LEJ4Learning

Evaluating expressions

What is a variable?
Why aren’t we using the multiplication sign
Example: Evaluating an expression
Example: Evaluate a formula using substitution
Evaluating exponential expressions
Evaluating expressions in two variables
Example evaluating expressions in word problems
Expression terms, factors and coefficients

Writing expressions

Writing expressions 1
Writing expressions 2
Writing expressions 2 exercise example
Writing expressions 3 exercise example 1
Writing expressions 3 exercise example 2
Writing expressions 3 exercise example 3

Equivalent expressions

Combining like terms
Adding like rational terms
Combining like terms 1
Combining like terms 2
Equivalent forms of expressions 1

Solving equations and inequalities with substitution

Variables, expressions, and equations
Solving equations and inequalities through substitution example 1
Solving equations and inequalities through substitution example 2
Solving equations and inequalities through substitution example 3
Solving equations and inequalities through substitution example 4

Thinking about solving equations

Why we do the same thing to both sides: Simple equations
Representing a relationship with a simple equation
One-step equation intuition
One step equation intuition exercise intro
Adding and subtracting the same thing from both sides
Intuition why we divide both sides

Super Yoga plans

Super Yoga plans: Basic variables and equations
Super Yoga plans: Solving one-step equations

Equations for beginners

Simple equations of the form ax = b
Example solving x/3 = 14
Example solving x + 5 = 54
Examples of one-step equations like ax = b and x + a = b

Dependent and independent variables

Dependent and independent variables exercise example 1
Dependent and independent variables exercise example 2
Dependent and independent variables exercise example 3

Inequalities

Inequalities in one variable 1 exercise
Inequalities on a number line

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