Activities

Download
- Download All Files (ZIP)
- Before the Activity Files
- Teacher Notes PDF
- Multiply and Divide.edc
- Estimate.act
- Sum_Difference.act
Alignment
- Standards Alignment
- Textbook Alignment
Subject Area
- Maths: Elementary Math: Number Sense and Estimation
- Maths: Middle Grades Math: Number Sense
- Maths: PreAlgebra: Number Sense and Operations
Author

Texas Instruments
Level

6-8
Activity Time

20 Minutes
Device
- TI-73 Explorer™
- TI-Navigator™
Software

LearningCheck™ Creator
TI Connect™
Applications
- LearningCheck™ for TI-83 Plus and TI-84 Plus
Accessories

TI Connectivity Cable
Unit-to-Unit link cables
Other Materials

This is Activity # 15 from Getting Started with
TI-Navigator™ System: Middle Grades
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Estimating with Rational Numbers

Activity Overview

Students will round fractions and mixed numbers, and then use their rounding skills to estimate sums, differences, products, and quotients.

Before the Activity

See the attached PDF file for detailed instructions for this activity

During the Activity

Students will:

Compute fluently and make reasonable estimates

Develop and use strategies to estimate the results of rational-number computations and judge the reasonableness of the results

After the Activity

Review student answers

As a class, discuss questions that appeared to be more challenging

Re-teach concepts as necessary

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Download

Before the Activity Files

Alignment

Subject Area

Author

Level

Activity Time

Device

Software

Applications

LearningCheck™ for TI-83 Plus and TI-84 Plus

Accessories

Other Materials