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Instructor Overview

Students explore what makes a math trick work by analyzing verbal math expressions that describe each step in the trick.

Key Concepts

  • Words can be used to describe mathematical operations.
  • In a math trick, a person starts with a number, follows mathematical directions given in words, and ends up with the original number.
  • Math tricks can be explained by examining the mathematical expressions that represent the verbal directions.

Goals and Learning Objectives

  • Explore verbal expressions.
  • Predict and test which sets of expressions will result in the original number.