CK-12 Stories

Unedited stories from CK-12 users around the world.
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I am a huge proponent of the open-source philosophy, especially where it pertains to education. CK12 has proven that a sensible, intelligently-organized text can be assembled unde...
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We love the materials on your website. This is a wonderful way for our teachers to experiment with using web-based resources in our classes. Thank you!
First, I used your Biology textbook and (very) successfully completed the CLEP biology test!
I am now attempting to do the same for a Chemistry CLEP test. There are question...
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Thank you for making CK-12 a free source material. I use your resources extensively!
I love how I can use my chemistry FlexBook on my iPad and not carry around a heavy book!
I think you are doing a great job and I was glad to incorporate your flexbooks into our eigth grade lesson plans using the Kindle for pc app... keep up the great work!
I believe FlexBooks are the way of the future!
I appreciate the efforts of CK-12 to provide quality products for all educators, including homeschooling families. I appreciate that you allow homeschooling parents access to teac...
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You guys are the best. You can change many lives, since you pretty much offer free education for many children around the US and the world.
I really appreciate your organization. I am 73 years old and it’s been over 55 years since I studied Chemistry. Four years ago when we were foster parents we adopted our last thr...
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I'm very, very grateful to CK-12. CK12 is really a key resource for our learning!
Thank you everybody who is at ck12. For self learners like me this site is the greatest boon. May GOD bless you people!
Thanks for all the help CK-12, it's a fantastic site.
I enjoy using ck-12 because there are so many different ways to learn the same information, I feel that I can fully understand whatever concept I'm looking at much easier.
CK-12 Foundation is noble work for huminity and mankind
Thanks for all the help CK-12, it's a fantastic site.
Thank you for the generosity of your efforts. My students have gained from your materials and I have been a better teacher. Thank you. I appreciate the higher order thinking req...
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You are a great resource!!! Thank you for getting the job done.
With the student that I am teaching science to, the material you have provided on your site is fantastic. You have made my job much easier by making this available. Thank you.
You guys are the best. You can change many lives, since you pretty much offer free education for many children around the US and the world.
CK-12 has created the most powerful digital text on the market and in the process is pioneering the digital text industry. The free Flexbooks allow for easy editting, ability to s...
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I think the improvements that are being made are wonderful. I believe that this system has much more to offer that some of the other currently popular student resources such as Kha...
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I LOVE MY CHEMISTRY TEACHER FOR INTRODUCING CK-12 TO ME!!!!
Thank you for your wonderful study help...because of your site and my own school's help, I have become successful in earning a higher ACT score!!
I am a rising sophomore at Cupertino High Schoool, and I have been using
your website for my studying, and review for quite a while now. It has
been extremely helpful...
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I really enjoy the site and it's very refreshing to have access to free exam prep material.
CK-12 is simply amazing!
I think the site is wonderful and we certainly appreciate the content being updated on a consistent basis.
Dear CK12 Support, I want to share with you that last year I used the CK12 Biology Text, Student Workbook and the Teacher Resources. I found these to be incredibly
useful. T...
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Just discovered your site through a link on the creative commons website. I was very impressed with the design, content, and ease of use. I'll be using it for my kids during the su...
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Thank you to everyone at CK12. You have been hugely important in my development as a teacher over the last several years. You are impacting the lives of many kids here in North Car...
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I LOVE my CK-12 and I love what you have done with the concepts this year. For Algebra 2, we are supplementing with CK-12 this year and I love how I can find exactly what I need to...
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You guys are awesome and thank you so much for making this. I enjoy using it :)
You guys are revolutionizing public high school education. It's fantastic! Keep it up, please.
I love how I can use my chemistry FlexBook on my iPad and not carry around a heavy book!
The FlexBooks are so much better than any other textbooks I have found. They allow my students to advance much further in their studies than they would in the public school setting...
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We appreciate the tools provided by CK-12 to help in our children's home school education. CK-12 is a valuable resource for us. Thank you!
Love Love Love what CK-12 has done so far. My students love it, too!
Excellent site with amazing resources. The service you have provided is so greatly appreciated and I am grateful for the services you provide. Thank you for all you have done for ...
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First of all, THANK YOU for assembling this extraordinary chemistry text. I am implementing it across the board for general chemistry at Kirksville High School (Missouri).
Love your books and the click through features especially. It helps the content come alive for the student!
I hadn't visited your site for a while and I am absolutely astounded and blown away by what you have put out there for the public. Wow, wow, wow! I am a homeschooling consultant wh...
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Great site with great resources. Well done one creating such an invaluable resource and making it free.
I appreciate the efforts of CK-12 to provide quality products for all educators, including homeschooling families. I appreciate that you allow homeschooling parents access to teac...
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You all are a help to all students. You all are awesome!
I love the work you guys are doing. I'm a physics teacher in Denver Colorado and I have been "following" the Peoples physics book for a couple of years and the work you guy have do...
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I really find your books extra ordinarily helpful in my studies. I have recommended this site for couple of my friends who were very impressed to see your Flex Books I had. I truly...
