SAT Math Lesson Plan 7: Ratios and Proportions

This 45-minute SAT Math prep lesson focuses on ratios, proportions, and percents—key concepts that appear throughout the Problem Solving and Data Analysis domain of the SAT. These topics account for approximately 29% of the SAT Math section and often appear in real-world scenarios involving recipes, maps, discounts, and data comparisons. In this lesson, students will learn to simplify ratios, solve proportions using cross multiplication, calculate percent increase and decrease, and solve percent-based equations involving unknowns. The lesson includes a warm-up activity, seven instructional examples with guided steps, five review problems with worked-out solutions, and a 10-question SAT-style quiz with a complete answer key. This lesson is part of a comprehensive 35-lesson series designed to help students build confidence and mastery in SAT Math topics.

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