Four Corners- Who’s
Correct?- Four Corners is a great informal assessment tool. Choose a problem centered around the skill on which you are
currently working. Show four different solutions to the problem, each labeled
with a fictitious student’s name. Ask students to complete the problem
themselves. Once all students have completed the problem, have them go to the
corner of the room for the student whose response they believe to be correct.
After all of the students are in place, in turn, ask them to justify why their
person is correct. As students listen to the justifications, they should be
able to determine the correct response, if not, have the groups discuss why
they believe the other responses are incorrect.
Example:
Three students
are working on this problem after school at the YMCA:
6 + 3[(4 + 5) – 1] + (12 ÷ 6)
Each student
recorded a different answer for the first step. Who is correct?
Marco: 9[(4
+ 5) – 1] + (12 ÷
6)
Dominique: 6 + 3[(4 + 5) – 1] + (2)
Alex: 6 + 3[9 – 1] + (12 ÷ 6)
Sharon: 6 + [(12+ 5) – 1] + (12 ÷ 6)
