Lesson objective: Understand that a graph can help us describe the center, shape, and spread of a dataset.

Students bring prior knowledge of representing and interpreting data from 4.MD.B.4. This prior knowledge is extended to summarizing data displays as students informally describe the center, spread, and shape of dot plots. A conceptual challenge students may encounter is making inferences and conclusions based on the center, shape, and spread of the dataset.

The concept is developed through work with dot plots, which allow students to visualize the center, spread, and shape with a familiar data display.

This work helps students deepen their understanding of number because identifying the center, spread, and shape on a dot plot requires students to read number lines.

Students engage in Mathematical Practice 4 (model with mathematics) as they analyze dot plots to summarize datasets with words and numbers.

**Key vocabulary:**