Education Technology

# "Power"ful Patterns

Math: Elementary Math: Algebraic Thinking
K-5
60 Minutes
TI-15 Explorer™/TI-10
This is Activity 12 from the EXPLORATIONS Book:
Uncovering Math with Manipulatives, the TI-10, and the TI-15 Explorer

The following material is required for this activity:
• Pencils
Lessons

# "Power"ful Patterns

Activity Overview

Students investigate the relationship between multiplication with repeated factors and the use of exponents. Students will connect "powers of ten" to place value positions.

Before the Activity

• See the attached PDF file for detailed instructions for this activity
• Print student activity sheet page 58 from the attached PDF file for your class
• During the Activity

Distribute the page to the class.

Follow the activity procedures:

• Investigate a problem that requires multiplication of a repeated factor
• Use the calculator to perform the repeated multiplication
• Examine the use of the exponent key for multiplication of a repeated factor
• Record the data of repeated multiplication and multiplication using the exponent key in a table
• Compare the data and discuss the relationships between the two lists
• Understand the use of exponents
• After the Activity

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