We will use interactive grading. The Reader will announce homework grading times, and each homework group will sign up for a time slot. In the case of group size of two, both members of the group must be present during the grading time. If a member misses that time, the other group member will be graded, but the one who misses the time must reschedule a time in order to receive credit for the assignment.
During a group's time slot, the group will explain their homework solution, and in the case of programs or circuits demonstrate that it works. In the case of mathematical homework, the group will explain the reasoning behind the work. The Reader will ask the group questions to confirm that they all understood what they did. For example, such questions might ask why you wrote your program in a certain way, what the roles of the variables are, what numerical values the variables may have at times specified by the Reader, why you did not choose certain alternative designs, and so on.
The Reader will assign separate grades for each group member. Normally these grades will be identical, but if there is a substantial disparity in the levels of understanding the different group members have regarding the assignment, the Reader will assign different scores to each member.