Testimonials

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

CK-12 Helps to Address Learning Gaps
X
CK-12 Helps to Address Learning Gaps
CK-12 Offers Material Unavailable By Traditional Publishers
X
CK-12 Offers Material Unavailable By Traditional Publishers
Every time I open CK-12 There Is Something New and Engaging
X
Every time I open CK-12 There Is Something New and Engaging
Start Small or Dive Right In with CK-12
X
Start Small or Dive Right In with CK-12
CK-12 FlexBooks® as Primary Resource in Algebra One Class
X
CK-12 FlexBooks® as Primary Resource in Algebra One Class
Continue Learning After the Lesson is Over with CK-12
X
Continue Learning After the Lesson is Over with CK-12
CK-12's Adaptive Practice Allows You to Identify Where Each Students' Gaps Are
X
CK-12's Adaptive Practice Allows You to Identify Where Each Students' Gaps Are
Confidence in Connecting to Standards with CK-12
X
Confidence in Connecting to Standards with CK-12
Easy to Update and Modernize Content with CK-12
X
Easy to Update and Modernize Content with CK-12
Illustrations Come to Life with CK-12
X
Illustrations Come to Life with CK-12
Easily Share Content with other Districts and Teachers with CK-12
X
Easily Share Content with other Districts and Teachers with CK-12
CK-12 Has Revolutionized How I Teach
X
CK-12 Has Revolutionized How I Teach

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 While searching to remedy some of these challenges, I stumbled upon CK-12 which offers a solution to a semi-outdated text and no online option for students who have grown up in the technology age.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

Breaking down material into digestible bites.

Tanika R.

cK-12 has helped me regulate my time of doing homework and being able to go back to a recording of a class if I need to remember anything for homework or notes.

Summer

It helped a lot with my school and I just love this website I will use this for the rest of my life!

Summer

I appreciate the free text books. They gave me so many things to learn.

Sumit Y.

It helped me raise up my grades by a lot by telling my teacher to send me some lessons on what I didn't understand that well.

Sihyoung K.

I am an eighth grade student, taking geometry and without cK-12 I would not be able to take this course due to the fact my school doesn't have a teacher to teach it! So this helps me and my online teacher for me to learn geometry!

Sierra A.

Ck-12 has helped me with things I never knew about I hope they teach me new stuff. Thanks Ck-12

Sierra

ck12 has helped me allot. i really apprciete the website

Shyanne S.

It has help me a lot with the hints happy Anniversary ck-12

Shaylee

it helped me get a good grade in science i guess, so thanks!

Sean C.