1. Y13 Class Lessons 2019
Homeostasis

2. Tuesday 30 April An introduction to Homeostasis
SLO: Define homeostasis and use an example to illustrate the big ideas.
What is homeostasis?
Work through Ppt
Examples of human feedback loops
Homework: Biozone (internal book) pgs 35 – 39
Remember to bring from now on.

3. Wednesday 1 May Revision
Revision for Plant and animal formative test

4. Thursday 2 May
Plant and animal formative test

5. Friday 3 May The role of negative feedback – The Nervous System (communication)
SLO: Explain the role of negative feedback in homeostatic systems – nervous.
Re-cap introduction to Homeostasis
Homeostatic loops – video/taking notes
Homeostatic loops
Nervous communication – Complete worksheet using ppt info and textbook info.
Complete pgs Scipad

6. Tuesday 7 May The role of negative feedback – The Nervous System: Hypothermia
SLO: Explain the role of negative feedback in homeostatic responses – hypothermia: example of a neural based feedback system.
Thermoregulation – complete pg in Scipad
‘Cold water survival’ – video.
Cold water survival
Write a description of a neural-based feedback system (hypothermia) using as many as today’s new words/idea as you can. Use Homeostasis notes and Regulating body temperature ppt to help (have sent to you).
Homework – keywords + research and complete pg 40 Scipad

7. Wednesday 8 May The Nervous system: Hypothermia continued
SLO: Explain the role of negative feedback in homeostatic responses – hypothermia: example of a neural based feedback system.
What hypothermia does to the brain and body
Finish writing descriptions of cold reaction
Hyperthermia Scipad
Hyperthermia overview Up to 9 mins. Take notes
Write a description of what the body does to get back to set-point when overheated

8. Thursday 9 May Hyperthermia
SLO: Explain the role of negative feedback in homeostatic responses – hyperthermia: example of a neural based feedback system.
Hyperthermia Scipad
Hyperthermia overview Up to 9 mins. Take notes Hypothermia overview
Write a description of what the body does to get back to set-point when overheated

9. Friday 10 May The Nervous System in detail
SLO: Explain the role of negative feedback in homeostatic responses - Use of the nervous system for short term quick responses
A brief introduction to the nervous system
Nervous system ppt
Complete worksheet as we work through the ppt

10. Tuesday 14 May Hormonal communication
SLO: Explain the role of negative feedback in homeostatic responses (hormonal system).
The endocrine system – introductory video.
How the endocrine system works
‘Hormonal control’ ppt
The endocrine system – glands video
Endocrine glands
Textbook reading pgs
Research one example (and summarise) of an endocrine-based homeostatic response.

11. Wednesday 15 May Hormonal communication
Finish yesterdays lesson
Reading on hormonal communication

12. Thursday 16 May Muscles as effectors
SLO: Describe how muscles work as effectors in a homeostatic system
Overview so far Homeostatic control systems
Muscles as effectors – ppt
Working through ppt, video and worksheets on thermoregulation.
Read textbook chapter 18, pgs 176n – 191 and do ‘Test your basics’

13. Friday 17 May Thermoregulation 2
SLO: Describe the homeostatic systems that operate to regulate body temperature (thermoregulation).
Working through ppt, video and worksheets.
Homework: (continue working on this) Read textbook chapter 18, pgs 176n – 191 and do ‘Test your basics’ and
Workbook Unit 2, pgs

14. Friday 10 May The homeostatic response to exercise
SLO: Describe the homeostatic response to exercise.
Homework: Set point, hyper and hypo
Feedback loops: key terms
Feedback loops: toilet cistern example and questions
Taking body measurements/exercise
Homework: keywords + Use one of the hyper/hypo systems to draw a feedback loop using the correct terminology.

