Education Technology

Math TODAY for TI-Navigator System - More of U.S.

Activity Overview

Using the USA TODAY Snapshot, "More of U.S.," students will learn how to interpret data presented in a graphical form. Students will determine the rate of change (slope) and build a linear model (y = mx + b) from this data. The model will be used to make a prediction about the future growth of the U.S. population if the current trend continues.

Before the Activity

Setup your TI-Navigator™ System

  • Make sure you are familiar with the following functions: Send to Class, Collect from Class, Screen Capture, Quick Poll and Activity Center

  • Your students will need a TI-83 Plus or TI-84 Plus graphing calculator, either working in pairs or individually
  • Download the attached activity resource files from all three sections to your computer

  • Multimedia Projector for sharing the Activity Center, Quick Polls and Screen Captures with your students

  • TI Keyboards for students to easily answer the LearningCheck assessment questions

  • During the Activity

    Students will:

  • Find the rate of change (slope) for a given set of data
  • Determine a linear regression model from data
  • Predict an answer using the linear regression model
  • Use appropriate labels (units) for the rate of change
  • Create a scatter plot of the data

  • Directions
  • Distribute the Student Edition PDF file to your class
  • Follow the activity procedures outlined in the Teacher document
  • You may use the Graphic PDF file to display a large image of the USA TODAY graphic during the activity

  • After the Activity

    Access your students' understanding by using Send to Class, LearningCheck™ App and Class Analysis.