When was it invented教案

ss: that’s impossible.t: yes, we live in a world of inventions. these inventions make our life easier and more comfortable. in this unit, we will learn some inventions and their history. first, let’s get to know some new words.step ii  card game ask the students to play a card game to help them remember the new vocabulary of this unit.    t: close your books. here are some cards. on each card there is a word with english spelling. when i hold up a card, you must tell me what it means in chinese, how to read it and some words related to it. are you clear?show the cards to the students one by one. correct their mistakes in pronunciation and understanding.…step iii  practice the new vocabulary ask the students to explain in their own words the words in section a in the workbook.t: very good. please turn to section a of workbook, the first part. discuss these words in groups and explain their meanings in your own words. sample answers:s1: invent: there was not such a thing in the world. someone made it and then there is such a thing. so we can say someone invented it. s2: discover: there is a thing. but people don’t know it or few people know it. someone find it and make it known to people. we can say someone discovers it. s3: scoop: when it is a noun, it means a short-handled tool for taking up and moving something. when it is a verb, it means lifting something with a scoop.s4: mistake: if i say 2 and 2 is 1, you can say i make a mistake.s5: annoying: make one angry, unhappy or uncomfortable.s6: adjustable: that can be made more helpful or useful.s7: microwave: very short wave.s8: braces: something used to tighten.ask the students to circle the words in the table.t: very good. now please find these words and circle them in the table. volunteers?show a hanging chart with the same table to the students. ask them to come to the front and circle the words in the table in the hanging chart.check the answers and correct the mistakes if there are any.step iv  words about food taste(1a, 1b: p71)ask one student to come to the front to do a blind taste test.show a bag to the students.t: look, there are 4 kinds of food in it. i will let one of you come to the front and taste them. but i will use a piece of cloth to cover his or her eyes. after tasting, he or she has to tell how each food tastes and what food it is. are you clear? sophie, please.cover sophie’s eyes and give her the food one by one. sophie tastes each food and tries to guess what it is.