Search this site
Embedded Files
Skip to main content
Skip to navigation
Middle School Math
Home
7th Grade Math
Unit 1: Integers
Lesson 1: Interpreting Negative Numbers
Lesson 2: Using a Number Line to Add Signed Numbers
Lesson 3: Adding Integers Cont'd
Lesson 4: Money and Debts
Lesson 5: Subtracting Signed Numbers
Lesson 6: Multiplying and Dividing Signed Numbers
Unit 2: Rational Numbers
Lesson 1: Converting Between Fractions and Decimals
Lesson 2: Adding Rational Numbers
Lesson 3: Subtracting Rational Numbers
Lesson 4: Multiplying and Dividing Rational Numbers
Lesson 5: Rational Number Expressions
Lesson 6: Solving Word Problems with Rational Numbers
Unit 3: Algebraic Expressions
Lesson 1: Simplifying Expressions
Lesson 2: Simplifying Expressions with Rational Numbers
Lesson 3: Expanding and Factoring Expressions
Lesson 4: Applying the Distributive Property Day 1
Lesson 5: Applying the Distributive Property Day 2
Unit 4: Equations
Lesson 1: Solving One-Step Equations
Lesson 2: Solving Two - Step Equations
Lesson 3: Solving Equations with Parentheses
Lesson 4: Solving Word Problems by Using Equations
Lesson 5: Additional Practice Writing and Solving Equations
Unit 5: Inequalities
Lesson 1: Writing and Graphing Inequalities
Lesson 2: Solving One-Step Inequalities
Lesson 3: Solving Two-Step Inequalities
Lesson 4: Writing Inequalities
Lesson 5: Solving Real World Problems by Using Inequalities Day 1
Lesson 6: Solving Real World Problems by Using Inequalities Day 2
Unit 6: Unit Rates and Proportional Relationships
Lesson 1: Calculating Unit Rates
Lesson 2: Writing and Solving Proportions
Lesson 3: Calculating Unit Rates with Fractions Day 1
Lesson 4: Calculating Unit Rates with Fractions Day 2
Lesson 5: Introduction to Proportional Relationships
Lesson 6: Proportional Relationships: Tables
Lesson 7: Proportional Relationships: Graphs
Lesson 8: Proportional Relationship: Equations
Unit 7: Percents
Lesson 1: Fraction, Decimals, and Percent Conversions
Lesson 2: The Percent Proportion
Lesson 3: Solving Problems with the Percent Proportion
Lesson 4: Percent Increase/Decrease
Lesson 5: Percent of Change
Lesson 6: Percent Error
Lesson 7: Calculating a Markup
Lesson 8: Calculating a Discount
Lesson 9: Calculating Sales Tax and Tip
Lesson 10: Multi-Step Percent Problems
Lesson 11: Calculating Commission
Lesson 12: Simple Interest
Lesson 13: Writing Expressions with Percents
Unit 8: Scale Drawings
Lesson 1: Understanding Scaled Copies
Lesson 2: Creating Scaled Copies
Lesson 3: Scale Drawing/Models Day 1
Lesson 4: Scale Drawing/Models Day 2
Unit 9: Circles
Lesson 1: Exploring Circles
Lesson 2: Circumference of a Circle
Lesson 3: Area of a Circle
Lesson 4: Applying Area to Circumference
Lesson 5: Applying Circumference or a Circle
Lesson 6: Applying Area of a Circle
Unit 10: Probability
Lesson 1: Introduction to Probability
Lesson 2: Theoretical vs Experimental Probability
Lesson 3: Experimental Probability Day 2
Lesson 4: Compound Events
Unit 11: Statistics
Test Prep
Week of 4/6/21
Week of 4/12/21
Unit 12: Angle Relationships
Lesson 1: Identifying Angles
Lesson 2: Angle Relationships
Lesson 3: Using Equations to Solve for Missing Angles
Lesson 4: Writing and Solving Equations to Determine Missing Angles
Lesson 5: Parallel Lines Cut by a Transversal
Lesson 6: Triangle Sum Theorem
Lesson 7: Exterior Angle Theorem
Lesson 8: Triangle Inequality Theorem
