From Patterns of Input and Output to Algebraic Equations

Learning Resource Type

Classroom Resource

Subject Area

Mathematics

Grade(s)

8

Overview

In this Cyberchase lesson, students will watch a video clip in which Hacker creates a cyberfrog with numeric buttons that produce different numbers of hops. The relationship between input and output values is used to teach students how to use algebraic expressions and, subsequently, equations. The entire lesson can be found using the Content Source link or each individual activity can be found in the Content Section.

Mathematics (2019) Grade(s): 8

MA19.8.13

Determine whether a relation is a function, defining a function as a rule that assigns to each input (independent value) exactly one output (dependent value), and given a graph, table, mapping, or set of ordered pairs.

UP:MA19.8.13

Vocabulary

  • Relation
  • Function
  • Input
  • Output

Knowledge

Students know:
  • how to interpret a graph, table, mapping, and ordered pairs.

Skills

Students are able to:
  • give an accurate definition of a function.
  • Analyze graphs, tables, mappings, and sets of ordered pairs to determine if a relation is a function.

Understanding

Students understand that:
  • Functions assign every input one output, but they may see outputs repeat.

CR Resource Type

Lesson/Unit Plan

Resource Provider

PBS

License Type

PD
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