquainted with it too. I especially love that I can create the goals for my students and then track their progress through the reports.

Denise T.

Provides revision.

Gabriella R.

Thank you for helping me home school.

Anel

Great resource for students and teachers

Dawn R.

I'm a first year teacher in an impoverished school district. Having virtual tools is the best way to close the achievement gap between my district and well-funded schools. Thank you!

Barbara F.

very helpful

Filden

lesson plan for the topic mendel's law of inheritance

Eric C.

It is a extremely propitious and handy website.It helped me a lot for giving a finishing touch for my examination.

Bhawesh K.

I love to use ck12 on and off campus. and i love all the free resources

Cooper L.

Excellent resource for students struggling with homework.

Flor

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

Chauncey H.

I love the webinars; they helped me get my classes set up in ck-12 and helped me create my own textbook. Although I publish my own workbook I often assign extra practice for the students on ck-12.

Deb M.

Thanks to CK12.ORG, my students enjoy the assignments and the activities created by ck12. Thank you.

Anna M.

Providing great resources for my homeschooling needs

Jenny

cK-12 helps my students learn Life Science because the lessons are structured in just the right format, with much available in the form of support and resources. Thank you cK12!

Jose A

CK-12 has provided resources so that I can be a more effective teacher!!

Lydia C.

I use your lessons as homelearning activities

Lianett H.

Comments from Students

Made me happy

Pau La

CK-12 has helped me by letting me learn about science and helping me with my work at school. If I didn't have this web site I never could of learned what I need to learn about the science.

Tam

Learning Algebra

Elizabeth

By providing free books on mobile phones

Aadil

They held me with my language arts so happy to h ave them with me yay!!!

Ralica

CK-12 has helped me allot in my grades i told my friends about this site they liked it and good marks because of u Ck-12 thank you.

Imad

I am terrible at math. And with cK-12 you make it a little easier to understand for me. So thank you for that!

Gabrielle E

my teacher uses it in class

Taniya Keener

CK12 is the best online learning source ever.

Mason Ramos

i loveeeeeeeeeeeeeeeeeeeeeeeeeeeeee ck-12 so much too bad i cant use it in high school next year

Latina Harris

It helped me help people and help the world! yayy!!!!!

Lam Vo

I love this website

Camya Boone

You guys helped me understand my material, Mostly Science, and helped me finish my tests with a fair amount of ease.

Idris Donovan Anderson

This has helped me study for tests and has helped me in science class.

Haleigh Johnson

it helped me on everything which is awsome!!! Brah!! goz

Abdulsalam

cK-12 has helped me with various science assignments. Also, Happy Anniversary! :D

Aidan Moore

you have helped me in many ways during school hours by giving me a cite where i can study for test.

Natalie Mcginity

Hi. it works a lot espically in school to help me understand things to help me proceed in life.

Naomi