Unit 6: Expressions and equations

Lesson 1: Tape diagrams and equations

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Identify equations from visual models (tape diagrams)Get 3 of 4 questions to level up!

Lesson 2: Truth and equations

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Testing solutions to equations
(Opens a modal)
Intro to equations
(Opens a modal)
Why aren't we using the multiplication sign?
(Opens a modal)
Evaluating expressions with one variable
(Opens a modal)

Practice

Testing solutions to equationsGet 5 of 7 questions to level up!

Lesson 3: Staying in balance

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Same thing to both sides of equations
(Opens a modal)
Representing a relationship with an equation
(Opens a modal)
Dividing both sides of an equation
(Opens a modal)
One-step equations intuition
(Opens a modal)

Practice

Identify equations from visual models (hanger diagrams)Get 3 of 4 questions to level up!
Solve equations from visual modelsGet 3 of 4 questions to level up!

Lesson 4: Practice solving equations and representing situations with equations

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One-step subtraction equations
(Opens a modal)
One-step addition & subtraction equations: fractions & decimals
(Opens a modal)
One-step multiplication equations
(Opens a modal)

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One-step addition & subtraction equationsGet 5 of 7 questions to level up!
One-step addition & subtraction equations: fractions & decimalsGet 5 of 7 questions to level up!
One-step multiplication & division equationsGet 5 of 7 questions to level up!

Lesson 5: A new way to interpret a over b

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One-step multiplication & division equations: fractions & decimals
(Opens a modal)
Modeling with one-step equations
(Opens a modal)

Practice

One-step multiplication & division equations: fractions & decimalsGet 5 of 7 questions to level up!

Extra practice: Equations

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Finding mistakes in one-step equations
(Opens a modal)
Finding mistakes in one-step equations
(Opens a modal)

Lesson 6: Write expressions where letters stand for numbers

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What is a variable?
(Opens a modal)
Evaluating an expression with one variable
(Opens a modal)
Writing basic expressions word problems
(Opens a modal)
Writing basic expressions word problems
(Opens a modal)

Practice

Model with one-step equationsGet 3 of 4 questions to level up!
Evaluating expressions with one variableGet 5 of 7 questions to level up!
Writing basic expressions word problemsGet 5 of 7 questions to level up!

Lesson 7: Revisit percentages

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Solving percent problems
(Opens a modal)
Percent word problem: 100 is what percent of 80?
(Opens a modal)

Lesson 9: The distributive property, part 1

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Distributive property over addition
(Opens a modal)
Distributive property over subtraction
(Opens a modal)

Lesson 10: The distributive property, part 2

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Distributive property with variablesGet 3 of 4 questions to level up!

Lesson 11: The distributive property, part 3

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Equivalent expressions
(Opens a modal)

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Create equivalent expressions by factoringGet 3 of 4 questions to level up!
Combining like termsGet 5 of 7 questions to level up!
Equivalent expressionsGet 5 of 7 questions to level up!

Lesson 12: Meaning of exponents

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Intro to exponents
(Opens a modal)

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Exponents (basic)Get 5 of 7 questions to level up!

Lesson 13: Expressions with exponents

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Exponents of decimals
(Opens a modal)
Powers of fractions
(Opens a modal)

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ExponentsGet 5 of 7 questions to level up!
Powers of fractionsGet 5 of 7 questions to level up!

Lesson 14: Evaluating expressions with exponents

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Order of operationsGet 5 of 7 questions to level up!
Order of operations challengeGet 5 of 7 questions to level up!

Lesson 15: Equivalent exponential expressions

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Intro to exponents
(Opens a modal)
Evaluating expressions with variables: exponents
(Opens a modal)

Practice

Variable expressions with exponentsGet 3 of 4 questions to level up!
Evaluating expressions with variables word problemsGet 3 of 4 questions to level up!

Lesson 16: Two related quantities, part 1

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Dependent & independent variables
(Opens a modal)
Dependent and independent variables review
(Opens a modal)

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Independent versus dependent variablesGet 3 of 4 questions to level up!

Lesson 17: Two related quantities, part 2

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Ratios on coordinate plane
(Opens a modal)

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Ratios on coordinate planeGet 3 of 4 questions to level up!

Lesson 18: More relationships

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Tables from equations with 2 variablesGet 3 of 4 questions to level up!
Relationships between quantities in equations and graphsGet 3 of 4 questions to level up!

Extra practice: Expressions

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Terms, factors, and coefficients review
(Opens a modal)
Writing basic expressions with variables
(Opens a modal)
Writing basic expressions with variables
(Opens a modal)
Evaluating expressions with two variables
(Opens a modal)
Evaluating expressions with two variables: fractions & decimals
(Opens a modal)
Expression value intuition
(Opens a modal)

Practice

Parts of algebraic expressionsGet 5 of 7 questions to level up!
Evaluating expressions with multiple variablesGet 3 of 4 questions to level up!
Evaluating expressions with multiple variables: fractions & decimalsGet 3 of 4 questions to level up!