Unit Overview
In this unit, you’ll learn how to compare quantities and prices using ratios, rates, and unit pricing. These skills help you make smart decisions in real life—like choosing the best deal at the grocery store or comparing phone plans.
What You’ll Learn
Core math skills
- Use ratio language to compare quantities
- Write and interpret ratios in different forms
- Create and recognize equivalent ratios
- Calculate unit rates and unit prices
- Compare options using math, not guesses
Real-life contexts we’ll use
- Grocery flyers and store pricing
- Bulk vs single-item purchases
- Phone plans and subscriptions
- Everyday “best deal” decisions
BC Math 8 Alignment
Big Ideas (Unit connections)
- Proportional reasoning helps us compare quantities and make decisions.
- Mathematics helps us interpret and analyze real-world situations.
- Clear reasoning is more important than just getting an answer.
Curricular content in this unit
- Ratios and rates
- Equivalent ratios
- Unit rates and unit pricing
- Problem solving in financial contexts
Curricular competencies emphasized
- Reasoning and analyzing
- Communicating mathematical thinking
- Connecting math to everyday life
- Justifying decisions using math
Lessons in This Unit
| Lesson | Date |
|---|---|
| 2.1 Ratios & Ratio Language | |
| 2.2 Equivalent Ratios | |
| 2.3 Rates & Unit Rates | |
| 2.4 Unit Pricing & Best-Buy Comparisons | |
| 2.5 Review & Comparison Strategies | |
| 2.6 Unit Task: Best Deal Challenge |
Performance Task
Best Deal Challenge
You’ll compare real-world pricing options and decide which deal is best. Using unit rates, you’ll calculate, compare, and justify your choice using numbers, words, and visuals.
Success in this unit looks like…
- I can compare quantities using ratios and rates.
- I can calculate unit prices to find the best deal.
- I can explain my thinking clearly using math.
- I can justify decisions using evidence, not guesses.