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 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 find the constant of proportionality from a graph.

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

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 examine quotients and use a graph to decide whether two associated quantities are in a proportional relationship.

I understand that it can be difficult to measure the quantities in a proportional relationship accurately.

I can describe the characteristics that make a shape a circle.

I can identify the diameter, center, radius, and circumference of a circle.

I can describe the relationship between circumference and diameter of any circle.

I can explain what means.

I can choose an approximation for based on the situation or problem.

If I know the radius, diameter, or circumference of a circle, I can find the other two.

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.

I can decide whether a situation about a circle has to do with area or circumference.

I can use formulas for circumference and area of a circle to solve problems.

I can apply my understanding of area and circumference of circles to solve more complicated problems.

I can calculate the area of a complicated shape by breaking it into shapes whose area I know how to calculate.

I know the formula for area of a circle.

I know whether or not the relationship between the diameter and area of a circle is proportional and can explain how I know.

I can calculate the area of more complicated shapes that include fractions of circles.

I can write exact answers in terms of .