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

CK-12 has helped me keep my students on board with with their math skills by having videos and reading assignments in one place. I love this site as a mathematics instructor.

Judith B.

cK-12 has provided me with material to support my curriculum, and it offers me a variety of activities to support the diverse learners and abilities in my class. Thanks cK-12; you are a teacher's dream come true.

Judith

helped my 2nd grade students practice, good site

Juan G.

it provides my science corrculum

Joshua F.

Our K-12 Science Curriculum is using cK-12 as an online resource tool.

Josh S.

It is a great resource. It provides me alternatives that articulates Language Arts Standard -State & Common Core- in my sciences classes -7th to 12th.

Jose R.

help me with developing lesson plans for ELA or English

Jose

cK-12 helps my students learn Life Science because the lessons are structured in just the right format, with much available in the form of support and resources. Thank you cK12!

Jose

Help my students learn in their Science class.

John A.

CK 12 is a great resource to use both in the classroom and for homework. The links to the Canvas platform are very advantageous to me and cut my grading time in half.

John R.

Comments from Students

you helped me so much with my biology witch i'm still using you for thank you

Adrien J.

Younhelped me with my science work for school.

Adriana R.

CK-12 is a fantastic resource website that make learn way much more easier thank you and happy 10th anniversary

Abel

It helped me keep track of my work

Adrian R.

It help me learn how to turn fractions into decimals

Adriana

You helped me a lot with science

Abel

ck-12 has helped me understand chemistry better and i want to congratulate and thank you for your services

Abdullah J.

CK-12 has been incredible in providing me with information for my biology projects.

Abdullah A.

In a word, it helped me learn more about Chemistry.

Abdul B

they helped me learn 7th grade

Aaron