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Written by antony.robinson on October 31, 2012


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5000+ concepts learned through 15,000+ resources


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Beta community site maintenance

Written by CK-12 Foundation on April 3, 2012

The wordpressmigrate community site will be down for maintenance from from Friday 4/6/2012 at 9am PST through Monday 4/9/2012 at 10am PST. As always, if you have questions, you can email us at wordpressmigrate@ck12.org

CK-12 Wolfram Algebra

Written by CK-12 Foundation on January 24, 2012

CK-12 and Wolfram partner to enhance Algebra I
This highly interactive text is perfect for the high school classroom, covering all Algebra I topics, including but not limited to equations and functions, real numbers, equations of lines, graphs of equations and functions, solving systems of equations, and polynomials.
The base content comes from CK-12 Algebra I – Second Edition, FlexBook and is enhanced by Wolfram technologies including Wolfram|Alpha, Mathematica, and Computable Document Format (CDF).

Download the Entire Book:

Algebra I – Second Edition (.zip)

Download the

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Flexmath Results

Written by CK-12 Foundation on January 4, 2012


Responding to low and historically stagnant Algebra STAR scores, Leadership Public Schools (LPS) instituted an intervention program on their Hayward campus during the 2008 – 2009 academic year. The program targeted all 9th-grade students enrolled in Algebra, supporting them with a concurrent enrollment math intervention class. Equipped with 32 computer workstations, this support class featured a discovery-based curriculum which leveraged technology to both facilitate open-ended exploration while also creating precise mastery of essential algebraic mechanics. Though only partially developed at

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Anoka-Hennepin Case Study

Written by CK-12 Foundation on January 3, 2012

The Challenge:

The Anoka-Hennepin school district is the largest in Minnesota, serving approximately 40,000 students in surburban communities north of the Twin Cities. Similar to many districts across the country, Anoka-Hennepin has faced budget cuts that have forced the district to serve students with increasingly scarce resources. For example: the budget for curriculum adoption, which includes funds for textbooks and other instructional materials, has dropped to $1.5 million from a high of about $3.5 million. Typically, Anoka-Hennepin revises its curriculum and

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CK-12 is hiring for its Summer Graduate Intern Program

Written by CK-12 Foundation on April 26, 2011

In addition to its other regular job postings, CK-12 is recruiting stellar, summer graduate interns to work on one or more of its Science or Math projects.  In your cover letter, please express your expertise and interest in one of the projects and associated subject area(s)–see project descriptions below.  This opportunity is a paid internship, unless student is working to fulfill community service requirements.


All applicants: passion, commitment, strong work ethic, research skills, proactive, precise attention to detail, ability to work

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California Charter Schools Conference

Written by CK-12 Foundation on February 15, 2011

CK-12 Foundation is proud to be the presenting sponsor of the
18th Annual California Charter Schools Conference

March 7-10, 2011

San Diego Convention Center
San Diego, CA

Four Chances to Win an iPad!

Visit booth #413 for a hands-on FlexBook demonstration to learn more about how you can deliver a customized textbook to your students. While you’re there, you may enter our raffle for a chance to win a FREE iPad! We will be raffling off 2 iPads on Tuesday and

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Share your content with the CK-12 community

Written by admin on November 19, 2010

Share your secret sauce with other teachers!

Have you designed a great lesson plan for your class, developed an interesting worksheet or set of problems for your students, or created exciting labs and activities to supplement your science/math textbook? How would you like to share this creative product with your teaching community? We’d like to hear about it.

Just donate your favorite problem set, worksheet, lab, activity or lesson plan that covers any of the middle- or high-school science/math subjects and

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Science Books Page

Written by CK-12 Foundation on August 23, 2010

CK-12 Earth Science – Middle SchoolA work in progress, CK-12 Earth Science for the middle school student covers the study of Earth – its minerals and energy resources, processes inside and on its surface, its past, water, weather and climate, the environment and human actions, and astronomy.
For the HTML version, click here.
For the PDF version, click here.

CK-12 Life Science – Middle SchoolAn introduction to Life Science, this FlexBook for the middle school student is a work in progress covering seven

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New FlexBooks available this fall

Written by CK-12 Foundation on July 28, 2010

The following FlexBooks are available for use this coming school year. They are available as PDF downloads, though some are already fully loaded on CK-12’s official FlexBook System.  We are making these books available NOW, even though they are works in progress, so teachers can preview them for early adoption. If you have any questions, please send them to info@ck12.org.
Middle School Math and Science
CK-12 Middle School Math – Grade 6This FlexBook covers the fundamentals of fractions, decimals, and geometry.

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