This unit has a lot of flexibility to suit a variety of approaches. What I do is divide the students into groups and supply them with a list of words with worksheets for filling in definitions and sample sentences. Then, each group takes a turn once a week presenting their words to the rest of the group.
Also included are completed worksheets to use as a study guide, in case you want to use it that way.
A teacher who purchased this unit suggested that I also include worksheets with words and definitions, but blanks for sentences so students could come up with their own. I thought this was a great idea, so those are included also.
I made this with high school students in mind, but I've gotten feedback from middle school teachers who use it successfully, as well.