MINI #43 - USING SIMILARITY TO SOLVE GEOMETRY PROBLEMS Plane Geometry Proportional Reasoning Solid Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
NEUROSCIENCE RESEARCH Percents and Fractions Probability, Counting and Combinatorics Solid Geometry The following information and problems were submitted by a MATHCOUNTS volunteer, Emily Koithan. Thank you, Emily! Neuroscientists use a special type of brain scanning called functional magnetic... Read More
MINI #93 - SEQUENCES AND CENTRAL TENDENCY Sequences, Series and Patterns Statistics and Data Video by Art of Problem Solving's Richard Rusczyk. Read More