An equation is a mathematical statement that shows the equality of two expressions. It consists of an equal sign (=) between two expressions, with one expression on the left side of the equal sign and the other expression on the right side. The expressions on both sides of the equal sign are called the "sides" of the equation.
Types of Equations
There are different types of equations, including:
Linear Equations: Equations in which the highest power of the variable is 1. For example: 2x + 3 = 7.
Quadratic Equations: Equations in which the highest power of the variable is 2. For example: x^2 - 4x + 4 = 0.
Exponential Equations: Equations in which the variable appears in the exponent. For example: 3^x = 27.
Practice solving equations of various types and difficulty levels to strengthen your understanding. Additionally, familiarize yourself with the properties of equality and the rules for manipulating equations.
Remember to always show your steps when solving equations to avoid making errors, and don't forget to check your solutions!
Number and Operations: Students' work in dividing fractions shows them that they can express the result of dividing two whole numbers as a fraction (viewed as parts of a whole). Students then extend their work in grade 5 with division of whole numbers to give mixed number and decimal solutions to division problems with whole numbers. They recognize that ratio tables not only derive from rows in the multiplication table but also connect with equivalent fractions. Students distinguish multiplicative comparisons from additive comparisons.