Students will investigate exponential functions and their graphs using real-life data. Students will analyze population data for the United States and create an exponential model for the scatter plot.
Before the Activity
If you are using the TI-Navigator System™ with the TI-73 Explorer™ you will need the attached .pdf file.
See the attached Teacher Edition PDF file for notes and guidelines for this activity. The Technology Guide PDF file includes step-by-step calculator instructions with screen shots.
If you are using the TI-Navigator™ Classroom Learning System, see the TI-Navigator Basic Skills Guide PDF file for information on how the system can be integrated into your activity.
During the Activity
Explore population data and create an exponential function to model the growth in the population data.
Use the model to estimate the population for a given year and will estimate the year for a given population.
Compare the estimated value to the given value by determining the percent error.
Distribute the Student Edition PDF file to your class.
Follow the activity procedures outlined in the student document.
You may use the Transparency PDF file to display a large image of the USA TODAY graphic during the activity.
After the Activity
Distribute the assessment questions or send the attached LearningCheck™ assessment to your class to gauge student understanding of the concepts presented in the activity.