Representing Data

Overview

Your student will be learning:

that organizing data in a frequency table makes it easier to see patterns in data.

Example: This frequency table lists the number of students that chose tacos or burgers as their favorite food.

a dot plot organizes data on a number line and is useful for visually showing how data is distributed.

Example:

This dot plot shows the number of pets students have at home. (4 students have 1 pet, 6 students have 2 pets, etc.)

pictographs and bar graphs make it easy to compare data.
the key for a pictograph determines the number of pictures needed to represent each number in a set of data.

Example: For this pictograph each ice cream cone equals 3 students, so 9 students chose chocolate as their favorite ice cream flavor.

the scale in a bar graph determines how long the bar needs to be to represent each number in a set of data.

Example: The scale on this bar graph is in increments of 10.

Videos
- Frequency tables and Dot plots. This video from Khan Academy shows how to use the ages of students in a classroom to create a frequency chart and a dot plot. Note: The skill of finding range is not taught in 3rd grade.
Free Apps

This self-paced game provides games for various skills, including measurement and data.

*Limited daily access.

Websites
- Pictograph. This step-by-step interactive video by StudyJams.com demonstrates how to create a pictograph. It includes practice problems for your child to interpret pictographs.

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