February 3, 2006
Volume 11 No. 5

In This Issue


Visual Math Learning

Mechanical Drawing




Math DL, The Mathematical Association of America's Mathematical Sciences Digital Library, recently introduced OSSLETS as their newest collection. The first three Open Source, Sharable Mathlets (OSSLETS) use Macromedia Shockwave and Macromedia Flash:

  • multiParameter Animation - create live graphs and animations of one or more functions that depend on several parameters
  • linearTransformation - explore visually the effects of a linear transformation of the plane given by a matrix equation y = Ax
  • PlanarGraphs - study planarity for graphs

Visual Math Learning


Wayne Allen Bateman describes his Visual Math Learning site as "a free educational web site featuring an interactive tutorial for teaching elementary mathematics and basic arithmetic. It is an instructional aid for parents, teachers, and educators of primary, elementary, and middle school students. The lessons include games, puzzles, animations, and virtual manipulatives that emphasize learning concepts by visualization."

Links from Bateman's main page include narrated lessons and interactive games that require the Flash plug-in:


  • Natural Numbers
  • Factors
  • Counting
  • Division
  • Number Bases
  • Fractions
  • Addition
  • Fraction Arithmetic
  • Subtraction
  • Inverses
  • Integers
  • Equivalence
  • Multiplication
  • Common Denominators

Exercises and Games

  • Successors
  • Add Cross
  • Addition Table
  • Shortest Route
  • Subtraction Table
  • Counting Steps
  • Multiplication Table
  • Sliding Factors
  • Factors Table
  • Factorgram
  • Scrambler
  • Division Table
  • Capture Board
  • Equivalent Fractions
  • Fraction Rings

Mechanical Drawing - Sanders


Cathi Sanders has written web pages detailing the Mechanical Drawing course that she developed for Punahou School. Her description is:

"Mechanical Drawing is a one-year, one-credit course at Punahou School, in Honolulu, Hawaii. The purpose of this course is to introduce students to technical drawing, as used in the professions of Graphic Design, Architecture, Engineering and related fields.

"In this class, students will learn how to draw in 2- and 3-dimensions using pencil and paper and using computer software. In learning different drawing techniques, students will do a variety of creative projects such as designing a logo for a business and a poster to advertise an event (Graphic Design), designing a simple invention and a package (Industrial Design, Product and Package Design) and designing their 'dream home' (Architecture)."

Sanders recently retired from teaching at Punahou School, Honolulu, Hawaii.

Her pages include:

  • Introduction to Mechanical Drawing
  • Cycle Sheets
  • Lessons

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