Math Forum Internet News

Volume 6, Number 21

___________________________________________
Back to Table of Contents
___________________________________________


21 May 2001                                       Vol. 6, No. 21

                 THE MATH FORUM INTERNET NEWS

           Grades 6-8 i-Math Investigations - NCTM 
Oregon Curriculum Network - Urner | Linear Algebra Toolkit - Bogacki


                       THE FACTOR GAME
             Grades 6-8 i-Math Investigations - NCTM

       http://Illuminations.nctm.org/imath/6-8/FactorGame/

  To play the Factor Game, one person selects a number on the board
  and colors it red. The second person identifies all the uncolored
  proper factors of the first person's number, and colors them blue.
  The roles are switched and the play continues until there are no
  numbers remaining with uncolored factors. Each person adds up the
  numbers they have colored. The winner is the person with the
  largest total. Players then walk through an analysis of game
  strategies and an introduction to the definitions of prime and
  composite numbers.

  "The Factor Game" is one of four i-Math Investigations 
  currently available for Grades 6-8. They are ready-to-use, 
  online, interactive multimedia math investigations, each 
  offering:

    - student investigations
    - teacher notes
    - answers
    - related professional development activities

  The other three titles for Grades 6-8 include:

    - Analyzing Numeric and Geometric Patterns of Paper Pool
      http://Illuminations.nctm.org/imath/6-8/pooltable/

    - Simulating Probability Situations Using Box Models
      http://Illuminations.nctm.org/imath/6-8/BoxModel/

    - Exploring Histograms
      http://Illuminations.nctm.org/imath/6-8/BarChart/

  A fifth i-Math Investigation, Gathering Evidence About 
  Students' Understanding of Volume, is forthcoming.

  Each of these activities has a student version that can also
  be downloaded to use offline.


-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-


          THE OREGON CURRICULUM NETWORK - Kirby Urner

              http://www.inetarena.com/~pdx4d/ocn/

  Kirby Urner provides background reading and curriculum 
  outlines on a variety of mathematical topics, as well as 
  information about his philosophy and methods.

  Sections include:

    - My Philosophy of Education
    - Some Autobiography 
    - Symbols and Operations
        Algorithms 
        Computer Languages
    - Spatial Concepts 
        Static Networks
          Euler's Law
          Descartes' Angular Deficit
          Taxonomies of Polyhedra
          Concentric Hierarchy
        Rotating Networks
          Symmetry Families
        Macro & Micro Architecture
          Symmetry 
    - Topics for Exploration 
        The Calculus
        Spatial Investigations
        Dynamical Systems
    - Trends in Early Math Education
    - An Overview of My Approach
    

-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-


           LINEAR ALGEBRA TOOLKIT - Przemyslaw Bogacki

              http://www.math.odu.edu/~bogacki/lat/
     
  A Web "toolkit" for learning and practicing basic linear 
  algebra procedures, such as Gauss-Jordan reduction, 
  calculating the determinant, or checking for linear 
  independence. 

  Modules include:

    - Systems of linear equations and matrices
        Row operation calculator
        Transforming a matrix to row echelon form
        Transforming a matrix to reduced row echelon form
        Solving a linear system of equations
        Calculating the inverse using row operations
    - Determinants
        Calculating the determinant using row operations
    - Vector spaces
        Linear independence and dependence
        Determining if the set spans the space
        Finding a basis of the space spanned by the set
        Finding a basis of the null space of a matrix
 

-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-

                      CHECK OUT OUR WEB SITE:

        The Math Forum  http://mathforum.org/
          Ask Dr. Math  http://mathforum.org/dr.math/
  Problems of the Week  http://mathforum.org/pow/
   Mathematics Library  http://mathforum.org/library/
       Teacher2Teacher  http://mathforum.org/t2t/
     Discussion Groups  http://mathforum.org/discussions/
   Join the Math Forum  http://mathforum.org/join.forum.html
      Send comments to  the Math Forum Internet Newsletter editors

   _o    \o_       __|    \ /     |__        o _   o/  \o/
  __|- __/   \__/o   \o    |    o/    o/__/  /\   /|    |
     \   \   /  \    / \  /o\  / \    /   \  / |  / \  / \

[Privacy Policy] [Terms of Use]

_____________________________________
Home || The Math Library || Quick Reference || Search || Help 
_____________________________________

© 1994-2014 Drexel University. All rights reserved.
http://mathforum.org/
The Math Forum is a research and educational enterprise of the Drexel University School of Education.The Math Forum is a research and educational enterprise of the Drexel University School of Education.