# 3 Act Math Tasks

## Organized by the Common Core States Standard (CCSS) Initiative

**Not Common Core? Go to Ontario Curriculum alignment**

# Practice

## MP.2

**Overall Expectation Description:**

MP.2 – Standards of Mathematical Practice

Reason abstractly and quantitatively.Mathematically proficient students make sense of quantities and their relationships in problem situations. They bring two complementary abilities to bear on problems involving quantitative relationships: the ability to decontextualize—to abstract a given situation and represent it symbolically and manipulate the representing symbols as if they have a life of their own, without necessarily attending to their referents—and the ability to contextualize, to pause as needed during the manipulation process in order to probe into the referents for the symbols involved. Quantitative reasoning entails habits of creating a coherent representation of the problem at hand; considering the units involved; attending to the meaning of quantities, not just how to compute them; and knowing and flexibly using different properties of operations and objects.

## Related 3 Act Math Tasks:

## Massive Mosaic

### How many tiles are there in that mosaic?

**Shared By:**

Kyle Pearce

**Math Topic:**

Multiplication, Proportional Reasoning

**Common Core State Standard Alignment:**

## Donut Delight

### How many doughnuts are there?

**Shared By:**

Brennan Jones

Brian Marks

Graham Fletcher

Kyle Pearce

Mike Wiernicki

**Math Topic:**

Multiplication, Division, Proportional Reasoning

**Common Core State Standard Alignment:**

## You Pour, I Choose

### Which glass contains more soda?

**Shared By:**

Dan Meyer

**Math Topic:**

Explain volume formulas and use them to solve problems.

**Common Core State Standard Alignment:**

## Yellow Starbursts

### How many Starburst packs have exactly one yellow Starburst? Two yellow Starbursts?

**Shared By:**

Dan Meyer

**Math Topic:**

1) Use random sampling to draw inferences about a population and 2) investigate chance processes and develop, use, and evaluate probability models.

**Common Core State Standard Alignment:**

## 25 Billion Apps

### When should you start bombarding the App Store with purchases if you want to win?

**Shared By:**

Dan Meyer

**Math Topic:**

Use functions to model relationships between quantities.

**Common Core State Standard Alignment:**

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