Deal with declension charts (I am, he/she is, we are, etc.) in the same way you dealt with example sentences; turn them into the same kinds of picture flash cards described above. The only real difference is that your grammar book won’t supply you with every example sentence you need. So make those sentences yourself. Take an example sentence from your grammar book (I am a student) and turn it into a bunch of new sentences (She is an architect, he is a duck inspector).