 Frequently accessed terms
 Set, Logic, Number Theory terms
 Whole number, Fraction, Decimal, Integer, Rational Number, Real Number, Complex Number terms
 Measurement, Standard Units, Length, Area, Volume terms
 Point, Line, Angle, Triangle, Quadrilateral, Polygon, Circle, Plane terms
 Polyhedron, Trigonometry, Vector, Transformation Geometry, Topology, Other Geometries
 Relation, Exponent, Equation, Function, Equation (2 variables), Polynomial, Rational Expression, Quadratic terms
 Coordinate System, Problem Solving, Statistics, Probability, Progression, Logarithm, Matrix, Calculus terms
 Textbook Series Reviewed
 Series resources with links
 Reviewing Criteria
The world at large:
 The Commonwealth Educational Media Centre for Asia in New Delhi recently (2013) released
Quality Assurance Guidelines for Open Educational Resources: TIPS Framework Version 1.0 which provides a great deal of information on OER.
 Bangladesh's Elementary and Secondary School Math 2013 open access textbook series has been taken off line. For those who downloaded the textbooks, the information on this site should still match the 2013 edition.
 African Teacher Education OER Network
South African Institute for Distance Education (SAIDE)
 What is ethnomathematics ?
These are a few sources for ideas that may help in your efforts to produce materials for your learning community. Please check and respect their TERMS OF USE.
 Teaching OER Mathematics using OER resources.
 Creating a K5th grade OER series to complete the 6th to 12th grade CK12 math textbook series.
 Money as you Learn is a tool for Educators to Integrate Personal Finance into k12 mathematics.
 Key points in Writing a textbook. (Especially "Keep the text simple..." paragraph)
 Interesting kindergarten level example:
KinderWeb by Brian Petro.
 Jenny Eather's A Maths Dictionary for Kids is a good source for lower grade levels.
 CoolMath.com dictionary has been on line since 1997.
 John Pages's Math Open Reference (Algebra/Geometry reference)
 James Sousa's Arithmetic videos
 Wikispaces provides activities by grade level
 Wikieducator's Math Glossary
 The National Council of Teachers of Mathematics Illuminations
 Check out the OER Commons website for ideas to develop or incorporate into your materials.
About K12math.info
 Mission Statement
 Events
Singapore Math added. Khan Academy links updated.
Merlot top 5 star educational resource.
10 years of serving math education.
 Terms of Use
 Citing the content
 Technical
 The Future
 Opinions
Why 1972 ? • Content patterns
What others think.

Kindergarten (median age 5)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015 (alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
7. Content by textbook in page number order
First grade (median age 6)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015 (alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
7. Content by textbook in page number order
Second grade (median age 7)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015(alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
7. Content by textbook in page number order
Third grade (median age 8)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015 (alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
7. Content by textbook in page number order
Fourth grade (median age 9)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015 (alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
7. Content by textbook in page number order
Fifth grade (median age 10)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015 (alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
7. Content by textbook in page number order
Sixth grade (median age 11)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015 (alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
7. Content by textbook in page number order
Seventh grade (median age 12)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015 (alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
Eighth grade (median age 13)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Key textbook content 19722015 (alphabetical order)
4. Key textbook content 19722015 (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
Ninth grade (median age 14)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Content w/CNX and CK12 2.0 version (alphabetical order)
4. Content w/CNX and CK12 2.0 version (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
Tenth grade (median age 15)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Content w/CNX and CK12 2.0 version (alphabetical order)
4. Content w/CNX and CK12 2.0 version (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
Eleventh grade (median age 16)
1. Standards
2. Key textbook content 20022016 (most frequently used order)
3. Content w/CNX and CK12 2.0 version (alphabetical order)
4. Content w/CNX and CK12 2.0 version (most frequently used order)
5. Curriculum Parameters
6. Life outside the classroom
Please respect the TERMS OF USE statement that appears at the bottom of the sites this website links to.
Thank you.
K12math.info would like to thank a number of organizations and people who have made this project possible:
1. The American Peace Corps for allowing me to become aware of a problem which technology can help solve.
2. Ohio State University Education Library, Chicago Public School textbook repository, Contra Costa County Office of Education (Pleasant Hill, California, US) and to the many developers of OER materials that maintained an open door (open access) walk in policy to their materials.
3. To the developers of HTML and the World Wide Web (and a government) that allows a single person to launch projects like this with minimal costs and bureaucratic interference.
4. To American taxpayers who funded education programs that allowed even people in their mid sixties like me to learn new skills like writing HTML programs. Special thanks goes to Robin Wood, the teacher who went beyond course objectives and allowed me during class time to start developing some of the screens that would become this website .
5. And to users and supporters who have given a life to this website.
Thank you.
