Day 148 Mean Absolute Deviation Intro

6th Grade Math Standards: Summarize numerical data sets in relation to their context, such as by: a. Reporting the number of observations. b. Describing the nature of the attribute under investigation, including how it was measured and its units of measurement. c. Giving quantitative measures of center (median and/or mean) and variability (interquartile range and/or mean absolute deviation), as well as describing any overall pattern and any striking deviations from the overall pattern with reference to the context in which the data were gathered. d. Relating the choice of measures of center and variability to the shape of the data distribution and the context in which the data were gathered.

Quote of the Day: It was a very long quote about the life of a child to slave parents who started a school by the name of Mary Bethune.

Question from Yesterday (as always from a student): Why is that a product can be smaller than a factor?

The Learning Objective: Describe measures of central tendency and variation based on a data display

Assessment: Clickers, self-assessment form

Agenda:

1. Self-Assessment
2. QSSQ
3. Quiz Review
4. Clickers (combining like terms, identifying a coefficient, reflecting a point across an axis, determining a ratio, and identifying the formula to find the circumference of a circle). 
5. Pepper
6. M.A.D. Introduction

Glass Half-Full: On identifying a coefficient, determining what formula to use to find the circumference of a circle, and determining a ratio my classes were more than 80% correct.

Regrets: Students were sitting in groups of four today during the mean absolute deviation lesson and really should have been sitting in rows because it is a large deal of direct instruction. Whenever I was talking it seemed like every student just tuned me out. I need to use simpler numbers perhaps and just do several examples with them instead of one giant example.

Link of the Day: Football analytics form Ravens linebacker John Urschel.