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Measures of Variability (range, interquartile range, mean absolute deviation)


Subject: Math

Player Mode: Single

Grade: All

User Access: Student, Teacher



1. Learn that statistical questions are questions that have more than one answer.

2. Understand that a measure of variability summarizes the spread of data values with a single number.

3. Learn how to find the range, interquartile range, and mean absolute deviation.

4. Understand when each is most appropriate.


* Lesson (to develop a strong understanding of the math concept)

* Audio narration (to spend mental energy on math, not language)

* Animations (to bring theory to life)

* Interactivity (for hands-on learning)

* Dynamic models (to visualize abstract concepts with language-independent learning)

* Multiple representations (to appeal to different learning styles and to connect ideas together)

* Question set (to practice and to assess understanding)

* Built-in help (to assist in planning and delivery)

* Standards correlation (to align with state, NTCM, and Common Core)

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