Education Technology


Just How Many are There?

Activity Overview

This activity introduces students to the concept of using proportional reasoning to estimate the size of an animal population.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • During the Activity

    Students will:

  • Understand numbers, ways of representing numbers, relationships among numbers, and number systems
  • Understand and use ratios and proportions to represent quantitative relationships
  • After the Activity

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