Applications of Symmetry
Symmetry is an ubiquitous topic in mathematics. It underlies many physical phenomena, and when symmetry is recognized in a problem, it often provides a much shorter way of solving the problem.
Mathematical Modelling
How well do our graphs, equations, and computer programs describe the universe? There's math for that too.
Probability Part 1
With practice of probability comes great power.
Why Triangles?
The motivation for studying the geometry of triangles and the behavior of trigonometric functions.