A quick and engaging way to Check for Understanding. Students use
personal white boards, response boards, or plastic sleeves/pockets to
solve, work out, and answer the given problem. I display the problem(s)
from the PPT, students work the problem, and after a countdown
the students are asked to raise their boards. Then I reveal
the answer and process. I have the students
keep tally (right and wrong) in the corner of their boards.