Education Technology

# Activities

• ##### Subject Area

• Math: Geometry: Circles
• Math: Geometry: Quadrilaterals and Polygons

6-8
9-12

60 Minutes

• ##### Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition
• TI-Navigator™
• ##### Software

LearningCheck™ Creator
TI Connect™

• ##### Accessories

TI Connectivity Cable

• ##### Other Materials
For more information on the Prentice Hall mathematics series, visit them on the web at phschool.com.

## Perimeter, Circumference, and Area

#### Activity Overview

Students find perimeters of rectangles and squares, as well as circumferences of circles. Students find areas of rectangles, squares, and circles.

This Activity comes from Prentice Hall's © 2007 Geometry textbook.

#### Before the Activity

• Review the lesson PDF files
• Make copies of the lesson PDF files for your class
• Using LearningCheck Creator, review the LearningCheck™ EDC files prior to class. They include Check Skills You'll Need and Check Understanding questions from the lesson
• Make sure the LearningCheck App is on all student calculators
• Transfer the LearningCheck EDC files and Program file to student calculators using one of these methods:
• LearningCheck Creator "send to device" feature with a connectivity cable and unit-to-unit cables
• TI Connect, a connectivity cable and unit-to-unit cables
• TI-Navigator "send to class" feature

#### During the Activity

Students will:

• Find the perimeter and area of rectangles and triangles using graph paper and a graphing calculator.
• Find the circumference and area of circles in terms of pi and using a graphing calculator.
• Find the area of irregular shapes.
• Estimate the perimeter and area of real-world objects.

• Directions:
• Distribute the student activity sheets.
• Follow the procedures as outlined.
• #### After the Activity

As a class, review student progress, discussing questions that appeared to be more challenging, and re-teaching as needed.