Lesson 9: Using Equations to Solve for Missing Angles in Triangles
Unit 13: Geometry Concepts
Lesson 1: Area of 2-D Figures
Lesson 2: Area of Composite Figures
8th Grade Math
Unit 1: Exponents
Lesson 1: Multiplying Powers of 10
Lesson 2: Powers of Powers of 10
Lesson 3: Dividing Powers of 10
Lesson 4: Negative Powers of 10
Lesson 5: Powers of a Product and Quotient
Unit 2: Scientific Notation
Lesson 1: Writing Numbers in Scientific Notation
Lesson 2: Comparing and Ordering Numbers in Scientific Notation
Lesson 3: Adding and Subtracting in Scientific Notation
Lesson 4: Multiplying and Dividing Numbers in Scientific Notation
Lesson 5: Solving Word Problems with Numbers in Scientific Notation
Unit 3: Linear Equations
Lesson 1: Underingstanding Proportional Relationships
Lesson 2: Graphs of Proportional Relationships
Lesson 3: Comparing Proportional Relationships
Lesson 4: Understanding Non-Proportional Lines
Lesson 5: Interpreting Rate of change and Initial Value (Positive Slope)
Lesson 6: Interpreting Rate of change and Initial Value (Negative Slope)
Lesson 7: Calculating Slope
Lesson 8: Zero and Undefined Slope
Lesson 9: Writing Linear Equations From a Graph
Lesson 10: Graphing Lines In Slope- Intercept Form
Lesson 11: Re-writing Linear Equations in Slope-Intercept Form
Lesson 12: Writing Linear Equations In Slope-Intercept From
Lesson 13: Writing Linear Equations From a Table
Unit 4: Multi-Step Equations
Lesson 1: Solving Equations Review
Lesson 2: Solving Equations with Variables son Both Sides of the Equal Sign
Lesson 3: Number of Solutions
Lesson 4: Multi-Step Equations Word Problems
Unit 5: Systems of Equations
Lesson 1: Solving a System of Equations by Graphing
Lesson 2: Solving a System of Equations by Using Substitution
Lesson 3: Solving a System of Equations by Using Elimination
Lesson 4: Number of Solutions to a System of Equations
Lesson 5: System of Equations Word Problems: Graphing
Lesson 6: System of Equations Word Problems: Substitution Day 1
Lesson 7: System of Equations Word Problems: Substitution Day 2
Lesson 8: System of Equations Word Problems: Elimination
Unit 6: Functions
Lesson 1: What is a Function?
Lesson 2: Linear vs Nonlinear Functions
Lesson 3: Comparing Functions Day 1
Lesson 4: Comparing Functions Day 2
Lesson 5: Modeling Functions Day 1
Lesson 6: Modeling Functions Day 2
Lesson 7: Piecewise Functions Day 1
Lesson 8: Piecewise Functions Day 2
Unit 7: Volume
Lesson 1: Volume of a Cylinder
Lesson 2: Volume of a Cone
Lesson 3: Volume of a Sphere
Unit 8: Scatter Plots
Lesson 1: Introduction to Scatter Plots
Lesson 2: Drawing a Trend Line
Lesson 3: Writing an Equation for a Trend Line
Unit 9: Transformations
Lesson 1: Understanding Congruent and Similar Figures
Lesson 2: Translations
Lesson 3: Reflections
Lesson 4: Rotations
Lesson 5: Dilations
Lesson 6: Transformations Mixed Practice
Lesson 7: Sequencing Transformations Day 1
Test Prep
Week of 4/6/21
Week of 4/12/21
Unit 10: The Real Number System
Lesson 1: Square Roots/Cube Roots
Lesson 2: The Real Number System
Lesson 3: Comparing and Ordering Real Numbers
Lesson 4: Estimating Non-Perfect Squares
Unit 11: The Pythagorean Theorem
Lesson 1: Calculating the Area of a Tilted Square
Lesson 2: The Pythagorean Theorem
Ms. Lucido
Contact Information
Ms. Lucido's Schedule
Math Expectations
Grading
Classwork/Homework/Tests
School Information
Math Resources
Middle School Math
Home
7th Grade Math
