Transcript Document
Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original Cook Part 1: What’s cooking Engage, elicit and explore sections A teaching sequence from the Cook! unit of upd8 wikid, the online 11-14 curriculum from upd8 Untrialled version 1.0 May 2008 This activity is at ‘beta’ stage, for trialling and evaluation purposes only. It may need some modifications to work fully in the classroom. Please look out for revised version 2.0, available from www.upd8.org.uk Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original Highlights of this sequence •Approaches familiar physics through an involving narrative of celebrity chefs heating food •Assesses understanding in a real context – students explain cooking methods using particles •Exploratory,‘constructivist’ practical work •Practises How Science Works skill of using scientific models Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original 7E Learning cycle : What’s Cooking ENGAGE EXTEND [Apply ideas about heat transfer to different contexts.] ELABORATE Students become Ally a trainee chef at Gastro Heaven. EVALUATE The chefs test Ally’s understanding of the processes that make food hot - AfL Gordo has Ally apply his ‘secrets’ about energy transfer to cooking processes ELICIT The boss, Gordo, finds out if Ally knows how food gets hot and cooks. EXPLORE Ally forms her own ideas about heat transfer to learn Gordo’s secrets Jimella models the heat transfer processes for Ally EXPLAIN Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original The following pages are extracts from the ‘engage, elicit and explore’ parts of the activity N.B. In version 2, post-trialling, dialogue will be rewritten by our scriptwriter and animated Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original Engage Elicit Explore Explain Elaborate Extend Evaluate I’m Gordo – I’m the boss. I hear you’re the new trainee. You’d better be a fast learner – my restaurant’s got 3 Michelins. And I bet you think I’m talking about tyres. Have you got any idea how to cook? 2 Wow! Look at that wonderful food. I’ve no idea how you prepared it. Activity 1: What’s cooking? – engage, elicit and explore sections Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original Engage Elicit Explore Explain Elaborate OK. Your first test – you’d better get it right. Let’s see what you know about food. See these crazy menu items? Tell me which belong on a plate, and which belong in the bin? And then re-arrange the crazy menu items to give a better menu. Extend Grilled Evaluate Egg Stir fry Cheese and tomato Steamed Sprouts Roast Cabbage Fried Lettuce Toasted sandwich Potato Barbecue Corn on the cob Raw Chicken Boiled Toast Deep fried Chips Sort it out! Spit roast Carrots Now! 3 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk Activity 1: What’s cooking? This page may have been changed from the original Engage Elicit Explore Explain Elaborate Not a bad effort… for a novice – but you still know NOTHING about cooking them. Extend Evaluate Steamed Sprouts Fried Egg Stir fry Cabbage Toasted sandwich Cheese and tomato Raw Lettuce Deep fried Chips Roast Potato Spit roast Chicken Boiled Carrots Grilled toast Barbecue Corn on the cob 4 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk Activity 1: What’s cooking? This page may have been changed from the original Engage Elicit Explore Explain Elaborate Extend Evaluate Look at the ten crazy menu items we use. But my SECRET is there’s only 3 ways that food gets hot. Cooking is either direct contact with a hot surface, or hot air or liquid, or heat rays Look at the ten Crazy menu methods we use. But my SECRET is there’s only 3 ways that food gets hot. Roast Barbecue Grilled Deep fried Spit roast Stir fry Boiled Steamed Tell me which secret fits with which method. It had better have good thinking or you’re for it! Fried 5 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk Toasted sandwich Activity 1: What’s cooking? This page may have been changed from the original Engage Elicit Explore Explain Elaborate Extend Evaluate Your cooking ideas are !@%$#%@ . I’m going to see if a week in our gastro laboratory can teach you how food gets hot Jimella will look after you. Hi Ally. You need to work hard at this to find out what IS cooking.. 6 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk Activity 1: What’s cooking? This page may have been changed from the original Engage Elicit Explore Explain Elaborate Extend Evaluate I’ve prepared some activities in the Gastro lab to help you find out how food gets hot. Use the links below to Discuss what you the activities. saw, sort out which of Gordo’s secrets apply to each activity. Do what it says – and think carefully how the heat energy travels. Work in groups then compare theories. You’ve got to know all about Gordo’s secrets. 1 2 7 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk 3 4 5 Activity 1: What’s cooking? This page may have been changed from the original Engage Elicit Explore 1 Light a Bunsen. a) Rising heat – Feel the heat rising above the Bunsen. Hold a spiral suspended from a thread above the Bunsen. Explain Elaborate Extend Evaluate This shows all three of Gordo’s secrets. But which is which? b) Gauze heating – how close can you feel the heating when you put your hand at the side of the flame? Then put the Bunsen under a gauze on a tripod, let it heat up. Again how close at the side can you feel the heating? c) Bench heat – feel how far the heat travels through the bench below the bunsen. 8 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk Activity 1: What’s cooking? This page may have been changed from the original The following page is an extract from the ‘explain’ part of the activity Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original Engage Elicit Explore Explain Elaborate Extend Evaluate Gordo’s third secret Radiation is the Heat radiation travels through space, or term used when heat energy anything transparent – just like light rays can. travels in rays. Radiation can Heat radiation is called infra red rays. travel through anything The rays fall on materials and make them hot. transparent. It does not Heat rays pass need particles to help through the air and through it move. the hole in the card. Heat rays All hot materials travel in straight lines and give out heat rays. You can make heat shadows just feel heat rays when they fall like light. on your skin. The red hot gauze on the tripod gives out lots of heat rays. 5 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk Activity 1: What’s cooking? This page may have been changed from the original The following page is an extract from the ‘elaborate’ part of the activity Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original Engage Elicit Explore Explain Elaborate Extend Evaluate Explain to Gordo how these use his secrets! You’ve got a clue to help and then 5 seconds think before he’s starts shouting !@%$#%@ at you. Use the right words – or he will shout even louder! Clue Halogen hot plate Copper saucepan Which secret it uses It glows bright red. Copper is the best conductor. Put hotter dishes on the top shelf. Oven Heater lamps over servery Griddle Wooden spatula and wok Keep the food in contact with this. These shine gently. Use this and don’t burn your hands. Water bath under servery Steam rises. 9 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk Activity 1: What’s cooking? This page may have been changed from the original The following page is an extract from the ‘evaluate’ part of the activity Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk This page may have been changed from the original Engage Elicit Explore Explain Elaborate Extend Ally has prepared a fine Slices of but simple tender meat celebration grilled under dinner at Hesto’s an electric Resto. It has grill. these foods in it. Evaluate Stir fried vegetables cooked quickly and crisply. A sponge cake for dessert baked in an oven. Draw a large poster of the meal and put diagrams on it to illustrate how the heat travelled to the food. Write a script for Ally to describe how each part of the meal was cooked and how the heat from the cooker was transferred to the food to cook it. Use all the NEW WORDS you have met. 11 Untrialled Beta activity from the Forensics unit of the WikiedScience curriculum © Science UPD8 at www.upd8.org.uk Activity 1: What’s cooking? This page may have been changed from the original