#### Unit 2 Lesson 12 – Problem Solving with Proportional Relationships

• What will you learn:
• Setup and solve multi-step simple interest problems.
• Setup and solve multi-step tax problems.
• Setup and solve multi-step problems involving markup and markdowns.
• Setup and solve multi-step problems involving gratuities, commissions, and fees.
• Vocabulary
• Games
• SMART presentation
• Practice Quiz Lesson 12

#### Unit 3 Lesson 14

• What will you learn:
• Add and subtract linear expressions
• Combine like terms
• Determine if two expressions are equivalent
• Write equivalent expressions
• Vocabulary
• coefficient – a number that is a factor of a variable term
• constant – a term that is a number only with no variable factors
• evaluate – to find the value of an expression
• factor – a number, variable, or expression that is part of a multiplication expression
• term – a number, a variable or the product of a number and a variable
• variable – a letter that stands for an unknown number
• Games
• Practice Quiz

#### Unit 3 Lesson 15

• What you will learn:
• Rewrite expressions in different forms
• Use expression to find perimeter and area of triangles and rectangles
• Vocabulary
• equivalent expressions – expressions that have that same value for every possible value of the variable
• adjacent – next to each other
• dimension – a length in one direction. A figure may have one, two, or three dimensions
• Practice Quiz

#### Unit 3 Lesson 16

• What you will learn:
• Solve expression with rational numbers
• Games
• Practice Quiz

#### Unit 3 Lesson 17

• What you will learn:
• Write and solve real-life inequalities
• Graph and interpret the solution set of an inequality
• Vocabulary
• inequality – two unequal values that are compared using less than and greater than symbols
• solution set – a group of possible values that make an equation or inequality true
• determine – decide based on evidence
• reverse – change something to its opposite
• suppose – to think or imagine something is true
• Games
• Practice Quiz

#### Unit 4 Lesson 22

• What you will learn:
• Understand that a scale is a ratio
• Compute actual lengths from a scale drawing
• Compute actual areas from a scale drawing
• Reproduce a scale drawing using a different scale
• Vocabulary
• scale drawing – a drawing that shows an object with its measurements in proportion to the actual
• scale – a ratio that compares the measurements used in a scale drawing with the actual measurements
• scale factor – a constant of proportionality
• actual – true; existing in reality
• constant of proportionality – the unit rate in a proportional relationship
• correspond – to relate to or with something
• typical – usual
• Games
• Practice Quiz

#### 8th Grade Unit 3 Lesson 12

• What you will learn
• Understand that similar triangles have proportional side lengths
• Use the slope and y-intercept to derive an equation for a linear function
• Vocabulary
• similar triangles – triangles that are scale drawings of one another – they have the same shape but may have a different size
• slope – the ratio of the vertical change to the horizontal change
• y-intercept – the y-coordinate of the point where a line crosses the y-axis
• Games
• Practice Quiz

#### 8th Grade Unit 3 Lesson 14

• What you will learn
• Identify and provide examples of equations that have exactly one solution, infinitely many solutions or no solutions
• Vocabulary
• infinitely many – an unlimited number of
• Games
• Practice Quiz