Provide hands-on activities for practice and mastery. Check for understanding of concepts and skills by using relevant standard materials, i.e. worksheets, text problems, workbooks, teacher prepared exercises, etc.
Mindmaps of bartering and exchange
Objective: To identify personal experiences with trading (bartering) and when it is used.
Activity: Teacher-led listing of student's experiences (including those of their parents) with trading personal and household items. Put a "*" next to those experiences which worked and a "-" next to those which did not.