Activating prior knowledge Brainstorming Use of glossaries to learn content- specific vocabulary Methodology Interactive lesson, use of videos, pairwork and group work, whole class activity Scaffolding Read instructions of activities aloud Explain activities, if necessary, in L1 Provide schemes Work in pairs Use of dictionary Provide materials in advance Allow use of L1 for complex tasks Teaching aims To enable learners to describe the most important elements To enable to understand the meaning of the use of symbols To enable to understand the evolution in the use of chemical symbols Tearning outcomes To know the origin of the elements To know some informations about the most common elements To know the meaning of the use of symbols not only in chemistry To be aware, through the use of symbols, of the hazards in laboratory Types of exercises Match definition, cloze, listen to audio/videos, crosswords, summary, Assessment Group assessment (PPT presentation) Individual assessment Final summative assessment Class First class of secondary school Materials and resources Videos, websites, free search on the Internet, dictionaries, science textbook, paper sheets provided by the teacher. PC
CONTENT Safety in the lab The origin of the elements The use of symbols in alchemy The periodic table of elements
Culture Surfing the Internet Reading articles on scientific magazines Listening to videos Safety in lab Risk icons
Communication Language through communication New vocabulary Organize a PP presentation Presenting evidence Language for communication Questioning, answering, debating Defining, describing Language for project work Language of communication Content- specific vocabulary Glossary Expressing ideas
Cognition Application ( collect info from different sources,analyse and rielaborate themin a personal way) Evaluation ( risk connected to the different hazard symbols; use of appropiriate measures handling chemicals) Comprehension (describe elements. Describe the periodic table of elements) Knowledge (names of the elements)
The elements: the bricks of the Universe Symbols: the use of symbols to identify the elements The periodic table of the elements
What is an element? Where do the elements come from? You have five minutes to think about it with your classmates and then express your ideas to the class
Personal Point of View We use these words and phrases to express a personal point of view: In my experience… As far as I'm concerned… Speaking for myself… In my opinion… Personally, I think… I believe that… What I mean is…
General Point of View We use these words and phrases to express a point of view that is generally thought by people: It is thought that... Some people say that... It is considered... It is generally accepted that...
Agreeing with an opinion We use these words and phrases to agree with someone else's point of view: Of course. You're absolutely right. Yes, I agree. I think so too. That's a good point. Exactly. So do I. That's true. Neither do I. I agree with you entirely. That's just what I was thinking.
Disagreeing with an opinion We use these words and phrases to disagree with someone else's point of view: That's different. I don't agree with you. However… That's not entirely true. On the contrary… I'm sorry to disagree with you, but… Yes, but don't you think… I'm afraid I have to disagree. I'm not so sure about that.
Before watching the video each student is given a number (atomic number) ( Beware the number! Look at the video and remember which image is shown in the video when the element appears Surf on the Internet in order to look for some info about the image and relate to the class
Whole-class activity: read the term and provide a suitable definition. TERMDEFINITION element atom molecule matter
What is a symbol? 1.A picture or a shape that has a particular meaning or represents a particular organization or idea The dove is a symbol of peace 2.A letter, number, or sign that represents a sound, an amount, a chemical substance Fe is the chemical symbol for iron 3.Someone or something that represents a particular quality or idea Space exploration provides a symbol of national pride
Write at least two examples of symbols you know. For example: Angelina Jolie is a sex symbol The cross is a Christian symbol
The word alchemy (from which chemistry is derived) is not sure. Probably it comes from the Arabian al- kimia, referring to the fertile black Nile delta soil It is the ancestor of the modern chemistry, a mixture of magic,superstition and scientific experiments
From the early history of chemistry (alchemy) to the end of the 19 th century the language and symbolic representation of chemistry has been in constant development. Chemistry has always been a subject which has relied on graphical representations –e.g. alchemical symbols. The evolution of nomenclature and symbolism has reflected our growing understanding of chemistry.
TONGUE-TWISTER Three witches watch three Swatch watches. Which Witch watch which Swatch Watch?
The plural form of most nouns is created by adding the letter s: Snake-snakes Girl-girls Nouns that ends in: ch, x, s, z or s-like sounds will require an es: Witch-witches Box-boxes Kiss-kisses WORKING ON LANGUAGE
Nouns that ends in a vowel + y take the letter s: Boy-boys A lot of nouns that ends in o takes es: Nouns that ends in a consonant + y drop the y and take ies: Baby-babies Potato-potatoes Hero-heroes But...
Gold and silver are associated to the Sun and the Moon because of the color and for the value of these metals Lead is associated to Saturn for its high weight (Saturnus moves very slowly) Iron is associated to Mars, the god of war Copper is associated to Venus, because it was extracted from Cyprus, the holy island to Venus
H He Li Be B C N O F Ne Na Mg Al Si P S Cl Ar Hi He Lied Because Boron Could Not Oxidize Fluorine. New Nations Might Also Sign Peace Securit y Clause. Arthur King Can. H Li Na K Rb Cs Fr Highly Nasty Kids Rub Cat ' s Fur Be Mg Ca Sr Ba Ra Bearded Muggers Came Straight Back Rapidly
Turn to pag. 20 (issue november 2015) in the digital edition at world.scholastic.com and do the game with two teamswww.science world.scholastic.com If the teacher doesnt have the subscription give the paper sheets to the class
Remember for your safety you should know the following symbols They are written on the bottles containing reagents and solvent