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

This website was a great thing for us to us because it help us to do many of our assignments. The class and I really appreciate this website and what it has provided for us. My class and I have a new assignment to do and we use cK-12 because it makes us do different things on it to provide us and them with different information they need.

Billy S.

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

Bhawesh K.

I have improved the labs for my online physical science class.

Beth R.

You helped our classroom by supporting our lessons!!

Bethany H.

I have found CK-12 a helpful resource for enriching my high shcool biology classes.

Beth A.

Weekly quizzes and online practice. Also use the flexbook for practice for HW.

Berenice

Live saver! Ck-12 has been a wonderful resource for me since I am teaching a curriculum that I have not taught before. Great asset.

Belinda C.

With School and sceince

Basya V.

Hi! I have used Ck-12 to supplement the resources provided by my school district for years. Eventually, CK-12 became a resource that is recommended by my school district. Congrats and best wishes as you celebrate your 10th anniversary. Also, thank you!

BC

CK-12 has helped my students access current science content as we implement the Next Generation Science Standards.

Barbara W.

Comments from Students

WOW! I just absolutely can not express so helpful CK-12 has been in my science teaching. We are moving away from our old standards and adopting NGSS. We currently do not have a textbook to use with the students and CK-12 has been a life saver! Thank you!

Lisa N.

Resources fo my science students

Lisa J.

I use ck-12 books in my science classes, especially in Advanced Biology. Thanks so much for the awesome resources!!

Lisa J.

I am home schooling my 15 year old son and have been having financial problems. If it were not for this web site, I would be struggling to provide him with proper resources to teach him. Thank you so much!

Lindy S.

homeschool

Lindsay P.

CK-12 has provided consistent content for math courses that are both adaptable and flexible.

Linda S.

CK-12 helps out on 2 of my subjects and it makes learning easy. And, some of the videos are funny and it makes learning fun too. I love CK-12 because I met some people who work for it and they were so nice. CK-12 is awesome, and I think it should never be

Lillian B.

I was asked to teach a high school physics class at a homeschool coop. It's been a great many years since I had physics in college. cK-12 helped me re-learn physics for myself, and it gave me ideas for what to teach. My students and I especially apprec

Linda M.

I use your lessons as homelearning activities

Lianett H.

My school district went full implementation with the new NGSS standards, but did not provide us with any curriculum. CK-12 saved the day!! Thank you CK-12!!!

Leslie F.