Testimonials

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

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
Students Love CK-12 Study Guides
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Students Love CK-12 Study Guides
CK-12 PLIX Makes it Very Easy for Teachers With Very Little Prep Time
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CK-12 PLIX Makes it Very Easy for Teachers With Very Little Prep Time
Personalizing and Blending Learning with CK-12
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Personalizing and Blending Learning with CK-12
CK-12 Meets Every Student's Needs
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CK-12 Meets Every Student's Needs
EPISD Saw Results After One Year of CK-12 FlexBooks®
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EPISD Saw Results After One Year of CK-12 FlexBooks®
CK-12 Offers Support for All Students and Teachers Worldwide
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CK-12 Offers Support for All Students and Teachers Worldwide
Be a Champion Educator with CK-12
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Be a Champion Educator with CK-12
Using CK-12 Modalities to Bring Learning to Life
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Using CK-12 Modalities to Bring Learning to Life
CK-12 Keeps Your Students Engaged
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CK-12 Keeps Your Students Engaged
CK-12 Fuels a Greater Learning Experience
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CK-12 Fuels a Greater Learning Experience
CK-12 Availability: No More Excuses
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CK-12 Availability: No More Excuses

Comments from Educators

CK-12 has helped me keep my students on board with with their math skills by having videos and reading assignments in one place. I love this site as a mathematics instructor.

Judith B.

cK-12 has provided me with material to support my curriculum, and it offers me a variety of activities to support the diverse learners and abilities in my class. Thanks cK-12; you are a teacher's dream come true.

Judith

helped my 2nd grade students practice, good site

Juan G.

it provides my science corrculum

Joshua F.

Our K-12 Science Curriculum is using cK-12 as an online resource tool.

Josh S.

It is a great resource. It provides me alternatives that articulates Language Arts Standard -State & Common Core- in my sciences classes -7th to 12th.

Jose R.

help me with developing lesson plans for ELA or English

Jose

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

Help my students learn in their Science class.

John A.

CK 12 is a great resource to use both in the classroom and for homework. The links to the Canvas platform are very advantageous to me and cut my grading time in half.

John R.

Comments from Students

Helped me understand Chemistry better.

Molly

they have helped with all homework

Mikia W.

I sucked in math and these guys gave me multiple tools to strengthen mymath skills

Mikeyia

Since I joined ck12 I've learned about geography, biology and chemistry easily by having information in easy access

Mikel A.

It was very professional and useful.

Mike R.

You guys have helped me obtain notes and study. You also help to organize the content. Thanks!

Max

The practice problems help me study for tests.

Mauricio

This has helped to realize the simple things about the greenhouse effect

Maurice F.

cK12 helped me and my science class through extensive learning programs and quizzes, and it is very easy to get around inside. It is very helpful to me and my class. I learn a lot here!

Maude W.

It helped me with my vocabulary

Mattneil M.