Unit 1: Integers
Lesson 1: Interpreting Negative Numbers
Lesson 2: Using a Number Line to Add Signed Numbers
Lesson 3: Adding Integers Cont'd
Lesson 4: Money and Debts
Lesson 5: Subtracting Signed Numbers
Lesson 6: Multiplying and Dividing Signed Numbers
Unit 2: Rational Numbers
Lesson 1: Converting Between Fractions and Decimals
Lesson 2: Adding Rational Numbers
Lesson 3: Subtracting Rational Numbers
Lesson 4: Multiplying and Dividing Rational Numbers
Lesson 5: Rational Number Expressions
Lesson 6: Solving Word Problems with Rational Numbers
Unit 3: Algebraic Expressions
Lesson 1: Simplifying Expressions
Lesson 2: Simplifying Expressions with Rational Numbers
Lesson 3: Expanding and Factoring Expressions
Lesson 4: Applying the Distributive Property Day 1
Lesson 5: Applying the Distributive Property Day 2
Unit 4: Equations
Lesson 1: Solving One-Step Equations
Lesson 2: Solving Two - Step Equations
Lesson 3: Solving Equations with Parentheses
Lesson 4: Solving Word Problems by Using Equations
Lesson 5: Additional Practice Writing and Solving Equations
Unit 5: Inequalities
Lesson 1: Writing and Graphing Inequalities
Lesson 2: Solving One-Step Inequalities
Lesson 3: Solving Two-Step Inequalities
Lesson 4: Writing Inequalities
Lesson 5: Solving Real World Problems by Using Inequalities Day 1
Lesson 6: Solving Real World Problems by Using Inequalities Day 2
Unit 6: Unit Rates and Proportional Relationships
Lesson 1: Calculating Unit Rates
Lesson 2: Writing and Solving Proportions
Lesson 3: Calculating Unit Rates with Fractions Day 1
Lesson 4: Calculating Unit Rates with Fractions Day 2
Lesson 5: Introduction to Proportional Relationships
Lesson 6: Proportional Relationships: Tables
Lesson 7: Proportional Relationships: Graphs
Lesson 8: Proportional Relationship: Equations
Unit 7: Percents
Lesson 1: Fraction, Decimals, and Percent Conversions
Lesson 2: The Percent Proportion
Lesson 3: Solving Problems with the Percent Proportion
Lesson 4: Percent Increase/Decrease
Lesson 5: Percent of Change
Lesson 6: Percent Error
Lesson 7: Calculating a Markup
Lesson 8: Calculating a Discount
Lesson 9: Calculating Sales Tax and Tip
Lesson 10: Multi-Step Percent Problems
Lesson 11: Calculating Commission
Lesson 12: Simple Interest
Lesson 13: Writing Expressions with Percents
Unit 8: Scale Drawings
Lesson 1: Understanding Scaled Copies
Lesson 2: Creating Scaled Copies
Lesson 3: Scale Drawing/Models Day 1
Lesson 4: Scale Drawing/Models Day 2
Unit 9: Circles
Lesson 1: Exploring Circles
Lesson 2: Circumference of a Circle
Lesson 3: Area of a Circle
Lesson 4: Applying Area to Circumference
Lesson 5: Applying Circumference or a Circle
Lesson 6: Applying Area of a Circle
Unit 10: Probability
Lesson 1: Introduction to Probability
Lesson 2: Theoretical vs Experimental Probability
Lesson 3: Experimental Probability Day 2
Lesson 4: Compound Events
Unit 11: Statistics
Test Prep
Week of 4/6/21
Week of 4/12/21
Unit 12: Angle Relationships
Lesson 1: Identifying Angles
Lesson 2: Angle Relationships
Lesson 3: Using Equations to Solve for Missing Angles
Lesson 4: Writing and Solving Equations to Determine Missing Angles
Lesson 5: Parallel Lines Cut by a Transversal
Lesson 6: Triangle Sum Theorem
Lesson 7: Exterior Angle Theorem
Lesson 8: Triangle Inequality Theorem
Lesson 9: Using Equations to Solve for Missing Angles in Triangles
Unit 13: Geometry Concepts
Lesson 1: Area of 2-D Figures
