Introduction
Good afternoon students. in our todays' lesson, we will be starting a new topic called human evolution. you have studied the human skeleton in grade 10 and differentiated between a species and a population in our previous lesson. let us watch the below three minutes video so that you can be able to understand the important concepts of human evolution.
Task
Task 1
Please complete the following task.
The diagram below shows possible evolutionary relationships among some hominids.
1.1. What is this type of diagram called? (3)
1.2. how many of EACH of the following are represented in the diagram above:
(a). Genera. (2)
(b). Homo species. (2)
1.3. Name the species that have Paranthropus aethiopicus as a common ancestor. (2)
1.4. when did:
(a). Ardipithecus ramidus became extinct. (2)
(b). homo erectus first appear. (2)
1.5. Name the hominid species that existed at the same as homo sapiens. (2)
Total mark: 15
Process
Use the following links to supplement your information and to complete the above task:
Human evolution: interpretation of phylogenetic trees.
Refer to PowerPoint slides on human evolution:
https://drive.google.com/file/d/1FvxxXDtxB_HaoPMdXk1Cc2- NWULRAEIt/view?usp=sharing
Refer to pages 19-22 in the Grade 12 Telematics learner workbook 2016:
https://drive.google.com/file/d/17qzbJGZXTm7VNDzAfe59wpkj-WGN2wAc/view?usp=sharing
Refer to anatomical differences between African apes and humans:
https://drive.google.com/file/d/1rUxWBWFDcDni5baGrv3YaYa 7FS_jIhuP/view?usp=sharing
Evaluation
Marks grid / Rubric.
| Questions | Mark allocation |
| 1 | 2 marks (student must give correct definition) |
| 2 |
(a). 2 marks ( give the number of genera in the diagram). (b). 2 marks ( give the number of home species in the diagram). |
| 3 | 2 marks ( Name the species that have Paranthropus aethiopicus as a common ancestor ). |
| 4 |
(a). 2 marks. ( state the year in which Ardipithecus ramidus became extinct ). (b). 2 marks. ( state the year in which homo Erectus first appeared ). |
| 5 | 2 marks ( Name the hominid species that existed at the same as homo sapiens). |
Conclusion
Give students a homework exercise.
Students must write a conclusion based on what they have learned in today's lesson.
Please study and understand Human reproduction (Structure of male and female reproductive systems) for our next lesson.
Click the link below and watch the video in preparation for our next lesson.
Explanation of human reproduction system:
https://www.youtube.com/watch?v=Lbv6WbjIQW0
Refer to one-pager on male reproductive system:
https://drive.google.com/file/d/1PIZtHN1Tvdm_xWPbrIeJnfMCvUyX5Fli/view?usp=sharing
Credits
Teacher Page
For further questions and inquiries please email:
mzingisi55@gmail.com
Mr mzingisi kwekwana 219079773