Education Technology

# Activities

• ##### Subject Area

• Math: Algebra I: Data Analysis
• Math: Middle Grades Math: Statistics and Probability
• Math: PreAlgebra: Probability, Statistics and Data Analysis
• Math: Statistics: Data Analysis

9-12

45 Minutes

• TI-30X IIB
• TI-30X IIS
• ##### Other Materials

This is Activity 2 from the EXPLORATIONS Book: Math Investigations with the TI-30X IIS: Activities for Secondary Mathematics.

## Measures of Central Tendency Using Scientific Calculators

#### Activity Overview

Concepts and skills covered in this activity include:

• Modeling mathematics in real-world problem situations
• Relating procedures in equivalent representations in different contexts
• Understanding and applying the measures of central tendency
• #### Before the Activity

• See the attached PDF file for detailed instructions for this activity.
• Print pages 18-20 from the attached PDF file for your class
• #### During the Activity

Students will:

• Learn to make sense of data by using the three measures of central tendency mean, median, and mode. They will use the calculator to find the mean of a set of data.
• #### After the Activity

• Review student results
• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary