Math is everywhere! Young children begin to learn math by counting and sorting items. Next, they learn how to apply numbers to amounts. Between ages 3 and 5, kids learn their numbers, colors, and shapes. In elementary school, students learn very important math processes. They learn how to add, subtract, multiply, and divide whole numbers. Older elementary students learn how to use these operations with more complex numbers like fractions and decimals. In middle school, students move on to learning pre-algebra and algebra, as well as more complex geometry. In high school, students learn math to prepare them for college. The math they often focus on in high school is trigonometry, algebra, advanced algebra, geometry, and calculus.