# 3 Act Math Tasks

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

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

# Grade 7

## 7.G.4

**Overall Expectation Description:**

## 7.G.4 – Grade 7 – Geometry

Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.

Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.

## Related 3 Act Math Tasks:

## Cookie Cutter

### How many more cookies could be made with the leftover dough?

**Shared By:**

Kyle Pearce

**Math Topic:**

Finding area of composite figures; in particular, we will be problem solving using the area of a rectangle and the area of a circle.

**Common Core State Standard Alignment:**

## Snipping Straws

### What's the length of your snipped straw?

**Shared By:**

Kyle Pearce

**Math Topic:**

Solving equations involving area of a circle.

**Common Core State Standard Alignment:**

## Brita

### How many times would all the water bottles used in the US in a year wrap around the world?

**Shared By:**

Dan Meyer

**Math Topic:**

Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.

**Common Core State Standard Alignment:**

## Holes

### How much extra dirt will Stanley have to dig after a year?

**Shared By:**

Dan Meyer

**Math Topic:**

Draw construct, and describe geometrical figures and describe the relationships between them. Solve real-life and mathematical problems involving angle measure, area, surface area, and volume. Analyze proportional relationships and use them to solve real-world and mathematical problems.

**Common Core State Standard Alignment:**

## Coin Carpet

### If you were going to carpet the room with a single kind of coin, which would be the cheapest option?

**Shared By:**

Dan Meyer

**Math Topic:**

Solve real-life and mathematical problems involving angle measure, area, surface area, and volume. Analyze proportional relationships and use them to solve real-world and mathematical problems.

**Common Core State Standard Alignment:**

## Pizza Doubler

### If you'd like the most pizza, which coupon should you use?

**Shared By:**

Dan Meyer

**Math Topic:**

Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.

**Common Core State Standard Alignment:**

## Popcorn Picker

### Which container will hold more popcorn?

**Shared By:**

Dan Meyer

**Math Topic:**

Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.

**Common Core State Standard Alignment:**

## Coffee Traveler

### What will the water level look like now?

**Shared By:**

Dan Meyer

**Math Topic:**

Identify the shapes of two-dimensional cross-sections of three-dimensional objects, and identify three-dimensional objects generated by rotations of two-dimensional objects.

**Common Core State Standard Alignment:**

## Penny Circle

### Guess how many pennies the big circle will hold.

**Shared By:**

Dan Meyer

**Math Topic:**

Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.

**Common Core State Standard Alignment:**

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