Ask Questions That Anticipate Variation
Identify whether the question expects varied data.
About 25 minutes, plus any extended practice
Open lesson 1Ask Statistical Questions and Summarize Distributions
Recognize variability, display data, measure center, and compare spread with IQR and MAD.
Before you begin
- Read line plots and numerical records; divide and compare rational numbers.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Compare Mean and Median as Centers
Compute total divided by observation count for the mean.
About 25 minutes, plus any extended practice
Open lesson 2Use Quartiles and Interquartile Range
Sort the supplied eight-value record, find the medians of its lower and upper four values, then subtract Q1 from Q3.
About 25 minutes, plus any extended practice
Open lesson 3Use Mean Absolute Deviation to Compare Spread
Calculate the record’s mean, find each absolute distance from it, then average those distances.
About 25 minutes, plus any extended practice
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.
Topic references
- Common Core State Standards, mathematics: 6.SP.A.1 — Recognize variability, display data, measure center, and compare spread with IQR and MAD.
- Common Core State Standards, mathematics: 6.SP.A.2 — Recognize variability, display data, measure center, and compare spread with IQR and MAD.
- Common Core State Standards, mathematics: 6.SP.A.3 — Recognize variability, display data, measure center, and compare spread with IQR and MAD.
- Common Core State Standards, mathematics: 6.SP.B.4 — Recognize variability, display data, measure center, and compare spread with IQR and MAD.
- Common Core State Standards, mathematics: 6.SP.B.5 — Recognize variability, display data, measure center, and compare spread with IQR and MAD.
These references informed the topic selection. They do not certify complete standards alignment.