Learners reinforce the matching concept in accrual basis accounting through a drag-and-drop exercise.

In this interactive object, learners read a brief summary of the principles of cash basis accounting and then check their knowledge of transactions in a drag-and-drop exercise.

In this interactive object, learners demonstrate their knowledge of the in-depth checklist a pilot uses on a regular basis.

In this animated activity, learners examine what gases are composed of and how their particles interact. They also consider several assumptions that form the basis for the Kinetic Theory of Gases.

In this interactive object, learners demonstrate their knowledge of the in-flight checklist a BE-76 pilot uses on a regular basis.