...Another is to present a simpler problem with the same concept, such as posing 1/3 + 1/4 to a student who answers 7/12 + 4/5 = 11/17. Yet another is to consider an extreme case. It may not be obvious that a triangle cannot have lengths 17, 15, and 33, but it is when you consider 1, 3, and 10. (read more)
...I prefer to teach one-on-one though I have also conducted classes with groups of students of up to twenty. I prefer to teach one hour at a time to a student or a group - if need be multiple sessions of one hour each may be held each week. I typically start with the student's homework questions,... (read more)