This lesson unit is intended to help you assess how well students understand the relationship between the slopes of parallel and perpendicular lines and in particular, to help identify students who find it difficult to:

- Find, from their equations, lines that are parallel and ...

This lesson unit is intended to help you assess how well students are able to interpret distance–time graphs and, in particular, to help you identify students who:

- Interpret distance–time graphs as if they are pictures of situations rather than abstract representations of them. ...

This lesson unit is intended to help you assess how well students are able to:

- Find the slopes and equations of linear graphs defined by pairs of coordinates.
- Calculate the slope and
*y*-intercept of a straight line. - Use the slope and
*y*-intercept of ...

This lesson unit is intended to help you assess how well students are able to work in the coordinate plane to solve a problem in a real-world context. In particular, this unit aims to identify and help students who have difficulty measuring and interpreting horizontal or vertical intervals on...