Using data from the USA TODAY graphic "Humidity makes air feel hotter" students will explore linear functions to determine how well they model the relationship between air temperature and heat index. When the model has been determined students will use the model to make predictions about the heat index when given a specific temperature.
Before the Activity
If you are using the TI-Navigator System with the TI-73 you will need the attached .pdf file.
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
Model real-world data with linear functions
Create scatterplots using real-world data
Compare data in graphical and numerical form
Analyze rate of change
Understand patterns, relations, and functions
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.