Grade 4 • Mathematics GT • Expressions and Evaluations

Grade 4 Mathematics GT

Expressions and Evaluations

Equation: a number sentence with an equal sign (Example: 5 x 4 = 20)
Expression: a mathematical combination of numbers, variables, and operations
Evaluate: to calculate the value of
Equivalent: having the same value
Exponents: shows the number of times the base number is multiplied by itself
Parenthesis: "round brackets" are the familiar ( ) symbols used in pairs to group things together
Bracket: symbols used in pairs to group things together (example (round brackets), [box brackets], {curley brackets}, or <angle brackets>)
Variables: a quantity that can change or vary, taking on different values
Sum: the answer to an addition problem (in 2 + 3 = 5, 5 is the sum)
Product: the answer when two or more numbers are multiplied together
Factor: a number that is multiplied by another number to get a product
Quantity: how much there is of something
Quotient: the result (answer) of dividing two numbers

Make up numbers, roll numbers with dice, or find numbers (on labels) and compare them.
Create rules (ex. n = 3) and have your student extend the number pattern (3, 6, _ , _).
Create a number pattern and have your student write the rule.
Create an input/ output machine (function table) for a given rule and have the student fill in the missing Inputs and Outputs.
Create an input/ output machine (function table) for an unknown rule and have the student fill in the missing Inputs and Outputs and write the rule.
Practice addition, subtraction, multiplication and division facts.
Write expressions to describe real life things (siblings age, number of pets, etc.).
Write expressions and use order of operations to solve.
Write a story incorporating variables. Have a friend try to solve for the variables.
Make flashcards using algebraic expressions and properties.