# Activities

• • • ##### Subject Area

• Math: Elementary Math: Algebraic Thinking
• Math: Elementary Math: Number Sense and Estimation
• Math: Elementary Math: Math and Literature
• Math: Elementary Math: Number Operations

• ##### Author K-5

60 Minutes

• TI-10
• ##### Other Materials
This is Activity 6 from the EXPLORATIONS Book:
Math at Your Fingertips with the TI-10

The following materials are required for this activity:
• Book: My Little Sister Ate One Hare
• Grid paper
• Markers
• Scissors
• Glue or tape
• Picture cut-outs of items eaten in story
• Manipulatives to represent items in story

## Amazing Appetites

#### Activity Overview

Students learn to count and solve original word problems. They learn to add by combining sets and subtract when removing the set. They use manipulatives to reflect the reasoning used in problem solving.

#### Before the Activity

• See the attached PDF file for detailed instructions for this activity
• Print pages 63 - 72 from the attached PDF file for your class
• #### During the Activity

Distribute the page to the class.

Activity A:

• Discuss the different creatures in the book
• Read the book to the class, and construct a list of items and the number of items eaten
• Discuss the chart with the students

• Activity B:
• Use manipulatives, the calculator, and the class chart to solve word problems
• Demonstrate problem solving strategies and calculator keystrokes

• Activity C:
• Use manipulatives, the calculator, and the class chart to solve word problems
• Discuss the solutions to the problems

• Activity D:
• Solve more word problems using words, pictures, and numbers
• Share solutions and demonstrate how the problem can be solved using the calculator
• #### After the Activity

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