# Activities

• • • ##### Subject Area

• Math: Middle Grades Math: Problem Solving

• ##### Author 6-8

60 Minutes

• ##### Device
• TI-73 Explorer™
• ##### Other Materials
This is Activity 6 from the EXPLORATIONS Book:
Discovering Mathematics with the TI-73: Activities for Grades 5 and 6

The following materials are required for this activity:
• Square color tiles
• Crayons
• ##### Report an Issue

How Totally Square!

#### Activity Overview

Students make a variety of sizes of squares using square color tiles. With the squares, the students discover patterns and make prediction. They explore and understand the concept of square numbers.

#### Before the Activity

• Set up the calculator as explained in the activity
• See the attached PDF file for detailed instructions for this activity
• Print pages 27 - 30 from the attached PDF file for your class
• #### During the Activity

Distribute the pages to the class.

• Use square colored tiles with the dimension 1 unit by 1 unit to build larger squares
• Draw the squares on graph paper
• Examine the relationship between the total number of tiles and the side length of each square
• Write the pattern using x and y
• Label the side length of the square as x, and the total number of tiles as y
• Observe that x2 = y
• Discuss square numbers
• Use the calculator to create a table of square numbers
• #### After the Activity

Students complete the Student Activity sheet.

Review student results:

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary