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# Topics Covered in Math Challenge I-B

### Summer Sample Lessons for Pre-Algebra/Word Problems

- Ratios and Proportions
- Ratios, Proportions, and Percentages
- Sums, Differences, and Multiples
- Chickens and Rabbits
- Chicken and Rabbits & Mixing
- Motion
- Motion
- Work
- Work
- Math Contest Review

### Fall Sample Lessons for Geometry

- Counting Through Patterns
- Problem Solving with Measurements
- Dance with Angles
- Magic In Triangles
- You Are Special, Right?
- Angles Are Special Too
- Area of Polygons
- Cool Areas
- Circle Around
- Math Contest Review

### Winter Sample Lessons for Counting & Probability

- The Sum Rule: An Introduction to Counting
- The Product Rule
- Does Order Matter? Permutations and Combinations
- Counting Strategies: Grouping and Spacing
- Counting Strategies: Stars and Bars
- Venn Diagrams and Sets
- Patterns and Sequences
- What are the Chances? Probability
- Probability and Statistics
- Math Contest Review

### Spring Sample Lessons for Number Theory

- Place Values and Calculation Tricks
- Building Blocks: Primes and Factors
- Problem Solving with Primes and Factors
- Divisibility Fundamentals
- Problem Solving with Divisibility
- Fundamentals of GCD's and LCM's
- Problem Solving using GCD's and LCM's
- Remainders and Modular Arithmetic
- Word Problems with Modular Arithmetic
- Math Contest Review

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