## Squares to Compare

### Michael Marzano

#### Description

In this lesson the students learn how to draw and classify two and three dimensional figures (squares, triangles, rectangles.)

#### Objectives

The student draws and classifies two-dimensional figures having up to ten or more sides and three-dimensional figures (cubes, rectangular prisms, pyramids).

#### Materials

-Pencils
-Paper
-Scissors
-Tape
-Computers
-Graph paper
-Plastic squares and retangular shapes (for tracing)
-Colored blocks (cubes)
-Lined paper
-Worksheet #1 (see associated file)
-Drawing software

#### Preparations

1. Use the current Math text book review the section on geometric figures.
2. Gather materials and duplicate the worksheet in the file for each student.

#### Procedures

1.Using a PowerPoint presentation (or another software program), create a square verses a cube illustration. Explain to the students what are the differences between a square and cube noting the two and three dimensional properties. Include demonstrating sides and edges of the 2D and 3D figures.

2.Paper and pencils will be passed out to students and they will be use them to draw a square. As students complete the following tasks, circulate and offer feedback and assistance.

3.The students will count how many sides make up a square and note that on the paper.

4.The students will then be asked to draw other 4 sided figures and label each shape. You may need to elicit the names of other 4 sided figures. (parallelogram, trapezoid, rectangles, irregular polygons)

5. Pass out cubes and have each student take one to examine and note how many sides it contains.

6. Ask the students to make several hypotheses correlating the number of sides and edges to determine the difference between a two figure and three figure dimensional object.

7.After discussing the relationship between a two and three dimensional shape, students will use the information to now create their own two and three dimensional figure using graph paper, a tracing block, scissors, pencils, and tape.

8.On lined paper, students will write one or two sentences describing the properties that determine what the differences are between the objects they created.

9. Pass out worksheet # 1 for students to complete.

#### Assessments

Students will complete worksheet #1 (see associated file) and correctly score at least 80% correct. Students who do not show a mastery of the concept by scoring 80% or more will need additional feedback and practice.

#### Attached Files

The worksheet and the answer key.     File Extension: pdf