Sweating ISA

1. Sweating ISA Worth 25%

2. What is an ISA? It is a controlled assessment worth 25% - it is the coursework aspect of your course

3. Stages of the ISA • Planning and research – all your information needs to be written on the candidate research form. • Reporting on the planning – this will be a 45 minutes test with a total mark of 20. You will need to come up with your results table at the end of this. • Practical work – this can be done individually or in small groups • Processing data – this is where you do your calculations and graphs • Analysing results – This is another test paper which will last 50 minutes and will give students a mark out of 30.

4. Scenario • Topic of investigation specification link • Section B3.3.2a Sweating helps to cool the body • A fitness coach wants to be able to explain to his clients how sweating keeps us cool. He wants to model how a factor affects how quickly sweating cool the body.

5. What do we know about factors that affect how quickly sweating cools the body. Cooling What does sweating do?

6. Hypothesis You need to develop your own hypothesis to investigate the use a model to investigate a factor that may affect how quickly sweating cools the body. You will need to produce your own hypothesis and research a plan.

7. Background Research. You will need to reference (name) two sources that you used for your research. One of these sources must be a method. Where could we find information to help us with this problem? Possible search questions: • Factors affecting the rate of cooling from sweating • Method for testing a factor that affects how quickly sweating cools the body.

8. Background Research. These could be found in: • Textbook (Write the title of the book and the author(s)) • The internet. You need the full web address such as…. www.eliseberrill/myfavourite/teacher You will need to write up your research on the ‘candidate research form’. You can gather the information in your books and then complete the form neatly. Extension: which of the two sources was the most useful and why

9. Example

10. Task • You have 15 minutes to do some research and then we will feedback what we’ve found

11. Background Research – this needs to be written in your books You must explain which one of your sources of information is the most useful. You must comment on both, such as… Source 1 gave me a complete method of what to do. Source 2 gave me information about how solar cells work and what affects how much voltage they make.

12. From your background research you need to decide…. • How are you going to investigate the hypothesis? • How did you come up with your hypothesis? • What is your method going to be? • What equipment will you need? • What are your variables? • How are you going to make your test fair? • Are there any risks to your method?

13. Double check • Independent Variable • Dependent variables • Control Variables • Equipment List • Method Bullet pointed • What measurements will you take? • How will you make this a fair test • Risk associated with the practical • Preliminary table for your data

14. Double check – 25 mins • You have completed your sheet with hypothesis, sources of information and method on. • Can you say what a preliminary investigation is? • Can you explain your method with an equipment List • Name you variables : Independent Variable, Dependent variables and Control Variables • How will you make this a fair test • Risk associated with the practical • Why we might compare our results once completed • Preliminary table for your data (practice) • You may be assessed on your use of good English

15. Stage 2 Reporting on the planning (Section 1- 45minutes, 20 marks)

16. Stage 2 • You need to complete the test using their research notes. • Table of results – marked before the practical stage • Use full titles for table i.e. ‘Time taken for reaction to complete (s)’ not just ‘time (s)’

17. Stage 2 • I have marked section 1 of the ISA before you start the practical as I needed to know whether the students’ method is workable

18. Stage 3 Practical

19. Stage 3 • Any student who does not take part in the practical cannot be given any marks for section 2 of the ISA. • A new blank table • If you use a different method, you do not lose marks for section 1. • Remember to repeat any odd (anomalies) results

20. Stage 4 Processing data

21. Stage 4 • You now need to draw a graph of your data. • You get a mark out of 4 • Axis x appropriate scale and labels with units • Axis y appropriate scale and labels with units • Correct marking on of points • Good line of best fit or suggestion of a pattern with a scatter graph • Practise now. Remember to decided what type of graph to draw

22. Results

23. Results

24. Stage 5 Section 2 test ( 50min – 30)

25. Can you remember • Your variables: • Independent – what you’ve changed • Dependent – what you’ve measured • Control - what you’ve kept the same • Anomalies – Did you get any? What do we do with them? • What range did you use? What are the units for your range? What it a good enough range? • What went wrong? How could you improve? • Why didn’t we use a real person? Benefits/problems? • Did you repeat any? – why, why not? • Do they agree with your hypothesis? • How does this link to the context

26. What you need to know • Find out the meaning of these key words using the glossary at the back of your book. • Reliable • Reproducible • Repeatable • How do you deal with anomalies in an experiment • Do your results agree with your hypothesis (the energy content of food depends on the amount of fat in the food)? What evidence do you have to support your answer? Use your results to help you.

27. Stage 5 • Make sure you have read the teachers notes!!! • Students will need: • Research notes • Graph • Table of results • Secondary data sheets • Other students’ data (sometimes not always which is why it is important to read the teacher’s notes.)