© CSE and ASE 2011 This page may have been changed from the original reasoner Presents 1 Title slide A tool for GCSE beta version

ELICITSTARTER 2 Objectives ● Recall that sunbeds give off UV light which can damage the skin. ● Comment on how confident you are in a conclusion based on scientific evidence. ● Suggest what extra evidence is needed to make the conclusion more secure. objectives 2 © Association for Science Education and Centre for Science Education 2011 Objectives Tips: Use PowerPoint’s ‘Outline’ tab for the lesson stages Fonts not correct? See technical notes (slide 18)

3 © Association for Science Education and Centre for Science Education 2011 The Government has banned sunbeds for under 18s. But some people think they should pull the plug completely... on healthwatch, this week Sunbeds or deathbeds? Starter: stimulus

Definitely. And I don’t want others to suffer – not knowing if they’ll live or die. the programme is about ellie, 23 Abi: “Do you think sunbeds caused your skin cancer?” Starter: stimulus 4 © Association for Science Education and Centre for Science Education 2011

you’re a researcher on Our programme must start with a strong claim. What does this graph show? What might cause this trend? Cancer trends Starter: task © Association for Science Education and Centre for Science Education Producer

Now help me write the intro about the science of UV light. © Association for Science Education and Centre for Science Education Great! Our claim is: Sunbeds are the cause of more people getting skin cancer. SS1 – 3 Main 1: task Producer more science Find out how sunbeds could cause skin cancer.

7 © Association for Science Education and Centre for Science Education 2011 confusion in the office There are so many graphs and tables, what do they all mean? I’m sending you on a training course so you can figure it out! Main 2: Task begin training © Association for Science Education and Centre for Science Education Producer

8 © Association for Science Education and Centre for Science Education Main 2: training1 % of UK people who regularly use sunbeds SS4 check evidence I’ll talk you through the first piece of evidence. NO support Does each piece of evidence support the claim*? A LITTLE support Yes A LOT of support Yes No More than 1 piece of evidence1 piece of evidence Is there evidence to support the claim*? Yes

9 © Association for Science Education and Centre for Science Education Main 2: training1 SS4 summarise % of UK people who regularly use sunbeds NO support Explain HOW WELL the evidence supports the claim* overall. Explain why the evidence opposes the claim* or is irrelevant. A LITTLE support A LOT of support

10 © Association for Science Education and Centre for Science Education Main 2: training1 SS4 next steps % of people in the UK who regularly use sunbeds NO support Suggest a test to make the claim stronger. Describe the results you expect if the claim* is correct. Say the claim* could be wrong. Suggest a claim that fits the evidence better. A LITTLE support

11 © Association for Science Education and Centre for Science Education 2011 Producer © Association for Science Education and Centre for Science Education Now finish off the programme outline. Impress me! Main 3: task SS4 –8 Check evidence Summarise Next steps

12 © Association for Science Education and Centre for Science Education 2011 The end The following slides give detailed information linked from the main tasks.

skin cancer in the UK, past and projected Back Cancer graph © Association for Science Education and Centre for Science Education number of people with skin cancer, per year

Ultraviolet ( UV ) light is More science 1 Exposing your skin to UV radiation may give you a suntan. Too much causes painful sunburn. More science 1 electromagnetic radiation. © Association for Science Education and Centre for Science Education

UV exposure increases the amount of vitamin D in your body – this is good for your health. More science 2 But UV also damages your DNA. Over time, this may cause skin cancer. © Association for Science Education and Centre for Science Education

More science 3 The sun’s rays have 3 types of UV – UVA, UVB and UVC. The ozone layer stops about 98% of UV radiation reaching the Earth’s surface. More science 3 © Association for Science Education and Centre for Science Education

More science 4 Like the sun, sunbeds give off... Back More science 4 © Association for Science Education and Centre for Science Education UVA and UVB rays.

technical notes Technical note ● we ‘embedded’ two fonts to make the design work (it’s why the file is big) Titles should look like this Body text should look like this ● if they don’t appear correctly, you can download and install the fonts in 2 minutes: Download title font (dirt2stickler) from Download text font (Am. typewriter) from Note: Click ‘Register’ at top, complete the form and you’ll be taken to the download page

PictureSlide Credit © Centre for Science Education & Association for Science Education The license for this material includes downloading and using it within the institution. For any other usage, permission must be obtained from upd8. Contact upd8 is not responsible for any revision that may be made to the material after it has been downloaded. Gemma Young, Writer Tony Sherborne, Executive editor Picture credits 19 Credits Details of picture20Organisation Photographer 19