Testimonials

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

CK-12 Digital FlexBooks® Allow You to Customize Curriculum
X
CK-12 Digital FlexBooks® Allow You to Customize Curriculum
Save Hundreds of Pages Unneeded Textbooks with CK-12
X
Save Hundreds of Pages Unneeded Textbooks with CK-12
Incorporating Current Events into a CK-12 FlexBook® the Next Day
X
Incorporating Current Events into a CK-12 FlexBook® the Next Day
CK-12 Content to Match the Right Level
X
CK-12 Content to Match the Right Level
CK-12 Meets and Exceeds Standards Requirements
X
CK-12 Meets and Exceeds Standards Requirements
CK-12 FlexBooks® as Primary Resource in Algebra One Class
X
CK-12 FlexBooks® as Primary Resource in Algebra One Class
Sharing CK-12 with Google Classroom and More
X
Sharing CK-12 with Google Classroom and More
Continue Learning After the Lesson is Over with CK-12
X
Continue Learning After the Lesson is Over with CK-12
CK-12 Fuels a Greater Learning Experience
X
CK-12 Fuels a Greater Learning Experience
CK-12 Offers Support for All Students and Teachers Worldwide
X
CK-12 Offers Support for All Students and Teachers Worldwide
Use CK-12 FlexBooks® to Replace Traditional Textbooks
X
Use CK-12 FlexBooks® to Replace Traditional Textbooks
Easily Share Content with other Districts and Teachers with CK-12
X
Easily Share Content with other Districts and Teachers with CK-12

Comments from Educators

It is a great multimedia resource that students like to use collaboratively and independently.

John H.

Its fantastically helpful. My students LOVE ITTT!!!!!

Kent R.

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.

I am so pleased with CK-12. The information is so great for all learning styles and types. The variability of the site allows for differentiation and diversity of learning. Thank you for everything thtat you have done and will do for my students.

Christopher M.

Thanks for the science and math content

Donna H.

CK-12 has helped me get text into the students hands

Grant R.

plan lessons

Artemis B.

Hello CK12! I am an 8th year science teacher. I taught in Philadelphia and Washington DC, and am currently in Abu Dhabi teaching science to 12 year-old girls. CK12 is a revolutionary website. Not only can I access high-quality science literature, but I ca

Amber W.

I'm just starting to use it. It looks agreat resource for me especially being a new teacher.

Abdirashid A.

I use your lessons as homelearning activities

Lianett H.

classroom assignments for Night by Elie Weisel

Janet R.

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

Berenice

CK-12 has not only been a great resource for my students, but it helped me land my first job out of college! I used a CK-12-created NearPod presentation in a lesson I taught to a panel of interviewers in my final round. Thank you for the great work!

Alexis M.

CK-12 has been a great resource for me! The Fourth grade social studies curriculum was new to me last year, so I used ck-12 as my guide! Thanks CK-12 for your awesome free resources!!

Adrienne K.

It has helped me in revising basic concepts before teaching a class. I have used visual representations in my classrooms.

Ajmal R.

It has helped me explain, through problems and text, basic concepts to my students.

Chuck N.

CK-12 has been incredible. I've been using it to homeschool my middle-schooler for two years now, and it is unbeatable.

Kasheia

ck12 is outstanding with providing information, testing material and questions for students to improve their learning in biology. thank you

Cyril F.

Comments from Students

Made me smarter

Jordyn Horne

Hello,CK-12! As a non-native English speaker,I have been reading CK-12 textbooks for learning not only STEM but also English. I really appreciate your hard work to provide such a good learning platform for so long. Wish you all happiness,health and prosper

Weilai

it has helped me understand the complexity of science and break it down for me to comprehend it a whole lot better.

Ivorie Snow

CK-12 has helped me by giving me easy access to textbooks I need for my school work.

Faith Brandt

Very helpful gave me a lot of information that i need in my study

Wiam Alqaderi

It is a great web for kids

Tram

You have helped me become a better student.

Kaitlyn D

Helped me in social studies.

Paul Trumpore

I want to thank you guys for everything you guys have done. You make things easy to access and have offered many helpful things within my classes.

Adam Bradley

It has helped me learn science. In science class we always use this site. My teacher loves this site. Thanks for everything.

Jordan

Ck-12 helps me in science because, they use this website for teaching us. Its working!!!!

Not Telling

i dont know but it has helped me learn somewhat in science...

Paulina

CK has helped me a lot with my journey in knowledge

Aiden Hatfield

it helps me in doing my homeworks and searching for the things that makes me curious

Nur Logan

It really helps advance learning and knowledge for senior high school

Normalina

It has helped me learn my 2 worst subject and it is now one of my favorite subjects all because of cK-12

Quinn Ames

CK12 has helped me through many tough times. It's all because of ck12 that I could get back on track in maths class and I could get a perfect score. It has been immensely helpful. Thank you so much.

Taiba Abid

it helped me in my science class

Ja'Crispy