Testimonials

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

The Awesome Ability to Update CK-12 FlexBooks®
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The Awesome Ability to Update CK-12 FlexBooks®
Curating CK-12 FlexBooks® for Relevance and Engagement
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Curating CK-12 FlexBooks® for Relevance and Engagement
Using CK-12's Platform to Deliver Instruction on Devices
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Using CK-12's Platform to Deliver Instruction on Devices
Instantly See CK-12 Content in More Than 90 Languages
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Instantly See CK-12 Content in More Than 90 Languages
Using CK-12 in a Large School District
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Using CK-12 in a Large School District
CK-12 Simulations Connect Classroom with Real World Situations
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CK-12 Simulations Connect Classroom with Real World Situations
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
Personalizing and Blending Learning with CK-12
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Personalizing and Blending Learning with CK-12
CK-12 Is My Go-To Source for Classroom Material
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CK-12 Is My Go-To Source for Classroom Material
Illustrations Come to Life with CK-12
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Illustrations Come to Life with CK-12
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

Comments from Educators

Identify resources staff can use to develop relevant science curriculum

Brian A.

My students love CK-12's Braingenie, and I do too. This is my 2nd year using Braingenie, and I have helped several other teachers become acquainted with it too. I especially love that I can create the goals for my students and then track their progress through the reports.

Denise T.

Provides revision.

Gabriella R.

Thank you for helping me home school.

Anel

Great resource for students and teachers

Dawn R.

I'm a first year teacher in an impoverished school district. Having virtual tools is the best way to close the achievement gap between my district and well-funded schools. Thank you!

Barbara F.

very helpful

Filden

lesson plan for the topic mendel's law of inheritance

Eric C.

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

Bhawesh K.

I love to use ck12 on and off campus. and i love all the free resources

Cooper L.

Excellent resource for students struggling with homework.

Flor

Wonderful simulations to enhance student understanding AND they work on the student iPads!

Chauncey H.

I love the webinars; they helped me get my classes set up in ck-12 and helped me create my own textbook. Although I publish my own workbook I often assign extra practice for the students on ck-12.

Deb M.

Thanks to CK12.ORG, my students enjoy the assignments and the activities created by ck12. Thank you.

Anna M.

Providing great resources for my homeschooling needs

Jenny

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 A

CK-12 has provided resources so that I can be a more effective teacher!!

Lydia C.

I use your lessons as homelearning activities

Lianett H.

Comments from Students

you helped me with science grade

Faith

you helped me pass algebra 4

Jonny

This site helped me that I am passing all my grades and I appreciate all the help.

Matthew Abadam

You helped me look and learn about minerals and many more things. HAPPY ANNIVERSARY!

Candace

Thanks!!!!!!!!!!!

Yoselin Huequis-Ayala

I am a student, currently getting my Masters in Special Education and I have found that the resources available at ck-12 have inspired me and stimulated a fresh approach to teaching and learning, particularly for kids with special needs and for kids needing enrichment resources.

Patty Adams

it helped me understand physics more.

Jamessantana

well it help me to do my cornel notes and to get the work i need

Abdiel

When I have problems in science, cK-12 is there to help.

Alan Mao

My school curriculum is onilne, and they direct me to you guys for science, and it's actully fun to learn science now!

Maeryn

You helped me by learning how atoms are and how small they are. It's crazy on how small they really are.

Falynn Peterson

CK-12 Helped me better understand things that were spoken in-class.

Zach

CK-12 Provides excellent learning tools and essentials and allows me to access it online for free.

Sean Finn

Hello!!!

Venku

OMG!! cK-12 has helped me with sooo many assignments at school!! When my teacher assigns me a page from this website, it helps me with things I don't know, and when I take a quiz afterwards, I get a great grade!! Thank you cK-12!! :D

Wolfesess

I love to use this website for 7th grade science it helps soooooo much i love this website.

Ian

y'all helped me learn about minerals.

Izzy

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

Abdullah Jamal