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.

I can use a table to reason about two quantities that are in a proportional relationship.

I understand the terms proportional relationship and 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.

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

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

I can ask questions about a situation to determine whether two quantities are in a proportional relationship.

I can solve all kinds of problems involving proportional relationships.

I can write an equation of the form to represent a proportional relationship shown in a table or described in a story.

I can write the constant of proportionality as an entry in a table.

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.

I can find missing information in a proportional relationship using the constant of proportionality.

I can relate all parts of an equation like to the situation it represents.

I know that the graph of a proportional relationship lies on a line through .

I can draw the graph of a proportional relationship given a single point on the graph (other than the origin).

I can find the constant of proportionality from a graph.

I understand the information given by graphs of proportional relationships that are made up of points or a line.

I can compare two, related proportional relationships based on their graphs.

I know that the steeper graph of two proportional relationships has a larger constant of proportionality.

I can interpret a graph of a proportional relationship using the situation.

I can write an equation representing a proportional relationship from a graph.

I can make connections between the graphs, tables, and equations of a proportional relationship.

I can use units to help me understand information about proportional relationships.

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