Education Technology

• ##### Device
• TI-Nspire™ CAS
• TI-Nspire™ Navigator™
• TI-Nspire™ Apps for iPad®
• ##### Software

TI-Nspire™ CAS
TI-Nspire™ CAS Navigator™ NC System

ACMMM023

4.0

# QLD (Nspire): Domain, Range and Function Mapping

by Texas Instruments

#### Objectives

Understand the concept of a function as a mapping between sets, and as a rule or a formula that defines one variable quantity in terms of another.

#### Vocabulary

Mapping, domain, range

#### About the Lesson

Students start by exploring ordered points plotted on the Cartesian plane determining the domain and range. A dynamic representation showing the mapping between the sets is then provided to gain a better understanding of the mapping and then a function machine. Upon completing the discrete examples students are provided graphical examples. Finally students work backwards from a given domain and range students build a function that satisfies the prescribed conditions and summarising their findings for the different mapping options: one to one, many to one, one to many and many to many.