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I am extremely grateful for the CK-12 materials it helps me home school my younger siblings. It gives me great ideas on how to order and plan their lessons.
I appreciate the work that your organization has done. It's wonderful to find a high quality curriculum. It's wonderful and astonishing that when that curriculum is free!
I have a STEM girl (8th grade) who needs advanced content that is not faux/pseudo-science. It is difficult (and often expensive) to find quality secular science materials for home ...
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I *love* your flexbook system for Alg I and Geometry... This is a fantastic idea!
CK-12 has helped me learn and achive good grades.
CK-12 Foundation is noble work for huminity and mankind
We appreciate the tools provided by CK-12 to help in our children's home school education. CK-12 is a valuable resource for us. Thank you!
Like the Geometry textbook very much. We are a poor school district, but our students do have laptops. Because of you, we are able to provide a great text to the students.
What you all have done, to open the door to educators to see how you all think, dream, and create. It is a wonderful process that all teachers would benefit from learning. Your pro...
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My students are enjoying the books! They are REALLY helpful! In a situation where funding doesn't permit the purchasing of mainstream texts, your texts have been a real godsend.
I like your organization because it is a great step to spread the education in the poor world. I really like CK-12 and hope it will continue to provide free resources to students ...
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Thank you for the materials and work created. It is refreshing to find up to date material easily accessed in so many platforms~ printed, tablet, computer, etc. I view CK-12 as a p...
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Dear CK12 Support, I want to share with you that last year I used the CK12 Biology Text, Student Workbook and the Teacher Resources. I found these to be incredibly useful. They wer...
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You guys are revolutionizing public high school education. It's fantastic! Keep it up, please.
This is the first Science text book that my son has enjoyed. He is now getting it done and he is retaining it!
I love the idea behind the CK-12 learning resources. They are very stimulating and quite interactive; the pedagogy employed is very effective.
CK-12 represents the future of education; knowledge should be available free to any that desire it.
I like your organization because it is a great step to spread the education in the poor world. I really like CK-12 and hope it will continue to provide free resources to students ...
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CK-12 is an amazing program! I am so glad I found it!
Thank you for the materials and work created. It is refreshing to find up to date material easily accessed in so many platforms~ printed, tablet, computer, etc. I view CK-12 as a p...
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I think that your site is awesome and I believe it is worth supporting at this time. I really believe that materials should be free for everyone! Thank-you!
I think the site is wonderful and we certainly appreciate the content being updated on a consistent basis.
I randomly found your site when I was searching for some E-books,and
luckily found this. And I was amzed to see that you give such awsome books
for free! I am a math ...
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I was and I am still amazed by the service, fantastic!
I love the concept, love how the organization is working, and love the website as a collaborative space for teaching professionals.
We are just beginning to explore CK-12. The possibilities are very exciting for us! Thanks for all you do for the betterment of our nation's young people. Your products and serv...
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You all are a help to all students. You all are awesome!
Love Love Love the "Traditional Textbook" feel. In other words, I have had to work with some "new" math textbooks that are absolutely worthless to the student on their own. These F...
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I love the idea behind the CK-12 learning resources. They are very stimulating and quite interactive; the pedagogy employed is very effective.
As a Principal of a small private school, I wanted to express my thanks for the difference your flexbooks have made in our instructional content in the
STEM subject areas. A...
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Thank you for your wonderful study help...because of your site and my own school's help, I have become successful in earning a higher ACT score!!
Thank you for providing this free service. As a low-tuition private school, resources such as ck-12 allow us to provide quality education without raising tuition.
We really love your products. The ability to access other material is really helpful for our teachers and students alike!
Thank you, CK-12, for all that you do! Without your support, I could not have been as successful as I am now :)
My students are enjoying the books! They are REALLY helpful! In a situation where funding doesn't permit the purchasing of mainstream texts, your texts have been a real godsend.
I'm very, very grateful to CK-12. CK12 is really a key resource for our learning!
High quality, simple, FREE! This enables me to move toward 'tailored learning' for each student.
CK-12 is a powerful learning tool because of its customization advantage.
I tell everyone about CK-12! I really enjoy being able to bring all of our school books with us and not breaking my back to do it! Thanks again for developing FLEXBOOKS!!!!!
Awesome. Thank you. I work with kids with learning disabilities and the text seems to be very appropriate for them. Lots of examples, good reading level, to the point.
I enjoy using ck-12 because there are so many different ways to learn the same information, I feel that I can fully understand whatever concept I'm looking at much easier.
Thank you so much for the materials provided online. With our transition to aligning our curriculum to national standards, we needed some supplemental materials to meet those stand...
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Wonderful resource. works especially well for more kinetic children who are overwhelmed by a traditional textbook.
Thank you! Without these tools it would be impossible for our family to educate our children in such a high standard due to the high price set on knowledge in printed form.
I really enjoy using ck-12, and I want to thank you for offering such a helpful website to students like me.
I love the concept, love how the organization is working, and love the website as a collaborative space for teaching professionals.
This is an excellent resource that many of my students have found valuable!