Lesson 15 Create Line Plots

    • Let’s represent data in line plots.

Warm-up Number Talk: Subtraction within 50

Find the value of each expression mentally.

Activity 1 Measure and Plot Pencil Lengths

A pile of pencils of various lengths and colors.

  1. Measure the pencils in centimeters. Work with a partner and check each other’s measurements. Record each measurement in the table.

    pencil length (cm)

  2. Create a line plot to represent the lengths of all the pencils in your group.

    Blank line plot.

Activity 2 Plot Pencil Lengths

Line plot titled Group A's Pencils from 0 to 20 by ones. Horizontal axis, labeled length, in centimeters. Beginning at 14, the number of X’s above each increment is 2, 4, 1, 2.
Line plot titled Group B's Pencils from 12 to 18 by ones. Horizontal axis, labeled length, in centimeters. Beginning at 14, the number of X’s above each increment is 2, 4, 1, 2.

Group C

pencil length (centimeters)

Andre

Clare

Diego

Elena

Han

Jada

Kiran

Noah

Priya

Tyler

Use this data to create a line plot.

Unlabeled line plot with 11 evenly spaced tick marks.

Practice Problem

Problem 1

The line plot shows the lengths of some pencils in centimeters.

 Line plot from 0 to 14 by ones. Horizontal axis labeled pencil length, in centimeters. Beginning at 5, the number of x’s above each increment is 2, 3, 4, 3, 2, 0, 1.

  1. How long is the longest pencil? How long is the shortest?

  2. What is the most common pencil length?