Education Technology

Crunching Numbers

Subject Area
Math: Elementary Math: Basic Facts
Math: Elementary Math: Math and Literature
Math: Elementary Math: Number Sense and Estimation
Math: Elementary Math: Number Operations
Level
K-5
Activity Time
60 Minutes
TI Calculator
TI-15 Explorer™/TI-10
Other Materials
    This is Activity 3 from the EXPLORATIONS Book:
    Math at Your Fingertips with the TI-10

    The following materials are required for this activity:
  • Book: The Cheerios Counting Book
  • Cheerios®
  • 2-ounce condiment cups
  • Wooden tongue depressors
  • Glue
  • Place value mats (made from 12"x 18" construction paper)
Resource Types
Lessons

Crunching Numbers

Activity Overview

Students learn to build and add two digit numbers. They connect number words and numerals.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • Print pages 33 - 44 from the attached PDF file for your class
  • During the Activity

    Distribute the page to the class.

    Follow the activity procedures:
    Activity A:

  • Show and read the Cheerios Counting Book to students


  • Activity B:
  • Pass out 100 Cheerios, cups, and place value mats
  • Call out a number
  • Students make the number and write the number on the mat
  • Using tens and ones, show how to add 2 digit numbers on the mat


  • Activity C:
  • Use the calculator to add 2-digit numbers
  • Identify the place value of the digits


  • Activity D:
  • Ask students to add some two-digit numbers with the help of Cheerios and re-grouping


  • Activity E:
  • Build and add 2-digit numbers with the help of the calculator
  • Write the numbers in place value language
  • After the Activity

  • Review student results
  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary
  • Subject Area
    Math: Elementary Math: Basic Facts
    Math: Elementary Math: Math and Literature
    Math: Elementary Math: Number Sense and Estimation
    Math: Elementary Math: Number Operations
    Level
    K-5
    Activity Time
    60 Minutes
    TI Calculator
    TI-15 Explorer™/TI-10
    Other Materials
      This is Activity 3 from the EXPLORATIONS Book:
      Math at Your Fingertips with the TI-10

      The following materials are required for this activity:
    • Book: The Cheerios Counting Book
    • Cheerios®
    • 2-ounce condiment cups
    • Wooden tongue depressors
    • Glue
    • Place value mats (made from 12"x 18" construction paper)
    Resource Types
    Lessons
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