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®
X
It's Worth Transitioning from Traditional Textbooks to CK-12 FlexBooks®
CK-12 Digital FlexBooks® Allow You to Customize Curriculum
X
CK-12 Digital FlexBooks® Allow You to Customize Curriculum
CK-12 Helps Student Go Deeper with Learning
X
CK-12 Helps Student Go Deeper with Learning
CK-12's Flexibility and Accessibility
X
CK-12's Flexibility and Accessibility
The Impact of CK-12 Simulations is Huge
X
The Impact of CK-12 Simulations is Huge
CK-12's Mission Drove EPISD to Share Materials with Others
X
CK-12's Mission Drove EPISD to Share Materials with Others
The Innovation of CK-12
X
The Innovation of CK-12
It's "Very Easy" to Create CK-12 FlexBooks®
X
It's "Very Easy" to Create CK-12 FlexBooks®
CK-12 Keeps Lesson Planning Process On-Track
X
CK-12 Keeps Lesson Planning Process On-Track
CK-12 Makes Differentiated Learning Come to Life
X
CK-12 Makes Differentiated Learning Come to Life
Using CK-12's Platform to Deliver Instruction on Devices
X
Using CK-12's Platform to Deliver Instruction on Devices
Personalized Learning with CK-12
X
Personalized Learning with CK-12

Comments from Educators

It has helped my students learn and check understanding in biology and biotechnology and really brings great readings and videos together to teach difficult concepts

Giselle G.

it helped me a lot. several lessons gave me ideas on how to attack and execute my lessons.

Gigi G.

it has helped me to attain my bsc

Garvin M.

I'm a new teacher in an under-funded rural school district. I needed something to help me find quality materials for my classes. CK-12 literally saved me my first year. I will always be grateful for ck-12.

Gage O.

Provides revision.

Gabriella R.

ck12 has help me by making me study even harder i am really excited that i am using ck12 and i would give you all a congradulations your 10th anniversary you did work hard for this

Gabriela C.

I'm using CK-12 for the first time to teach ESL Science. The materials seem interesting.

Gabriel L.

I use Ck-12 all the time in my Google classroom. It is appropriate and gives a variety for all abilities. Thank you

Gina R.

money

Freedom D.

lol idk just joined ttyl

Fredrick W.

Comments from Students

This site has helped me study for test in my science class. The quizzes are spot on and the activities I can do really help nas well.

Robert K.

I have advanced in knowledge of calculus

Robert Y.

I like this website because my science teacher has us read out of the books on this website and it's alot better then doing a powerpoint

RJ F.

CK-12 has given me a library of awesome resources to utilize that help me better understand the topics in my classes.

Robbie R.

it has helped me learn many things that i would not have the chance to learn for a while

Rj

CK-12 has helped me be able to access information that would be in my text books when I am out of school and it is a great source for studying for exams!

Morgan

its helped me learn a lot of things i was struggling with

Monunique A.

you helped me get A's on my quizzes

Monique

CK12 helped me by improving my math skills by nearly 25 percent! Without CK12, I doubt I'd ever pass my math class!

Moneebah A.

You saved me from using an old gross textbook and helped me study and take notes in my biology class

Monique