Lesson 2: Area of Composite Figures
8th Grade Math
Unit 1: Exponents
Lesson 1: Multiplying Powers of 10
Lesson 2: Powers of Powers of 10
Lesson 3: Dividing Powers of 10
Lesson 4: Negative Powers of 10
Lesson 5: Powers of a Product and Quotient
Unit 2: Scientific Notation
Lesson 1: Writing Numbers in Scientific Notation
Lesson 2: Comparing and Ordering Numbers in Scientific Notation
Lesson 3: Adding and Subtracting in Scientific Notation
Lesson 4: Multiplying and Dividing Numbers in Scientific Notation
Lesson 5: Solving Word Problems with Numbers in Scientific Notation
Unit 3: Linear Equations
Lesson 1: Underingstanding Proportional Relationships
Lesson 2: Graphs of Proportional Relationships
Lesson 3: Comparing Proportional Relationships
Lesson 4: Understanding Non-Proportional Lines
Lesson 5: Interpreting Rate of change and Initial Value (Positive Slope)
Lesson 6: Interpreting Rate of change and Initial Value (Negative Slope)
Lesson 7: Calculating Slope
Lesson 8: Zero and Undefined Slope
Lesson 9: Writing Linear Equations From a Graph
Lesson 10: Graphing Lines In Slope- Intercept Form
Lesson 11: Re-writing Linear Equations in Slope-Intercept Form
Lesson 12: Writing Linear Equations In Slope-Intercept From
Lesson 13: Writing Linear Equations From a Table
Unit 4: Multi-Step Equations
Lesson 1: Solving Equations Review
Lesson 2: Solving Equations with Variables son Both Sides of the Equal Sign
Lesson 3: Number of Solutions
Lesson 4: Multi-Step Equations Word Problems
Unit 5: Systems of Equations
Lesson 1: Solving a System of Equations by Graphing
Lesson 2: Solving a System of Equations by Using Substitution
Lesson 3: Solving a System of Equations by Using Elimination
Lesson 4: Number of Solutions to a System of Equations
Lesson 5: System of Equations Word Problems: Graphing
Lesson 6: System of Equations Word Problems: Substitution Day 1
Lesson 7: System of Equations Word Problems: Substitution Day 2
Lesson 8: System of Equations Word Problems: Elimination
Unit 6: Functions
Lesson 1: What is a Function?
Lesson 2: Linear vs Nonlinear Functions
Lesson 3: Comparing Functions Day 1
Lesson 4: Comparing Functions Day 2
Lesson 5: Modeling Functions Day 1
Lesson 6: Modeling Functions Day 2
Lesson 7: Piecewise Functions Day 1
Lesson 8: Piecewise Functions Day 2
Unit 7: Volume
Lesson 1: Volume of a Cylinder
Lesson 2: Volume of a Cone
Lesson 3: Volume of a Sphere
Unit 8: Scatter Plots
Lesson 1: Introduction to Scatter Plots
Lesson 2: Drawing a Trend Line
Lesson 3: Writing an Equation for a Trend Line
Unit 9: Transformations
Lesson 1: Understanding Congruent and Similar Figures
Lesson 2: Translations
Lesson 3: Reflections
Lesson 4: Rotations
Lesson 5: Dilations
Lesson 6: Transformations Mixed Practice
Lesson 7: Sequencing Transformations Day 1
Test Prep
Week of 4/6/21
Week of 4/12/21
Unit 10: The Real Number System
Lesson 1: Square Roots/Cube Roots
Lesson 2: The Real Number System
Lesson 3: Comparing and Ordering Real Numbers
Lesson 4: Estimating Non-Perfect Squares
Unit 11: The Pythagorean Theorem
Lesson 1: Calculating the Area of a Tilted Square
Lesson 2: The Pythagorean Theorem
Ms. Lucido
Contact Information
Ms. Lucido's Schedule
Math Expectations
Grading
Classwork/Homework/Tests
School Information
Math Resources
More
Home
7th Grade Math
Unit 1: Integers
Lesson 1: Interpreting Negative Numbers
Lesson 2: Using a Number Line to Add Signed Numbers
Lesson 3: Adding Integers Cont'd
