Testimonials

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

CK-12 Simulations Lead to Richer Learning Experiences
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CK-12 Simulations Lead to Richer Learning Experiences
CK-12 Simulations Connect Classroom with Real World Situations
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CK-12 Simulations Connect Classroom with Real World Situations
CK-12's Key Role in the #GoOpen Movement
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CK-12's Key Role in the #GoOpen Movement
With CK-12, Updating Content has Never Been Easier
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With CK-12, Updating Content has Never Been Easier
Why Mrs. P Loves to Use CK-12 in Her Classroom!
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Why Mrs. P Loves to Use CK-12 in Her Classroom!
Create and Collaborate with Fellow Teachers Using CK-12
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Create and Collaborate with Fellow Teachers Using CK-12
Student Engagement: Working Independently Using CK-12
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Student Engagement: Working Independently Using CK-12
Parents Love CK-12
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Parents Love CK-12
CK-12 Has Engaging and Interactive Content
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CK-12 Has Engaging and Interactive Content
CK-12 Content to Match the Right Level
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CK-12 Content to Match the Right Level
CK-12 is User-Friendly and Fits Each School's Style
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CK-12 is User-Friendly and Fits Each School's Style
Pick Up Where You Left Off with CK-12 FlexBooks®
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Pick Up Where You Left Off with CK-12 FlexBooks®

Comments from Educators

At a time when we were not able to continue paying for private instructions, we found this site and it was our salvation. We valued the set up and the freedom it presented to design the best course of action for 8th grade studies. Now moving on into 9th grade studies and more diligent record keeping, we are continuing on at the 9th grade level.

James L.

Hello guys. Very Good Job, Happy 10th Anniversary

Izzy

many teaching resources are getting this site for me

Jaleesa

Teaching

Jacqueline S.

We use cK-12 for our high school Science and math curriculums and the students love and the teachers find it easy to use and an enhancement over traditional textbooks.

Jack

First year using completely digital books in 7th science thanks to you! Awesome!

J Daniels

It has helped me with very fun and creative activities to deliver meaningful lesson to students of different learning abilities.

Isela

I love science and the online books are so easy to access! I love the ck-12 website home page thing! every thing is so well organized! I just love ck-12!

Isabella

It has help students grasp concepts via video and plix shown by increased test scores on weekly exams and it has help me save time gathering these resources.

Iris H.

I used some of the lessons for my national board certification. Lessons from ck-12 have helped my students to understand concepts from readings and videos provided. Love Ck-12

Holly D.

Comments from Students

You have helped me a lot i really like how you walk us through the problem if we don't get it. HAPPY 10 YEARS !!!!!!!!!!!!!!!!!!!!!!!!!!!

Zoe

CK-12 is some much easier than looking threw a book. It tells you what you need to know. it is an amazing learning tool.

Zach S.

CK12 is really awesome, thank you

Zach D.

CK-12 has provide me with numerous resources ranging from interactive videos to simple reading materials for my teachers and students. These items and your company gives public education some highly important resources.

Willie W.

I'm reviewing mathematics just as a hobby, and CK-12 presents the material logically.

William W.

It's a great learning tool to help me practice! Thank you for this website.

Wasee H.

You have helped me with learning about anatomy and science.

Walter J.

ck-12 has made me be able to complete homework assignments, because of your videos, one suggestion that I have is that the person that talks in the videos, talk alot faster, I always have to watch the videos in x2 speed to not get bored.

Wakeen J.

it helped me immensely

Waheed

CK-12 helped and aided me in my learning journey so much! Thank you so much CK-12, from the bottom of my heart.

Vynateya P.