# Unit 2: My Reflections

## Lesson 1: One of These Things Is Not Like the Others

• I can use equivalent ratios to describe scaled copies of shapes.
• I know that two recipes will taste the same if the ingredients are in equivalent ratios.

## Lesson 2: Introducing Proportional Relationships with Tables

• I understand the terms proportional relationship and constant of proportionality.
• I can use a table to reason about two quantities that are in a proportional relationship.

## Lesson 3: More about Constant of Proportionality

• I can find missing information in a proportional relationship using a table.
• I can find the constant of proportionality from information given in a table.

## Lesson 4: Proportional Relationships and Equations

• I can write the the constant of proportionality as an entry in a table.
• I can write an equation of the form $y=kx$ to represent a proportional relationship described by a table or a story.

## Lesson 5: Two Equations for Each Relationship

• I can find two constants of proportionality for a proportional relationship.
• I can write two equations representing a proportional relationship described by a table or story.

## Lesson 6: Using Equations to Solve Problems

• I can relate all parts of an equation like $y = kx$ to the situation it represents.
• I can find missing information in a proportional relationship using the constant of proportionality.

## Lesson 7: Comparing Relationships with Tables

• I can decide if a relationship represented by a table could be proportional and when it is definitely not proportional.

## Lesson 8: Comparing Relationships with Equations

• I can decide if a relationship represented by an equation is proportional or not.

## Lesson 9: Solving Problems about Proportional Relationships

• I can ask questions about a situation to determine whether two quantities are in a proportional relationship.
• I can solve all kinds of problem involving proportional relationships.

## Lesson 10: Introducing Graphs of Proportional Relationships

• I know that the graph of a proportional relationship lies on a line through $(0,0)$.

## Lesson 11: Interpreting Graphs of Proportional Relationships

• I understand the information given by graphs of proportional relationships that are made of up of points or a line.
• I can find the constant of proportionality from a graph.
• I can draw the graph of a proportional relationship given a single point on the graph (other than the origin).

## Lesson 12: Using Graphs to Compare Relationships

• I know that the steeper graph of two proportional relationships has a larger constant of proportionality.
• I can compare two, related proportional relationships based on their graphs.

## Lesson 13: Two Graphs for Each Relationship

• I can interpret a graph of a proportional relationship using the situation.
• I can write an equation representing a proportional relationship from a graph.

## Lesson 14: Four Representations

• I can use units to help me understand information about proportional relationships.
• I can make connections between the graphs, tables, and equations of a proportional relationship.

## Lesson 15: Using Water Efficiently

• I can answer a question by representing a situation using proportional relationships.