“Boards in the air!” Ms. Boyd checks for understanding quickly among her students, assessing their comfort with the third problem. Nineteen out of twenty boards are in the air and Ms. Boyd accurately assesses their understanding. One board is missing. Does this scholar not know the answer? Did she not hear the instructions? There’s only one way to tell; wait for 100% of scholars’ boards. “I’m waiting for 100%. I need one more board.” The last board quickly makes its way up in the air and the answer is correct. “Great job, scholars! All of us found the correct answer. Let’s move on to number 4.” Because she waited for 100% of scholars to comply with her directions, Ms. Boyd is able to progress forward with full confidence that all of her students are paying attention and understanding the content.