![]() Teaching How to Simplify Algebraic Expressions Bell-Work Activity You may also want to check out our article on writing and evaluating algebraic expressions. For instance, you can say that by using simplification, we can turn 2x 5y – y2 into 4xy. Substituting a number for each variable and doing the operation is called evaluating algebraic expressions.įinally, explain that simplifying an algebraic expression means that we’re turning a long expression into something that we can easily make sense of. Remind children that when algebra problems come as word problems, we must transform these words into algebraic expressions, known as writing algebraic expressions. This is a simple algebraic expression, as it contains two constants (the number 8 and 4 which don’t change), a variable (the letter x, which can change), and an operation (subtraction). By now, most students should be able to tell you that an algebraic expression is a mathematical expression comprising constants, variables, and operations (such as addition, subtraction, multiplication, etc.). Algebraic Expressions Definitionįor starters, remind students of the definition of an algebraic expression. Indeed, all the x’s and y’s can come across as tricky, but they’re certainly not impossible to learn! Math teachers can adopt various strategies to support students in becoming fluent in simplifying algebraic expressions. To achieve this, they apply the properties of real numbers and produce an equivalent form of an expression. They learn how to simplify them or rewrite them in a simplified way. In Algebra 2, algebraic expressions are one of the most important concepts students encounter.
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