Lesson objective: Calculate the mean, median, and mode using dot plots and bar charts.
This lesson provides an opportunity for students to apply their knowledge and understanding of measures of central tendency to a reallife situation. Students are asked to compare one students' height to the heights of her classmates.
Key Concept students will use:
 The set of numerical values in a data set can be summarized by a measure of center (median and arithmetic mean).
Skills students will use:

Represent and interpret data (Grade 4, Unit 9)
 Calculate the mean, median, and mode
Students engage in Mathematical Practice 3 (Model with Mathematics) as they use a dot plot to generate a dataset, summarize the central tendency of the dataset with a single number, and use the measure of central tendency to compare it to a different value.
Key vocabulary:
 dot plot
 mean
 measures of central tendency
 median
 mode
Special materials needed:
 None