8.F.A.1

Function Jump!

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Game Info for Teachers

COMBINED RATING

4.0 Stars

TEACHERS (59)

4.5

STUDENTS (5462)

3.5

LENGTH

27 Minutes

GRADES

CAPABILITIES

Spanish Language Support

Text-to-Speech Support

Description

Our intrepid Technician is blocked on his way to the pantry by the malicious P.A. System! Learn about functions, rules, input, output, and coordinate pairs as you help Technician navigate the confounding hallways of this suspicious facility. Will Technician ever get to his grilled cheese sandwich?

Vocabulary Words

Cartesian Grid

plot

coordinate pairs

table

values

pairs

values

formula

rule

outputs

inputs

rule

inputs

function

Instructions

Play through this interactive game to learn about Understanding Functions. Suitable for Grade 6, Grade 7, Grade 8.

Main Concepts

The Input and Output relationship in a function table can be expressed as a graph on a co-ordinate plane where (input, output) is equivalent to (x, y) where the input is the x value and the corresponding output is the y value.

Numbers in a function table prior to rule being applied are called the Inputs.

Determine whether coordinate pairs plotted on a graph show a function based upon number of outputs for each input.

The operation/s that are applied to the input are called the Rule.

A Function is a Rule applied to inputs that yield exactly one output.

Numbers in a function table after the Rule is applied are called the Outputs.

There is exactly one output for every input.

A coordinate pair is an exact location on a Cartesian Grid.

A coordinate pair is expressed as an (x, y) coordinate in which the x value determines the location of a point along the x – axis or horizontal axis and the y value as the location of the point along the y – axis or vertical axis of a Cartesian Grid.

Determine whether a table is a function based upon the number of outputs for an input.

Discussion Questions

Before the Game

When looking at a coordinate pair, what do the numbers mean? What are coordinates used for in everyday life? Explain where the x and y lines are located on a graph?

After the Game

Explain how you knew how to plot the coordinate plots in the game? How were you able to tell if the game showed you a function or not? Explain how you solved problems in the equation x=2y-4 when given a number for x? What is the difference between a relationship that is a function and a relationship that is not a function?

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