Lesson objective: Understand that measurement data can be displayed on a line plot.

Students bring prior knowledge of measurement and data collection from 2.M.A.1. This prior knowledge is extended to displaying collected data in a line plot as students measure objects to collect data, and then display the data in a line plot. A conceptual challenge students may encounter is thinking that when transferring the data collected to a line plot, students may believe measurements recorded more than once only need to be represented on the line plot one time.

The concept is developed through work with a line plot, which allows students to organize and display the data they created.

This work helps students deepen their understanding of numbers because students are asked to use whole numbers in measuring and also in representing their data on a line plot.

Students engage in Mathematical Practice 1 (Students will make sense of problems and persevere in solving problems by generating, collecting, and interpreting data) as they measure and record the length of students' pencils and then display the collected data on a class line plot.

**Key vocabulary:**

- data
- display
- graph title
- line plot

**Special materials needed:**