- 课时1：Topic1 apparatus-1 23:16
- 课时2：Topic1 apparatus-2 15:13
- 课时3：Topic1 apparatus-3 11:36
- 课时4：Topic1 apparatus-4 34:54
- 课时5：Topic1 apparatus-5 30:45
- 课时6：Topic2 tabulating data,sf and graphing-1 19:14
- 课时7：Topic2 tabulating data,sf and graphing-2 21:00
- 课时8：Topic3 uncertainty 22:21
- 课时9：Topic4 subject specific vocabulary 35:13
- 课时10：Topic5-safety precautions 30:02
