**CATEGORY:**Open courses

# Open Tier 2

**Course Access:**Lifetime

Tier 2. Tier 2 is made up of three topics: Algebra, Geometry 2D, Geometry 3D, and Trigonometry.

Algebra teaches students to apply a process, and students learn how to approach a mathematical problem. Students learn how to solve linear equations by applying topics learned in Tier 1 – addition, subtraction, multiplication, division, the distributive law, reciprocal, and exponents – as well as The Rule of Algebra. Students are also introduced to the SIN and COS functions, and how they are dealt with in linear equations.

Students already use geometry in their lives and most don’t even realize it. This course teaches students that when they understand the rules of straight lines and angles, parallel lines, triangles, and the Pythagorean Theorem, they can figure out a lot when given only a little bit of information. Algebra and Geometry are combined in utilizing similar triangles to solve a variety of problems, which is one of the most useful tools in industrial practical math. Geometry lessons teach students about polygons and their perimeters, area, volume, and surface area, as well as the formulas that govern them.

Some students are intimidated by the trigonometry functions SIN, COS, and TAN, but this intimidation is unnecessary! The trigonometry lessons clearly and concisely explain that these functions are simply ratios, and when given a little bit of information, your student can learn a lot about the triangles that use them. In addition, the Pythagorean Theorem, and the Laws of Sines and Cosines, aid in a student’s understanding of trigonometry.