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Elementary and Secondary School Mathematics
(Information - k-12math.info)

Links to: K-12math.info a top 5 star Merlot educational resource nominated for United Nations 2016 WSIS e-learning award.
Addition of: Whole Numbers Fractions Decimals Integers Rational Numbers Real Numbers Complex Numbers

  1. Frequently accessed terms

  2. Set, Logic, Number Theory terms


  3. Whole number, Fraction, Decimal, Integer, Rational Number, Real Number, Complex Number terms


  4. Measurement, Standard Units, Length, Area, Volume terms


  5. Point, Line, Angle, Triangle, Quadrilateral, Polygon, Circle, Plane terms


  6. Polyhedron, Trigonometry, Vector, Transformation Geometry, Topology, Other Geometries


  7. Relation, Exponent, Equation, Function, Equation (2 variables), Polynomial, Rational Expression, Quadratic terms


  8. Coordinate System, Problem Solving, Statistics, Probability, Progression, Logarithm, Matrix, Calculus terms


  9. Textbook Series Reviewed
  10. Series resources with links
  11. Reviewing Criteria

  12. The world at large:

    1. 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.

    2. 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.

    3. African Teacher Education OER Network
      South African Institute for Distance Education (SAIDE)


    4. 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.

  1. Teaching OER Mathematics using OER resources.

  2. Creating a K-5th grade OER series to complete the 6th to 12th grade CK-12 math textbook series.

  3. Money as you Learn is a tool for Educators to Integrate Personal Finance into k-12 mathematics.

  4. Key points in Writing a textbook. (Especially "Keep the text simple..." paragraph)

  5. Interesting kindergarten level example:
    KinderWeb by Brian Petro.

  6. Jenny Eather's A Maths Dictionary for Kids is a good source for lower grade levels.

  7. CoolMath.com dictionary has been on line since 1997.

  8. John Pages's Math Open Reference (Algebra/Geometry reference)

  9. James Sousa's Arithmetic videos


  10. Wikispaces provides activities by grade level

  11. Wikieducator's Math Glossary

  12. The National Council of Teachers of Mathematics Illuminations

  13. Check out the OER Commons website for ideas to develop or incorporate into your materials.

    About K-12math.info

    1. Mission Statement

    2. Events
      Singapore Math added.
      Khan Academy links updated.
      Merlot top 5 star educational resource.
      10 years of serving math education.

    3. Terms of Use

    4. Citing the content

    5. Technical

    6. The Future

    7. Opinions
      Why 1972 ? • Content patterns
      What others think.

    Kindergarten (median age 5)
    1. Standards
    2. Key textbook content 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015 (alphabetical order)
    4. Key textbook content 1972-2015 (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 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015 (alphabetical order)
    4. Key textbook content 1972-2015 (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 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015(alphabetical order)
    4. Key textbook content 1972-2015 (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 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015 (alphabetical order)
    4. Key textbook content 1972-2015 (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 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015 (alphabetical order)
    4. Key textbook content 1972-2015 (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 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015 (alphabetical order)
    4. Key textbook content 1972-2015 (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 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015 (alphabetical order)
    4. Key textbook content 1972-2015 (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 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015 (alphabetical order)
    4. Key textbook content 1972-2015 (most frequently used order)
    5. Curriculum Parameters
    6. Life outside the classroom
    Eighth grade (median age 13)
    1. Standards
    2. Key textbook content 2002-2016 (most frequently used order)
    3. Key textbook content 1972-2015 (alphabetical order)
    4. Key textbook content 1972-2015 (most frequently used order)
    5. Curriculum Parameters
    6. Life outside the classroom
    Ninth grade (median age 14)
    1. Standards
    2. Key textbook content 2002-2016 (most frequently used order)
    3. Content w/CNX and CK-12 2.0 version (alphabetical order)
    4. Content w/CNX and CK-12 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 2002-2016 (most frequently used order)
    3. Content w/CNX and CK-12 2.0 version (alphabetical order)
    4. Content w/CNX and CK-12 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 2002-2016 (most frequently used order)
    3. Content w/CNX and CK-12 2.0 version (alphabetical order)
    4. Content w/CNX and CK-12 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.



Note: www.K-12math.info is not a commercial site or funded by any organization. It is not affiliated with any website of a similar name.
The views expressed in this site are those of its creator: Jim Kelly --- Send comments and questions to: k-12math(at)sbcglobal(dot)net

©1972 (paper), 1985 (APPLE II/PC), 2005-2016(www) Jim Kelly - All Rights Reserved.