MINI #11 - TANGENT SEGMENTS & SIMILAR TRIANGLES Plane Geometry Proportional Reasoning Video by Art of Problem Solving's Richard Rusczyk. Read More
GETTING READY FOR SCHOOL Percents and Fractions Probability, Counting and Combinatorics Proportional Reasoning The date of the beginning of the school year has long been a topic of debate in many areas across the United States, but the trend is leaning towards starting school earlier rather than later... Read More