# Ontario Grade 8 - 3 Act Math Tasks

## Real World Math for Common Core and Ontario Curriculum

**CCSS:**- Grade 3
- Grade 4
- Grade 5
- Grade 6
- Grade 7
- Grade 8
- Algebra
- Functions
- Geometry
- Statistics
- Practice

The following list of

**3 Acts Real World Math Problems**for Grade 8 Mathematics in Ontario.

## Related 3 Act Math Tasks:

## Solar Panels

### How much greenhouse gas emissions can they offset?

**Shared By:**

Kyle Pearce

**Math Topic:**

Proportional reasoning, proportions, direct variation linear relations

**Ontario Curriculum Alignment:**

**Common Core State Standard Alignment:**

## Calvin’s Clearance

### What is the sale price?

**Shared By:**

Kyle Pearce

**Math Topic:**

Percentages and Discounts

**Ontario Curriculum Alignment:**

**Common Core State Standard Alignment:**

## Fast Clapper

### Will he beat the record?

**Shared By:**

Nathan Kraft

**Math Topic:**

Ratios, Rates, and Proportional Reasoning.

**Ontario Curriculum Alignment:**

**Common Core State Standard Alignment:**

## Railing Reconstruction

### What is the angle measure of the missing angle?

**Shared By:**

Kyle Pearce

**Math Topic:**

Geometry and Spatial Sense, angle geometry, opposite angle theorem, parallel lines cut by a transversal.

**Ontario Curriculum Alignment:**

**Common Core State Standard Alignment:**

## Penny a Day

### Which would you rather: $1 Million or a Penny a Day, Doubled for a Month?

**Shared By:**

Kyle Pearce

**Math Topic:**

Exponents, exponential notation, exponential relations, exponential functions.

**Ontario Curriculum Alignment:**

**Common Core State Standard Alignment:**

## Hot Coffee

### How many gallons fit into that coffee cup?

**Shared By:**

Dan Meyer

**Math Topic:**

Understand ratio concepts and use ratio reasoning to solve problems.

Apply geometric concepts in modeling situations.

Explain volume formulas and use them to solve problems.

**Ontario Curriculum Alignment:**

**Common Core State Standard Alignment:**

## Draining The Pool

### How long will it take to drain the pool?

**Shared By:**

Kyle Pearce

**Math Topic:**

Linear and non-linear relationships including classifying positive/negative, strong/weak, predicting via interpolation and extrapolation using a line/curve of best fit on a scatter plot.

**Ontario Curriculum Alignment:**

**Common Core State Standard Alignment:**

## Gimme A Break

### How many pieces of the whole are there?

**Shared By:**

Kyle Pearce

**Math Topic:**

Adding and subtracting fractions; multiplying and dividing fractions.

**Ontario Curriculum Alignment:**

**Common Core State Standard Alignment:**

## Placing Toothpicks

### How many toothpicks are in the 6th figure? ... the 11th figure?

**Shared By:**

Justin Levack

Kyle Pearce

**Math Topic:**

Patterning, Proportional / Direct Variation Linear Relations

**Ontario Curriculum Alignment:**

- Grade 6 [Patterning and Algebra - PA1, Patterning and Algebra - PA2]
- Grade 7 [Patterning and Algebra - PA1, Patterning and Algebra - PA2]
- Grade 8 [Patterning and Algebra - PA1, Patterning and Algebra - PA2]
- MAT1L
- MAT2L
- MFM1P [Linear Relations - LR1, Linear Relations - LR2, Linear Relations - LR3, Number Sense and Algebra - NA1]
- MPM1D [LR2, Number Sense and Algebra - NA2]

**Common Core State Standard Alignment:**

## R2D2 Post-Its by @MrOrr_geek

### How many post-it notes will it take to fill the board?

**Shared By:**

Jon Orr

**Math Topic:**

Measurement of Area, Proportional Reasoning

**Ontario Curriculum Alignment:**

- Grade 6 [Measurement - M2, Number Sense and Numeration - NS3]
- Grade 7 [Measurement - M2, Number Sense and Numeration - NS3]
- Grade 8 [Measurement - M2, Number Sense and Numeration - NS3]
- MAT1L
- MAT2L
- MFM1P [Measurement and Geometry - MG2, Number Sense and Algebra - NA1]
- MPM1D [MG2, Number Sense and Algebra - NA2]

**Common Core State Standard Alignment:**

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