Stats and the Redesigned SAT

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Presentation transcript:

Stats and the Redesigned SAT Lindsey Gallas and Luke Wilcox East Kentwood High School www.TheStatsMedic.com/CMC2017

The Redesigned SAT What’s new? It is focused on the skills that are most needed during the first year of college. The Heart of Algebra Problem Solving and Data Analysis Passport to Advanced Mathematics Additional Topics in Math Problems grounded in real-world contexts. Calculator/No Calculator sections

Math Content Areas on SAT Heart of Algebra 19 Questions 33% Problem Solving and Data Analysis 17 Questions 29% Passport to Advanced Mathematics 16 Questions 28% Additional Topics in Mathematics 4 Questions 10%

Course Changes Geometry Cuts Data Analysis Additions Perpendicular bisectors and angle bisectors in triangles (centroid, circumcenter, orthocenter, etc.) Properties of quadrilaterals and the Quadrilateral Hierarchy Data Analysis Additions One Variable Data Two Variable Data Probability Sampling and Inference

One Variable Statistics Describe, analyze and interpret graphs. Calculate and interpret measures of center (mean, median) Calculate and interpret measures of center (range and standard deviation)

Two Variable Statistics Describe and analyze scatterplots. Calculate linear regression models. Interpret slope and y-intercept. Analyze data to determine which regression model is best.

Probability Calculate and understand basic probability rules. Use general addition rule for probability for “OR” problems. Calculate conditional probabilities using two-way tables.

Sampling and Inference Identify samples and populations. Make decisions about the population using sample data. Understand sampling variability. Interpret the margin of error. Random sample vs. random assignment.

Summary How were these lessons different from a traditional math lesson? Big Ideas: Accessibility Context and relevance Experience first, formalize later Flexible thinking

Resources To get digital copies of all handouts, go to TheStatsMedic.com/CMC2017. Contact: Email: Lindsey@TheStatsMedic.com and Luke@TheStatsMedic.com Website: TheStatsMedic.com Twitter: @TheStatsMedic Facebook: TheStatsMedic