This week we will introduce expressions. Here are the specifics:
- We will solve expressions using order of operations (PEMDAS)
- We will solve and simplify expressions with brackets
- We will write numerical expressions for word problems
- We will use divisibility rules to determine if a number is divisible by 2, 3, 5, 6, or 9
- We will determine if a number is prime or composite
Homework Videos
- Monday’s Homework: Watch 2 videos, and then attempt practice problems on iXL
- Video 1: Intro to Order of Operations
- Video 2: Worked out Example of Order of Operations
- iXL Practice: O.4 Evaluate numerical expressions
- Video 1: Intro to Order of Operations
- Tuesday’s Homework: Watch 1 video, and then practice problems on Khan Academy
- Video #1: Evaluating Expressions with or without Parentheses
- Khan Academy Practice: https://www.khanacademy.org/math/pre-algebra/pre-algebra-equations-expressions/pre-algebra-constructing-numeric-expressions/e/expressions-with-parentheses
- Video #1: Evaluating Expressions with or without Parentheses
- Wednesday’s Homework: Watch 2 videos, and then practice on Khan Academy
- Video 1: Prime Numbers
- Video 2: Identify Prime and Composite Numbers
- Khan Academy Practice: Identify Prime Numbers
- Khan Academy Practice: Identify Composite Numbers
- Video 1: Prime Numbers
- Thursday’s Homework: Cursive Practice
Helpful Videos
- Math Antics: Order of Operations
- Order of Operations – Brackets within Brackets
- NumbeRock Song: Order of Operations
- Another Order of Operations Song
- Khan Academy: Divisibility Rules
- Prime and Composite Numbers
- NumbeRock Song: Prime, Composite, and Squares
- Writing Numerical Expressions Video
Another Concept: Prime Factorization
- Math Antics – Prime Factorization
