ALL ABOUT MY EGGS Àrea: Ciències - Interdisciplinari Autoria: Rosalia Anglès Vidal GEP 2016-2017 Grup d'experimentació per al Plurilingüisme (1er any) Projecte final 1
ALL ABOUT MY EGGS Material elaborat durant la realització de la formació adreçada als docents que implementen el pilotatge del GEP (Grup d Experimentació per al Plurilingüisme) durant el curs 2016-2017, realitzada amb el/la formador/a del ( triar l entitat corresponent: British Council / CUP/ OUP/UAB) SG de Llengua i Plurilingüisme Servei de Llengües Estrangeres Gener 2017 Els continguts d aquesta publicació estan subjectes a una llicència de Reconeixement-No comercial-compartir 3.0 de Creative Commons. Se n permet còpia, distribució i comunicació pública sense ús comercial, sempre que se n esmenti l autoria i la distribució de les possibles obres derivades es faci amb una llicència igual que la que regula l obra original. La llicència completa es pot consultar a: http://creativecommons.org/licenses/by-nc-sa/3.0/es/deed.ca 2
Ten tips for learning success Create a good atmosphere where students feel free to ask, give opinions and create debates in order to share information. Learn biology concepts through real life contexts. Work individually and collaboratively, in pairs and in groups. Use a high range of diverse materials and be able to recognize and use reliable sources of information. Use LTK in classroom (Learning Technologies Knowledge) such as PDA s, mobile phones, computers and tablets. Carry out a high range of diverse activities (asking for diverse cognitive levels) to help you understand scientific information. Use an appropriate language and scientific vocabulary to explain information to others (orally and in writing). To use a portfolio to organize the work. Take greater responsibility for learning by assessing own and peer's work (use of rubrics). To promote the creativity of students. 3
Selected text: meaning of the eggs code EGGS CODE Have you ever seen that there is a code on the eggs that you buy? Do you know the meaning of it? The European Union has defined an egg code that consists of a number indicating the method of production a two letter code for the country of origin a registration number indicating the hen laying establishment The egg stamp is required in the EU on all class A eggs unless these are sold directly on the farm. Let s focus on the first number! The first number indicates the farmer s method of production. It can be: 0 Organic 1 Free range 2 Barn System 3 Cage System Source: streetsandminds.wordpress.com https://youtu.be/xmg3gjr-8fq (Turn on the subtitles) 4
Activities 1. Recalling: what can you remember? (Cognitive level: Literal or explicit comprehension, identifying content) Activity 1: Open your fridge at home and take a picture of your eggs. Draw the code and answer: How was the hen breed? What country is your egg from? What province was your egg laid in? Activity 2: Answer the following questions about the video: Can hens in battery-cages do their normal behaviours? Why have many producers decided to convert battery-cages into cage-free system? Does battery-cage system affect only hens or do they also affect humans? What kind of microorganism is responsible for salmonella? If you eat battery-cage eggs, do you have more or less probability of being infected by salmonella? Do battery-cage eggs mean more or less pollution? Are the producers, food-manufacturers and restaurants doing anything about this? 5
2. Understanding: what do you understand? (Cognitive level: Reasoning, cause & effect, or implicit meaning) Activity 3: Look at the next pictures and try to identify what number the eggs will have: 6
Activity 4: Fill in this table with at least 2 advantages and disadvantages of each kind of eggs. Think about the hens, the farmer and the consumers. Advantages Disadvantages 0-1 2-3 3. Analysing: What do you think? (Cognitive level: Interpreting, evaluating, creating or developing critical thinking) Activity 5: Let s make people conscious about the eggs they eat! Work in pairs. Imagine that a big supermarket wants to give the consumers leaflets to make them conscious about the meaning of the egg code. Wake up your creativity and design a leaflet! 7
Activity 6: Two years ago I ate mayonnaise and hours later I felt very bad, with vomits and stomach ache. Look for information on the internet and fill in the chart: NAME OF ILLNESS: CAUSES INFECTIOUS AGENT CAUSES SOURCES OF INFECTION SYMPTOMS DIAGNOSIS TREATMENT PREVENTION Most supermarkets have the eggs outside a fridge, but most of us put them in the fridge when we arrive home. Once you have all this information, try to answer: Is it better to keep the eggs inside or outside a fridge? Justify your answer. 8
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Extension Students work in 6 groups of 3 students. Each group is given a card with different information about chicken reproduction. They have to read it, understand it and talk to each other to clarify the meaning of unknown words and sentences. Then they make expert groups. They make 6 groups of 3 students: in each group there will be students with different cards. They have to explain to the others the meaning of the card. Then they have to build up a poster summarizing the information. An A-C-E group join a B-D-F group, and exchange the information of the posters. Six Things You Didn't Know About Chicken Reproduction A B C Only one gonad? Usually males animals have 2 testes and females 2 ovaries. Hens only have one functional ovary (probably because it's more practical for flight: they need to be light in order to fly). For most male birds, the right testis is smaller than the left. But not in roosters, probably because chickens are landdwelling birds. No penis! Roosters and hens don't have external genitalia. Instead procreate using an external orifice called a cloaca. Sperm is transferred into the female reproductive tract but no penetration is involved. They also use their cloacae for defecation. But don't worry: chicken eggs do not get covered with faeces on their way out. Two yolks = twins? Chicken "twins" occur when the ovary releases two yolks at the same time and a single shell forms around them. Once the chicks are ready to hatch they have a problem: there is not enough space for both of them, so they fight each other. Usually, both twins end up dying. 10
