# Posts tagged 9th-12th Mathematics

## Look for and express regularity in repeated reasoning.

Mathematically proficient students notice if calculations are repeated, and look both for general methods and for shortcuts.

## Look for and make use of structure.

Mathematically proficient students look closely to discern a pattern or structure.

## Attend to precision.

Mathematically proficient students try to communicate precisely to others.

## Use appropriate tools strategically.

Mathematically proficient students consider the available tools when solving a mathematical problem.

## Model with mathematics.

Mathematically proficient students can apply the mathematics they know to solve problems arising in everyday life, society, and the workplace.

## Construct viable arguments and critique the reasoning of others.

Mathematically proficient students understand and use stated assumptions, definitions, and previously established results in constructing arguments. They make conjectures and build a logical progression of statements to explore the truth of their conjectures.

## Inappropriate Data Usage

CC.9-12.S.ID.9 – Distinguish between correlation and causation.

## Scatter Plots

CC.9-12.S.ID.6a – Fit a function to the data; use functions fitted to data to solve problems in the context of the data.

## Using Measures of Central Tendency

CC.9-12.S.ID.2 & CC.9-12.S.ID.3 – Use statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range, standard deviation) of two or more different data sets.