1. Ask a female family member who is already menstruating about the date when
her first day of menstruation occurred.
2. From the date she gave you, try to plot her menstrual cycle on the calendar.
Directions:
Friday
Saturday
Sunday
6
7
Monday Tuesday Wednesday Thursday
5
4
1
2
3
13
14
12
11
8
9
10
20
21
19
18
15
16
17
27
28
26
22
23
24
25
29
30
31
3. Compare the menstrual cycle you made with that of your classmates.
Answer these questions:
a. Is the menstrual cycle you plotted the same with that of your classmate? What does this
indicate?
b. Why is it important for girls to know how to plot their menstrual cycle?​