- Move the bottom-most figures, yellow rhombus and red trapezoid to the right of the rug, below the box.
- Start with the large green square, slide it down in front of the child and say: “This shape is called a _________ (allow the child a chance to answer) square.”
- Next bring down the large yellow parallelogram. “This shape is called a ________ (allow the child a chance to answer) square.”
- Continue to name all the figures in order until two unknown shapes are found.
- Do a three period lesson with two unknown shapes. On subsequent days, continue to present shapes until the child learns them all.
POINTS OF INTEREST
- Touching the black line.
- Matching the triangles.
- Indirect superimposing when triangles fit in the box.
- Naming the shapes and the various triangles used to make them.
CONTROL OF ERROR
- Black guidelines of triangles.
- Color of triangles.
DIRECT AIMS
- Show the various four sided forms constructed from two shapes.
- Development of 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.
LANGUAGE
- Names of quadrilaterals and names of triangles.