MINI #67 - OPTIMIZATION PROBLEMS Problem Solving (Misc.) Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #71 - NUMBER SENSE PROBLEMS WITH PATTERNS AND REMAINDERS Number Theory Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #75 - STRATEGIC GUESSING USING DIVISIBILITY RULES Number Theory Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #80 - CIRCLES AND TRIANGLES REVISITED Plane Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #84 - TRAPEZOIDS AND TRIANGLES Coordinate Geometry Plane Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #86 - NON-STANDARD OPERATORS IN ALGEBRAIC EXPRESSIONS Algebraic Expressions and Equations Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #88 - MORE 30-60-90 RIGHT TRIANGLES Algebraic Expressions and Equations Plane Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #94 - MAKE A SKETCH Algebraic Expressions and Equations Plane Geometry Problem Solving (Misc.) Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #100 - CAREFUL COUNTING: A MEASUREMENT LESSON Measurement Video by Art of Problem Solving's Richard Rusczyk. Read More
ADDITION AND SUBTRACTION STRATEGIES Logic Number Theory Addition and subtraction may sound easy for middle schoolers, but what if you are missing some digits? What if you want to maximize or minimize a result? This plan focuses on some common types of... Read More