Line Plots and Simple Graphs

Line Plots and Simple Graphs

What students learn

Students learn that line plots and bar graphs are both ways to show data clearly. Begin with Line Plots: Read and Make Data Marks so students can see how line plots organize measurement results.

Why it matters

Graphs help students spot patterns, compare groups, and explain what the data says. Use Bar Graphs: Read the Bars and Scale to show how bars and labels make comparison easy.

Learn the idea

A line plot is useful when the data comes from measurements, such as lengths. A bar graph is useful when the data is grouped into categories. Watch Bar Graphs: Solve Questions from Data to see how students use the graph to answer questions.

Try it

Measure a few classroom objects or compare favorite categories with a quick class survey. Then ask the student whether the result should be shown with a line plot or a bar graph and why. Have them explain one thing the graph tells them.

Parent guide

Collect simple data at home, such as favorite fruit, shoe sizes, or the length of a few household objects. Ask your child to decide which graph fits the data best. If they choose the wrong one, ask whether the data is measurement-based or category-based and help them try again.