Six Things You Didn't Know About Chicken Reproduction D E F Egg-laying machines! A hen hits puberty only 18-24 weeks after hatching out of an egg herself. It only takes about 26 hours for a hen to make an egg, and she can start producing another one 40-60 minutes later. Hens lay up to 300 eggs a year. Comparatively, turkeys are lazy: lay less than 100 eggs a year. Eggs all year? After a rooster inseminates a hen, her eggs will be fertilized for up to four weeks. This is because the sperm remains viable for about 30 days, stored in "sperm nests" along the hen's oviduct. However, hens don't actually need roosters in order to lay eggs. They only need light. Hens are programmed to lay eggs in the spring and summer. Farmers stimulate summer days in the farms all year around. Brown or white? Out of the 26 hours it takes to make a chicken egg, 20 of those hours are required to make the shell: so it's pretty important! Differing types of pigment give different colours. Egg colour is useful because it's is an expression of the bird's fitness. 11
Project: collaborative problem solving Activity: Let s inform about the eggs code! Your role: GreenMarkt is a supermarket brand with stores all around Europe. They sell ecological and ethical food. They want to contract you in order to stand up in front of the eggs shelves informing the customers about the meaning of the eggs codes. They want you to tell the customers the advantages and disadvantages of each type of egg and suggest the customers to buy the 0 or 1 eggs. Your tasks: TASK 1 - You have to design a leaflet-triptych which you should give to the customers trying to persuade them about the advantages of 0-1 eggs. The triptych, according to GreenMarkt instructions, should include the next information: A picture of an egg with the information about the meaning of the numbers and the letters. An explanation of the advantages and disadvantages of the 0-1 and 2-3 eggs. An explanation of Salmonellosis and its relation to eggs numbers. You should include: cause, source of infection, symptoms, prevention. A brief explanation about what a bacteria is. A picture showing the internal parts of an egg with the names. You will work in groups of 3. Once you have designed your leaflet, be sure you have included all these items. Use the Checklist (auto-assessment). 12
TASK 2 Once you ve designed your leaflet and Greenmarkt has given positive feedback, it s time for job! Think about possible questions (at least 5) customers could ask you when you explain them the information. Prepare a performance to practice before going to the store. Two of you will be the ones explaining the information of the triptych and the other will be the customer. Your classmates, using a rubric, will assess this part of the task (peer-assessment), and they will decide whether you get the job or not. 13
Assessment Rubric (peer-assessment): Organization Subject knowledge Graphics Eye contact Elocution Posture Source 2,5 p 5 p 7,5 p 10 p Audience cannot understand presentation No idea. Student cannot answer questions. No graphics. Reads all of report. Speaks too quiet, too loud, too fast. Makes many mistakes. No use of movement. Nervous tics. No commented. Audience has difficulty following presentation Little knowledge. Can answer rudimentary questions. Graphics that rarely support text. Reads most of the report. Audience have difficulties to follow Occasionally uses some movement: facial, posture, gestures,... Copy and paste. Too long. Information presented in logical sequence Good knowledge. Can answer many questions. Graphics related to text. Maintains eye contact but frequently returns to notes. Voice is clear. Pronounces most words correctly. Usually uses some movement: facial, posture, gestures,... Name or web precisely said. Presented in logical and interesting sequence Full knowledge. Answer with explanations and elaboration. Graphics explain and reinforce text. Maintains eye contact with audience. Clear Voice and precise pronunciation. All audience can hear. Actively uses movement: facial, posture, gestures,... to focus attention. Name, day, author, precisely said. 14
Checklist Checklist (auto-assessment): Once you have designed your leaflet, be sure you accomplish all these requirements: Content checklist: 1.-Does the leaflet make an effective visual impact on the reader? 2.-Is the message clear? 3.-Does it give a detailed explanation of the meaning of the eggs code? 4.-Does it offer a clear explanation of the advantages and disadvantages of each type of egg? 5.-Does it offer any suggestion? 6.-Is the letter big enough? 7.-Is it coloured, and well coloured? 8.-Are there enough images to allow a better understanding? Teamwork checklist: 9.-Do all members of the group participate with ideas? 10.-Do all the members of the group participate doing the leaflet? 11.-Do you ask each other for solutions? Language checklist: 12.-Is the written information on the leaflet accurately spelt? 13.-Is the written information grammatically correct? 14.-Does the leaflet use the language (specialised terms) appropriately? 15