Lesson 13

More Standard Deviation

Lesson Narrative

One purpose of this lesson is to introduce students to the Info Gap routine. Students deepen their understanding of standard deviation by interpreting it in various contexts. Students expand on the work from previous lessons by seeing the standard deviation in various contexts. The work of this lesson connects to upcoming work because students will continue to examine how variability, along with the context of a problem, can help determine whether data are outliers and what to do with these values.

Interpreting standard deviation in context is evidence that students are reasoning abstractly and quantitatively (MP2). The information gap activity may take students several rounds of discussion to make sense of and gain the information they need to solve the problem (MP1). The information gap structure also allows them to refine the language they use and ask increasingly more precise questions until they get the information they need (MP6).


Learning Goals

Teacher Facing

  • Describe (orally and in writing) the meaning of standard deviation in context.

Student Facing

  • Let’s continue to interpret standard deviation.

Required Preparation

Print and cut up slips from the blackline master. Prepare 1 copy for every 2 students.

Learning Targets

Student Facing

  • I can use standard deviation to say something about a situation.

CCSS Standards

Building On

Addressing

Building Towards

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