how to make a simple circuit for students

15:15

1:31

6:55

6:55

6:59

6:48

16:02

3:45

3:45

3:45

16:58

15:44

3:45

11:21

11:21

3:22

2:47

6:26

9:21

3:05

8:44

5:40

3:05

3:05

2:10

3:54

2:51

3:41

4:33

4:30

6:33

1:42

2:11

2:14

3:13

2:05

2:41

2:54

14:35

16:23