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Pitra, Barbara Marconi Community Academy
The children will name, identify and categorize the geometric shapes
(triangle, square and rectangle) by the number and length of the
The students will identify triangles, squares and rectangles in their
Through observation, comparison and manipulation the children will
construct pictures, shapes and patterns with the triangle and square.
Using game formats the students will gain practice in recognizing and
naming geometric shapes.
1. various sized plexiglas triangles, squares and rectangles with
magnetic tape applied to the backs of the shapes so they will stick
to the blackboard
2. 20 triangles and squares made of plexiglas or paper (2" on a side)
3. a ditto of triangles and squares for each child (2" on a side)
6. overhead projector
7. "Color and Shape Bingo" by Trend Co.
8. 1 deck "I have ....who has...." cards
This presentation is appropriate for use with primary children. Using
the plexiglas shapes the students will discuss similarities and
differences as well as various ways in which the objects could be
categorized. Elicit from the children that a triangle has 3 sides, a
square has 4 equal sides and a rectangle has 2 long sides and 2 short
sides. On the blackboard make a category heading for each shape and
have several students go to the board and place the magnetic shapes
under the correct heading. Review names and characteristics of each
Why did you place that object there?
What are the characteristics of that shape?
What is your shape called?
Ask the children to name these geometric shapes as they identify them
in the classroom and their environment.
The children will cut out squares and triangles from ditto sheets in
several different colors. All of the new shapes and patterns that
will be constructed will be shown on the overhead projector. This
will help the child who has difficulty seeing patterns or because of
poor eye-hand coordination. Shapes must not overlap or cover other
shapes. They must line up evenly. Ask the students to show that:
squares can make bigger squares, squares can make rectangles,
triangles can make bigger triangles, triangles can make hexagons but
our triangles cannot make squares or rectangles (we didn't have right
angles). Allow the students to experiment with color and shape in
making new figures, shapes and patterns. Demonstrate some of the
creations on the overhead. After the class has had adequate time to
experiment, request that they glue their "favorite" on to a piece of
Play Trend Co.'s "Color and Shape Bingo" or make a bingo game. The
"I have ... who has ..." card game is teacher made. It consists of a
deck of cards, one for each student. The cards may be used to drill
many topics. For example, the child reads his card, "I have a red
square, who has a blue rectangle." The child who has the blue
rectangle then reads his card, etc. The last card read is the winner.