Lesson 8 of 19
In Progress

Box 2 – Third Presentation

Collin January 14, 2022
  1. When the child has built all the triangles as in the First Presentation, say: “Today I am going to do something special with the triangles.”
  2. Starting with the gray, then green, yellow and red, build the figure shown below and say: “I made a great big triangle.” Trace starting from the lower left corner going counter clockwise.
  • Take it apart, place it in its proper position and offer the child a turn.
  • Return them to their place on the rug.  Then replace them back into the box, the box to the shelf.

POINTS OF INTEREST

  • Tracing the black lines.
  • Matching the triangles.
  • Superimposing the gray triangle.
  • Making the one big triangle.
  • Indirect superimposing when putting them back in the box.
  • Naming the shapes and the various triangles used to make them.

CONTROL OF ERROR

  • Black guides.
  • Different colors of triangles.

DIRECT AIMS

  • Showing that different sets of triangles, when put together, are equal in size to the gray triangle.
  • Development of the ability to discriminate geometric forms.
  • Growth in concentration and independence.

INDIRECT AIMS

  • Preparation for Geometry.
  • Development of appreciation of line and form.
  • Development of creativity.