Lesson 4: Money and Debts
Lesson 5: Subtracting Signed Numbers
Lesson 6: Multiplying and Dividing Signed Numbers
Unit 2: Rational Numbers
Lesson 1: Converting Between Fractions and Decimals
Lesson 2: Adding Rational Numbers
Lesson 3: Subtracting Rational Numbers
Lesson 4: Multiplying and Dividing Rational Numbers
Lesson 5: Rational Number Expressions
Lesson 6: Solving Word Problems with Rational Numbers
Unit 3: Algebraic Expressions
Lesson 1: Simplifying Expressions
Lesson 2: Simplifying Expressions with Rational Numbers
Lesson 3: Expanding and Factoring Expressions
Lesson 4: Applying the Distributive Property Day 1
Lesson 5: Applying the Distributive Property Day 2
Unit 4: Equations
Lesson 1: Solving One-Step Equations
Lesson 2: Solving Two - Step Equations
Lesson 3: Solving Equations with Parentheses
Lesson 4: Solving Word Problems by Using Equations
Lesson 5: Additional Practice Writing and Solving Equations
Unit 5: Inequalities
Lesson 1: Writing and Graphing Inequalities
Lesson 2: Solving One-Step Inequalities
Lesson 3: Solving Two-Step Inequalities
Lesson 4: Writing Inequalities
Lesson 5: Solving Real World Problems by Using Inequalities Day 1
Lesson 6: Solving Real World Problems by Using Inequalities Day 2
Unit 6: Unit Rates and Proportional Relationships
Lesson 1: Calculating Unit Rates
Lesson 2: Writing and Solving Proportions
Lesson 3: Calculating Unit Rates with Fractions Day 1
Lesson 4: Calculating Unit Rates with Fractions Day 2
Lesson 5: Introduction to Proportional Relationships
Lesson 6: Proportional Relationships: Tables
Lesson 7: Proportional Relationships: Graphs
Lesson 8: Proportional Relationship: Equations
Unit 7: Percents
Lesson 1: Fraction, Decimals, and Percent Conversions
Lesson 2: The Percent Proportion
Lesson 3: Solving Problems with the Percent Proportion
Lesson 4: Percent Increase/Decrease
Lesson 5: Percent of Change
Lesson 6: Percent Error
Lesson 7: Calculating a Markup
Lesson 8: Calculating a Discount
Lesson 9: Calculating Sales Tax and Tip
Lesson 10: Multi-Step Percent Problems
Lesson 11: Calculating Commission
Lesson 12: Simple Interest
Lesson 13: Writing Expressions with Percents
Unit 8: Scale Drawings
Lesson 1: Understanding Scaled Copies
Lesson 2: Creating Scaled Copies
Lesson 3: Scale Drawing/Models Day 1
Lesson 4: Scale Drawing/Models Day 2
Unit 9: Circles
Lesson 1: Exploring Circles
Lesson 2: Circumference of a Circle
Lesson 3: Area of a Circle
Lesson 4: Applying Area to Circumference
Lesson 5: Applying Circumference or a Circle
Lesson 6: Applying Area of a Circle
Unit 10: Probability
Lesson 1: Introduction to Probability
Lesson 2: Theoretical vs Experimental Probability
Lesson 3: Experimental Probability Day 2
Lesson 4: Compound Events
Unit 11: Statistics
Test Prep
Week of 4/6/21
Week of 4/12/21
Unit 12: Angle Relationships
Lesson 1: Identifying Angles
Lesson 2: Angle Relationships
Lesson 3: Using Equations to Solve for Missing Angles
Lesson 4: Writing and Solving Equations to Determine Missing Angles
Lesson 5: Parallel Lines Cut by a Transversal
Lesson 6: Triangle Sum Theorem
Lesson 7: Exterior Angle Theorem
Lesson 8: Triangle Inequality Theorem
Lesson 9: Using Equations to Solve for Missing Angles in Triangles
Unit 13: Geometry Concepts
Lesson 1: Area of 2-D Figures
Lesson 2: Area of Composite Figures
8th Grade Math
Unit 1: Exponents
Lesson 1: Multiplying Powers of 10
Lesson 2: Powers of Powers of 10
