Students learn three ways to find the “typical” value in a data set — the mean (average), the median (middle), and the mode (most common) — plus the range that shows how spread out the data is.
Students will be able to…
Five friends scored 4, 7, 7, 2, and 10 on a game. What’s the “typical” score — and why is there more than one way to answer?
Project this and move the sliders to change the data. Watch the mean, median, mode, and range update as the bars change.
Move the sliders to change the data. Watch the mean, median, and mode change!
Tap any phase to open the teacher moves and student actions.
Scores 4, 7, 7, 2, 10 — what’s the “typical” one?
Teacher models.
Class drives the Data Explorer.
Students find measures.
One data set.
Aligned to the Common Core State Standards for Mathematics, including the Standards for Mathematical Practice.
Give quantitative measures of center (median, mean) and variability (range).
Understand that a set of data has a distribution described by center, spread, and shape.
Recognize that measures of center summarize data with a single number.
Summarize numerical data sets in relation to their context.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students compute the mean and median, then add one very large value and see which measure changes more. A printable data-analysis sheet is in the Math library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.