# Activities

• ##### Download

• • ##### Subject Area

• Math: Elementary Math: Algebraic Thinking
• Math: Elementary Math: Number Operations

• ##### Author K-5

60 Minutes

• ##### Device
• TI-10
• TI-15 Explorer™
• ##### Other Materials
This activity originally appeared in the EXPLORATIONS Book:
Uncovering Math with Manipulatives, the TI-10, and the TI-15 Explorer

## Patterns in Counting with Decimals

#### Activity Overview

Students use the calculator to represent decimals and to recognize patterns in the number symbols.

#### Objectives

Students will explore the following concepts in this activity:

• patterns
• decimals
• place value
• addition
• comparing decimals

#### About the Lesson

Distribute the student activity sheet to the class, which contains a 10 x 10 gird. Ask students:

If the entire grid is worth one dollar, how much is each square worth? Help students connect their understanding of one cent to a dollar.

Have students work in pairs. Have the first partner fill in the first blank after the single square with the fraction 1/100 th
and the second blank with a decimal symbol (0.1) for one-hundredth. Finally, challenge the students to find as many patterns as they can in each of the labeled grids and record the patterns on their activity sheets.