Unit 3 Whole Number Computation
Learning Outcomes
• Create and solve multi step practical problems involving operations of whole numbers • Interpret remainders in practical problems involving division of whole numbers • Estimate sums, differences, products, and quotients of whole number computations • Use the order of operations to evaluate expressions involving whole numbers (limited to parentheses, addition, subtraction, multiplication, and division) • Investigate and utilize the distributive property of multiplication over addition to promote a flexible understanding of multiplication 
Essential Questions
• How do the rules of mathematics influence how problems are solved? • How does decomposing and composing numbers in different ways help you with computation? • Why would you represent a remainder in different ways? • How can you use multiplication or division to solve the same problem? • What relationships are there between operations? • How can estimation support the calculation of an exact solution? • What evidence of the baseten system is displayed in your computation strategies? • How can the distributive property be used to compute mentally and/or more efficiently? • What questions do you ask yourself when you are solving problems and reflecting on your solutions? 
Unit 3 Vocabulary
Order of Operations
parentheses expression algorithm 
problem solving
solution estimation calculation 
Long Division
share model remainder array decomposing numbers 
Order of Operations 
The standard order that math equations are solved.
Parentheses, exponents, Multiplication/division, addition/subtraction 
Parentheses 
Bars around a part of an equation that signal the first step in the order of operations

Expression 
A math problem that may have multiple numbers or variables. To solve an expression, the order of operations would be used.

Algorithm 
A "standard" way to solve a math equation.

Estimation 
A way to make a GOOD guess used for quickly solving a problem. Estimation uses rounding to solve.

Long Division 
a stepbystep process to divide large numbers into equal groups. The important terms used while working with division are: dividend, divisor, quotient, and remainder.

Share model 
A visual model for solving multiplication or division problems

Array 
A visual model that organizes factors in a multiplication and division problems
