Lesson: Range of a Data Set Mathematics • 6th Grade

In this lesson, we will learn how to find the range of a data set.

Lesson Plan

Objectives

Students will be able to

find the range of a data set,
find the largest element of a set when given the smallest element and the range,
find the smallest element of a set when given the largest element and the range,
understand that the range of a data set can be used as a measure of spread (dispersion).

Prerequisites

Students should already be familiar with

set notation,
representing data graphically,
the terms measure of center and measure of spread.

Exclusions

Students will not cover

quartiles,
interquartile range,
calculating measures of center,
skew,
standard deviation,
variance.

Lesson Video

Lesson Explainer

Sample Question Videos

02:11
03:15
02:02

Lesson Worksheet

Q1:

What is the name of the difference between the greatest and the smallest values of a data set?

Q2:

The number of goals scored by twelve soccer players in a season are 13, 11, 12, 5, 5, 9, 6, 11, 8, 5, 6, and 19. State whether the following statement is true or false: The range of the data is 14 goals.

Q3:

Average temperatures were recorded throughout a week starting from Saturday to Friday. The temperatures were , , , , , , and , respectively. Find the difference between the highest and lowest temperatures.