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RATIOS & SIMPLE PROBABILITY

  • Probability, Counting and Combinatorics
This plan builds on what Mathletes already know about ratios to introduce the definition of probability as a ratio of desired outcomes to total outcomes. Mathletes will then practice calculating the...

MINI #59 - RATIOS

  • Percents and Fractions
Video by Art of Problem Solving's Richard Rusczyk.

PERCENTAGES

  • Algebraic Expressions and Equations
  • Percents and Fractions
This plan focuses on all things percents. Mathletes will practice with tips, markups, markdowns, interest and percent of quantity scenarios. Use the 'would you rather' questions in the extension to...

RATIOS AND AREA

  • Measurement
  • Plane Geometry
  • Proportional Reasoning
Understanding and applying ratios can be used in a variety of problems, from finding a missing measurement to determining scale between similar figures. Mathletes will solve problems using ratios...

MASS POINTS (PARTS 1 & 2)

  • Plane Geometry
  • Proportional Reasoning
Learn what Mass Points are and how to use them to solve problems involving side lengths and areas of triangles. Mass Points Part 1 (above) covers the fundamentals of Mass Points, while Mass Points...