# Elementary Geometry Worksheets Geometry is a verb Workshop 2009 NCTM “Geometry”

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```					Geometry is a verb
Workshop @ 2009 NCTM

“Geometry” Is A Verb:
Making Elementary School
Geometry Come Alive

Kennesaw State University
twatanab@kennesaw.edu

http://science.kennesaw.edu/~twatanab/

Kennesaw State University
e-mail: twatanab@kennesaw.edu
Geometry is a verb
Workshop @ 2009 NCTM

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

Using Compass

1       Draw a circle with the following radius:

a)      2 cm                                         b)     3 cm

2       Use your compass to mark off as many 3 cm segments as you can:

3       Which traveling distance is longer, from Takashi’s house to the City Hall or from
Takashi’s house to the School?

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

Let's make some beautiful designs. Using your compass, make some designs on
the grid paper below.

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

Drawing Triangles

1       Let’s think about how to draw an isosceles triangle with sides of 4 cm, 4 cm and 3 cm.

First, draw the 3 cm side.

2       Let’s draw the following triangles:
a) an isosceles triangle with sides of 10 cm, 7 cm and 7 cm.
b) an isosceles triangle with sides of 5 cm, 5 cm, and 6 cm.

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

3       Let’s think about how to draw an equilateral triangle with sides that are 5 cm each.

4       Let’s draw many triangles using radii of the circle shown below.

D

C

A

B

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

Drawing Perpendicular and Parallel Lines

1       Draw a pair of perpendicular lines.

2

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

3       The lines below are parallel to each other. Draw several line segments that are
perpendicular to both and measure their lengths.

4

5       Draw a rectangle 5 cm long and 7 cm wide using two set squares.

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

Trapezoids, Parallelograms, and Rhombuses

1       Draw a trapezoid by drawing two parallel lines and 2 other lines.

2

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

3

4

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

Exploring Diagonals

1       Let’s investigate the characteristics of diagonals in quadrilaterals!
a. Compare the lengths of the two diagonals.
b. Compare the lengths of the four line segments between the intersection of
the diagonals and the four vertices.
c.   Compare the angles formed by the two diagonals at the point of
intersection.

Kennesaw State University
http://science.kennesaw.edu/~twatanab/Geometry.pdf
Geometry is a verb
Workshop @ 2009 NCTM

Congruent Triangles

Let’s draw B’C’ that is the same length as BC. Let’s think about different ways we can
find point A’.