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

CK-12 has helped me by providing resources to support and reinforce lessons for my middle school students

Elaine H.

I have used articles on a variety of Science topics with students to enhance their understanding

Ela B.

As a teacher it provides a resource for my students they may not have thought about. I look forward to seeing what it has to offer.

Ed

wonderful resource for my homeschoolers

Easton

thanks my child is studing in 6th std .i want he knows all babic concept of math and science.thanks

Shobha K.

Ck12 has revolutionized the manner in which I teach. This magnificent educational asset has taken the text book out of the classroom and made learning accessible to students anywhere there is a internet connection

Michael R.

I am a first-year chemistry teacher in an under-funded charter school. Our books are almost 10 years old and our lab doesn't have a complete stock. While searching to remedy some of these challenges, I stumbled upon CK-12 which offers a solution to a semi-outdated text and no online option for students who have grown up in the technology age. Thank you for allowing me to add your site as a resource and have options for useful tools to teach my students. Your site helps to make me a better teacher.

Dr K

ck-12 is an amazing resource that provides up to date information that I can use to supplement our science textbooks. It also has leveled activities which helps when differentiating instruction. Keep up the great work!

Donna M.

ck-12 is an amazing resource that provides up to date information that I can use to supplement our science textbooks. It also has leveled activities which helps when differentiating instruction. Keep up the great work!

Donna M.

Thanks for the science and math content

Donna H.

Comments from Students

CK-12 has helped me provide online resources for my special education students to access at home!

Lurleen M.

i have used ck-12 while home educating my children via google apps

Luna F.

CK-12 has been a wonderful resource for my students. I love how there are readings and multi-modal methods of having students explore topics.

Luanne

This resource has been invaluable to me. I can use it for remediation and acceleration. Thank you.

Louise P.

I was able to create worksheet practice for my students.The videos available were also helpful in helping students review concepts

Lotoya G.

This has been an excellent resource for my class room. Our students do not have take home text books since we are a Title 1 school and money is limited. I have used this as a resource for homework and differentiation using your different workbooks. I have also used it as a large group presentation of a topic and then practiced using materials linked. I have also created several "webquest" type activities for use in our computer lab. Thanks for all of the hard work that went into this and I would love to see Social Studies/World/American history as fleshed out as the science is! Loved it!

Lorre C.

I work at a Stem High School - Hudson Valley P-Tech in NY. Our mission is to connect math to the real world for our students. I liked your distance formula lesson and right now I am looking at your amplitude, Freq & period info. Keep up the good work!!

Lorraine N.

cK-12 helped by providing challenging and interesting activities to supplement classroom learning

Lorenza B.

with lessons for the 1st grade classroom

Loralei B.

cK-12 has been very helpful in providing short assessments that I use as homework, bell-ringers, and exit- slip activities in Science!!!!!

LJ B.