Afifth-grade teacher writes the problem 56 ⋅12 on the board. students begin to solve the problem mentally, and as each student finds a solution, he or she signals the teacher with a thumbs-up signal. when almost every student has given a thumbs-up signal, the teacher has the following dialogue with a student. teacher: “billy, what answer did you come up with? ” billy: “792.” teacher: “great job, billy! that is the correct answer. raise your hand if you found 792 to be the product, like billy.” almost every student in the class raised a hand. the teacher writes the next problem on the board. which instructional adjustments can the teacher make to best assess all of the students’ understanding of multiplying two-digit numbers?