Common Core Math 7
MONTH 3
Expressions and Equations
Scroll down for Class Notes and Video Tutorials . Resources may take a moment to load fully. Please be patient.
Class Notes
Week 1
M3W1 Math 7 24-25.pdfWeek 2
M3W2 Math 7 24-25.pdfWeek 3
Video Tutorials
Algebraic Expressions: Intro to Polynomials and Terms
Algebraic Expressions (Lesson 3.1)
Terms and Collecting Like Terms
Simplify an Expression by Combining "Like" Terms
Combining "Like" Terms
Adding and Subtracting Linear Expressions (Lesson 3.2)
The Distributive Property and Factoring Expressions
Factoring Expressions
Factoring Algebraic Expressions
Solving One-Step Addition & Subtraction Equations
Solving One-Step Equations Using Addition or Subtraction
Solving One-Step Equations Using Addition or Subtraction
Solving One-Step Equations Using Multiplication & Division
Solving One-Step Equations Using Multiplication & Division
Solving 2-Step Equations
Solving 2-Step Equations: Part 1
Solving 2-Step Equations: Part 2
Solving Muti-Step Equations
Additional Resources
EXPRESSIONS & EQUATIONS
An EXPRESSION is a mathematical statement that involves numbers, variables, or a combination of numbers and variables and operation symbols. It does NOT have an equal sign or an inequality symbol.
An EQUATION is made up of two expressions joined by an equal sign.
"SIMPLIFY" BEFORE YOU "SOLVE"
STEP 1: Use the Order of Operations to simplify the expressions on each side.
STEP 2: Use the REVERSE Order of Operations to solve the equation.
Start by combining all "like" terms from both sides through addition and subtraction.
Once there are no more "like" terms left anywhere in the equation, then you can use multiplication and division to isolate the variable, if needed.
Why "Keep, Change, Flip" Works
Why Do We Invert and Multiply.pdfGames to Practice Month 3 Concepts
Common Core State Standards (CCSS)
Ch. 2: Rational Numbers
2.3 Subtracting Rational Numbers (CCSS 7.NS.1c, 7.NS.1d, 7.NS.3)
2.4 Multiplying and Dividing Rational Numbers (CCSS 7.NS.2a, 7.NS.2b, 7.NS.2c, 7.NS.3)
Ch. 3: Expressions and Equations
3.1 Algebraic Expressions (CCSS 7.EE.1, 7.EE.2)
3.2 Adding and Subtracting Linear Expressions (CCSS 7.EE.1, 7.EE.2)
3.3 Solving Equations Using Addition or Subtraction (CCSS 7.EE.4a)
3.4 Solving Equations Using Mutiplication or Division (CCSS 7.EE.4a)
3.5 Solving Two-Step Equations (CCSS 7.EE.4a)