Page 170 - NUMINO TG_4A
P. 170
11Quadrilateral Puzzle Unit
Material Puzzle Sheet [A5]
Objective: Review and make quadrilaterals. Have students move around and rotate the
given pieces to make quadrilaterals.
Move 1 piece to make a different trapezoid.
Move 1 piece to make a trapezoid.
trapezoid Since the original shape is a square, the
sides highlighted in red are parallel. The new
Move 2 pieces to make a different rectangle. shape has one pair of parallel sides, and is a
trapezoid.
rectangle
Move 2 pieces to make a rectangle.
11. Quadrilateral Puzzle 91
ac
a b
bc ab
c
The length of the lines highlighted in red are
a+b, and the length of the lines highlighted in
blue are c. We can see that the opposite
sides are equal, and that the new shape has
two pairs of parallel sides. The new angles
are 90 degrees ( =90). The shape
made is a rectangle.
Trapezoid Rectangle
One pair of parallel sides. Two pairs of parallel sides.
Opposite sides of equal length.
4 right angles.
4A Unit 11 153
Material Puzzle Sheet [A5]
Objective: Review and make quadrilaterals. Have students move around and rotate the
given pieces to make quadrilaterals.
Move 1 piece to make a different trapezoid.
Move 1 piece to make a trapezoid.
trapezoid Since the original shape is a square, the
sides highlighted in red are parallel. The new
Move 2 pieces to make a different rectangle. shape has one pair of parallel sides, and is a
trapezoid.
rectangle
Move 2 pieces to make a rectangle.
11. Quadrilateral Puzzle 91
ac
a b
bc ab
c
The length of the lines highlighted in red are
a+b, and the length of the lines highlighted in
blue are c. We can see that the opposite
sides are equal, and that the new shape has
two pairs of parallel sides. The new angles
are 90 degrees ( =90). The shape
made is a rectangle.
Trapezoid Rectangle
One pair of parallel sides. Two pairs of parallel sides.
Opposite sides of equal length.
4 right angles.
4A Unit 11 153
