An effective instructional strategy is to make the new math topic meaningful. A fellow Facebook group member asked about teaching the topic constant of proportionality. My suggestion is to use hourly wages as an introduction.
I created a handout that starts with students finding a job with an hourly pay stated and then completing a time sheet.
This is followed by unpacking the relationship between hours and pay.
This establishes a context and a situation that many if not most students may find interesting and to connect to the math topic. This handout is intended as an introduction and not the formal unpacking of the term.