Content Area: Math

 

Index: 4.2A Grade 5 CPI 2

 

Standard: 4.2 - Geometry and Measurement

 

Strand: A - Geometric Properties

 

Cumulative Progress Indicator: 4 -The student will understand and apply the concepts of congruence and symmetry (line and rotational).

 

Grade: 5

 

Sample Activities:

 

·        Students look for examples of congruent figures (same size and shape) in the environment.

 

·        Students explore symmetry by looking at the designs formed by placing a mirror on a pattern block design somewhere other than the line of symmetry, or by folding paper more than one time. They identify the symmetry in wallpaper or giftwrap designs. They also identify the rotational symmetry found in a pinwheel (e.g., 90 degrees). (The figure matches itself by turning rather than by flipping or folding.)

 

Kidspiration Activity:

 

·        Use the Shape Maker tool to demonstrate an understanding of congruence and symmetry.