Curriculum, instruction, and assessment: the three fundamental components of education, whether online or face to face. Author Milton Chen calls these the “three legs of the classroom stool” and reminds us that each leg must be equally strong in order for the “stool” to function properly, balanced and supportive. Habitually, the questions What am I going to teach and How am I going to teach it? weigh heavier on an instructor’s mind than How will I assess? As a result, the assessment “leg” of the classroom stool is often the weakest of the three, the least understood and least effectively implemented.