Open the resources menu for that concept. Access the quiz for that chapter. Use the drop-down menu to move from concept to concept within a chapter. Return to the unit menu to choose a different chapter. Return to the main menu to choose a different unit.
Many figures are interactive.
Actions you are to take are emphasized in bold in the caption. Blue text indicates that a particular button has been chosen. The Back button allows you to return to a previous image in the interaction or to rest the interaction. Each concept has a resource menu that lists related topics and glossary terms. Clicking on the name of a related topic will open a new window displaying the related concept.