curve graph

1. When we study things on class and we don’t review them again, is easier to forget what we had studied. When we study for mid test or final test we have to review a lot and sometimes study it again because we don’t even remember when we study the topic. I think that the numbers of the curve are accrued. After 30 days of learning a subject we only remember 2-3 percent, but when we see it again you remember it. I think the percentage changes depending in the person. Some people have a better long term memory.
2. The graphs are very confusing for me especially the ones of sin, cos and tan. The inverse graphs of the sin,cos and tan are harder to understand and is easier for me to get confused.
(Elizabeth)