Lesson 3: Dividing Powers of 10
Lesson 4: Negative Powers of 10
Lesson 5: Powers of a Product and Quotient
Unit 2: Scientific Notation
Lesson 1: Writing Numbers in Scientific Notation
Lesson 2: Comparing and Ordering Numbers in Scientific Notation
Lesson 3: Adding and Subtracting in Scientific Notation
Lesson 4: Multiplying and Dividing Numbers in Scientific Notation
Lesson 5: Solving Word Problems with Numbers in Scientific Notation
Unit 3: Linear Equations
Lesson 1: Underingstanding Proportional Relationships
Lesson 2: Graphs of Proportional Relationships
Lesson 3: Comparing Proportional Relationships
Lesson 4: Understanding Non-Proportional Lines
Lesson 5: Interpreting Rate of change and Initial Value (Positive Slope)
Lesson 6: Interpreting Rate of change and Initial Value (Negative Slope)
Lesson 7: Calculating Slope
Lesson 8: Zero and Undefined Slope
Lesson 9: Writing Linear Equations From a Graph
Lesson 10: Graphing Lines In Slope- Intercept Form
Lesson 11: Re-writing Linear Equations in Slope-Intercept Form
Lesson 12: Writing Linear Equations In Slope-Intercept From
Lesson 13: Writing Linear Equations From a Table
Unit 4: Multi-Step Equations
Lesson 1: Solving Equations Review
Lesson 2: Solving Equations with Variables son Both Sides of the Equal Sign
Lesson 3: Number of Solutions
Lesson 4: Multi-Step Equations Word Problems
Unit 5: Systems of Equations
Lesson 1: Solving a System of Equations by Graphing
Lesson 2: Solving a System of Equations by Using Substitution
Lesson 3: Solving a System of Equations by Using Elimination
Lesson 4: Number of Solutions to a System of Equations
Lesson 5: System of Equations Word Problems: Graphing
Lesson 6: System of Equations Word Problems: Substitution Day 1
Lesson 7: System of Equations Word Problems: Substitution Day 2
Lesson 8: System of Equations Word Problems: Elimination
Unit 6: Functions
Lesson 1: What is a Function?
Lesson 2: Linear vs Nonlinear Functions
Lesson 3: Comparing Functions Day 1
Lesson 4: Comparing Functions Day 2
Lesson 5: Modeling Functions Day 1
Lesson 6: Modeling Functions Day 2
Lesson 7: Piecewise Functions Day 1
Lesson 8: Piecewise Functions Day 2
Unit 7: Volume
Lesson 1: Volume of a Cylinder
Lesson 2: Volume of a Cone
Lesson 3: Volume of a Sphere
Unit 8: Scatter Plots
Lesson 1: Introduction to Scatter Plots
Lesson 2: Drawing a Trend Line
Lesson 3: Writing an Equation for a Trend Line
Unit 9: Transformations
Lesson 1: Understanding Congruent and Similar Figures
Lesson 2: Translations
Lesson 3: Reflections
Lesson 4: Rotations
Lesson 5: Dilations
Lesson 6: Transformations Mixed Practice
Lesson 7: Sequencing Transformations Day 1
Test Prep
Week of 4/6/21
Week of 4/12/21
Unit 10: The Real Number System
Lesson 1: Square Roots/Cube Roots
Lesson 2: The Real Number System
Lesson 3: Comparing and Ordering Real Numbers
Lesson 4: Estimating Non-Perfect Squares
Unit 11: The Pythagorean Theorem
Lesson 1: Calculating the Area of a Tilted Square
Lesson 2: The Pythagorean Theorem
Ms. Lucido
Contact Information
Ms. Lucido's Schedule
Math Expectations
Grading
Classwork/Homework/Tests
School Information
Math Resources
Lesson 8 System of Equations Word Problems: Elimination
January 8, 2021 - Lesson Recording
8th Grade Unit 5 Lesson 8.mp4
Return to 8th Grade Math
Return to Unit 5
Return to Home
Report abuse
Page details
Page updated
Report abuse
8th Grade Unit 5 Lesson 8.mp48th Grade Unit 5 Lesson 8.mp4