NAME ______________________________ DATE _______________

FAMILY LETTER

(PAGE 1 OF 2)

About the Mathematics in This Unit

Dear Family,

Our class is starting a new mathematics unit about geometry and measurement called Properties of Polygons. During this unit, students investigate the classification of polygons by attributes such as length of sides and size of angles. They solve problems about perimeter, a linear measure, and area, a two-dimensional measure.

Throughout the unit, students work toward these goals:

Benchmarks/Goals	Examples
Classify polygons by their attributes, and know that some quadrilaterals can be classified in more than one way.	Which of these figures are parallelograms? How do you know? d Figures 13, 22, and 27 are parallelograms. Each of these figures has two pairs of parallel sides.
Identify and explain numerical patterns when comparing perimeters or areas of related rectangles.	d

Table of Contents