Teaching the branch of mathematics that studies the sizes, shapes, positions, angles, and dimensions of things.
Teaching the branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.
Teaching the branch of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.
Teaching the branch of mathematics that deals with the finding and properties of derivatives and integrals of functions, by methods originally based on the summation of infinitesimal differences. The two main types are differential calculus and integral calculus.