You can claim only one education amount for each calendar month you are registered, regardless of how many programs or educational institutions you attend in that month.
If you attended two qualifying institutions during the same month, you can only claim the education amount for one institution/program. If you attended two sequential programs that overlapped, claim each calendar month that you attended.
Example: Your T2202 from College A shows 4 part-time months (from January through April). Your T2202 from College B shows 3 part-time months (from April through June). Claim 6 months total, one for each calendar month you attended. You cannot claim 2 months for April.