15. Friday 10 May Human feedback loops
SLO: Explain the role of negative feedback in homeostatic responses.
Homework – sharing examples.
Exercise – finish collecting results/meaning.
Examples of human feedback loops.
Questions on human feedback loops.
Textbook - Read pgs and complete ‘Test your basics’.
Homework – For the week, work through workbook pgs

16. Wednesday 15 May Comparing nervous and hormonal communication
SLO: Explain the role of negative feedback in homeostatic systems – nervous and hormonal.
The endocrine system – glands video.
Complete worksheet pgs 62-63
Research one example (and summarise) of an endocrine-based homeostatic response.
Create a compare and contrast map for nervous and endocrine system responses.

17. Tuesday 14 May The role of negative feedback in homeostatic responses
SLO: Explain the role of negative feedback in homeostatic responses.
Homeostasis ppt – re-cap so far.
What exactly is negative feedback?
Definition and example.
What’s the difference between positive and negative feedback loops?
Control systems.
Drawing basic negative feedback loops – peer assessed.
Textbook - Read pgs and complete ‘Test your basics’.
Homework – For the week, work through workbook pgs

18. Thursday 16 May Comparing nervous and hormonal communication
SLO: Explain the role of negative feedback in homeostatic systems – nervous and hormonal.
Finish answers.
Use Compare and contrast map to compare the nervous and hormonal systems.

19. Friday 17 May Comparing NS/HS Muscles as effectors
SLO: Explain the role of negative feedback in homeostatic systems – nervous and hormonal.
Half period – finish compare and contrast maps writing exam-type answer (Compare and contrast the NS and HS using examples).
Peer review.

20. Tuesday 21 May Group work – other systems
SLO: Describe the homeostatic systems that operate to regulate blood pressure, osmoregulation and respiratory gases.
Work in groups of 3 to each produce a summary sheet on another homeostasis system
Activity on next slide

22. Wednesday 22 May Finish group work
Finish summary sheets and hand in for photocopying
Complete any incomplete pages in Scipad internal workbook for homeostasis

23. Thursday 23 May Homeostasis wrap-up
Summary of topic
Advice on Formatives and Summatives

24. Friday 24 May – Thursday 30 May Formative

25. Friday 31 May Going over formatives

26. Tuesday 4 June – Friday 7 June Summative

27. Thursday 23 May Thermoregulation 3
SLO: Describe the homeostatic systems that operate to regulate body temperature (thermoregulation).
Work through ppt on thermoregulation
Activities (demonstrations from worksheet)
Homework: Complete worksheet up to research task

28. Friday 24 May Thermoregulation experiments
SLO: Describe the homeostatic systems that operate to regulate body temperature (thermoregulation).
Thermoregulation experiment
Finish Thermoregulation ppt
Homework: (continue working on this) Read textbook chapter 18, pgs 176n – 191 and do ‘Test your basics’ and
Workbook Unit 2, pgs

29. Tuesday 28 May Hypothermia and hyperthermia
SLO: Describe the homeostatic systems that operate to regulate body temperature (thermoregulation).
Experiment – analysis
Finish thermoregulation ppt
Research and write a report on both hyper and hypothermia.
Use guidelines from page 71 in your handout.
Homework: (continue working on this) Read textbook chapter 18, pgs 176n – 191 and do ‘Test your basics’ and
Workbook Unit 2, pgs

30. Wednesday 29 May Hypothermia and Hyperthermia
SLO: Describe the homeostatic systems that operate to regulate body temperature (thermoregulation).
Research and write a report on both hyper and hypothermia.
Use guidelines from page 71 in your handout.
Homework: (continue working on this) Read textbook chapter 18, pgs 176n – 191 and do ‘Test your basics’ and
Workbook Unit 2, pgs 99 – 105

31. Thursday 30 May Hyperthermia and Hypothermia
SLO: Describe the homeostatic systems that operate to regulate body temperature (thermoregulation).
Research and write a report on both hyper and hypothermia.
Use guidelines from page 71 in your handout.
Homework: (continue working on this) Read textbook chapter 18, pgs 176n – 191 and do ‘Test your basics’ and
Workbook Unit 2, pgs 99 – 105