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Grade 6 Math Lab: The Physics of Algebra FREE

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Ratios and Proportions

50 min Grade 6 Math Lab: The Physics of Algebra

Learning Objectives

  • Understand ratio relationships
  • Solve proportion problems
  • Apply to real situations

Key Concepts

Ratio

A comparison of two quantities

Proportion

An equation stating two ratios are equal

Theory

A ratio compares quantities. If 2:3, for every 2 of one thing, there are 3 of another.

Examples

If 2:5 = x:15

Solution: x = 6 (cross multiply: 2×15 = 5x)