(
课件网) 沪教版 四年级 上 Unit 3 How do we use numbers Period 1 Get ready Core competences By the end of the lesson, I will be able to... talk about numbers in Maths; do addition and subtraction with numbers. 谈论数字在数学学科中的应用; 用数字做加减法。 1 Lead in 导入环节 3 Practice 知识操练 5 Summary 课堂总结 2 Presentation 新知讲解 4 Production 输出运用 6 Homework 作业设计 01 Lead in Watch and enjoy Where can we find numbers We can see numbers on a clock. We can see numbers on the price tags (价格标签). We can see numbers on the keyboard (键盘). We can see the numbers on the road signs. We can see numbers in maths class. Numbers are everywhere in our lives. 02 We can use numbers to count. Presentation Why do we need numbers How can we use them to count Can you say them in English Let's count one two three four five six seven eight nine ten Let's count eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty Let's learn Think and put the numbers into two groups. 2 4 6 8 10 12 14 16 18 20 1 3 5 7 9 11 13 15 17 19 odd numbers 奇数 even numbers 偶数 Let's learn Let's learn + = - = plus equal minus answer plus 加; 加号 minus 减; 减号 equal 等于 answer 答案; 回答 Let's learn 02 Presentation Listen, point and say plus equal minus answer odd numbers even numbers Listen and say 1. There are some numbers on the blackboard. One, three and five are odd numbers. Two, four and six are even numbers. Listen and say 3. This is a minus. What is fourteen minus one The answer is thirteen. 2. This is a plus. Twelve plus seven equals nineteen. Let's learn plus 加 符号“加号” minus 减 符号“减号” Let's learn e.g. I don’t know the answer. (名词) 我不知道答案。 Can you answer the question (动词) 你能回答这个问题吗 answer 名词 动词 答案 回答 Read and circle Circle the correct numbers. 1 Ten plus two equals twelve. 10-1=9 10+2=12 2 This is an even number. 4 9 3 This is an odd number. 5 6 4 Ten minus two equals eight. 6+2=8 10-2=8 Watch and learn plus minus equal answer odd numbers even number 加;加号 减;减号 等于 奇数 回答 偶数 Play a game Read and find 16 11 0 5 7 9 13 18 6 4 Can you find the odd numbers 03 Practice Read and find 16 11 0 5 7 9 13 18 6 4 Can you find the even numbers Listen and choose 9 13 Listen and choose 12 20 Listen and choose 9 7 Listen and choose 6 9 Listen and choose 19 18 Listen and choose 12 14 Listen and complete There are some _____on the _____. One, three and five are _____numbers. Two, four and six are _____numbers. numbers blackboard odd even This is a _____. Twelve plus seven _____ nineteen. plus equals This is a _____. What is fourteen minus one The _____ is thirteen. minus answer 04 Production Look and guess Look at headings (标题) and guess what the poem is about. Look and guess Look at all the clothes! Ten hats! Tanya loves hats. She has ten hats. There are three hats for rainy days and seven hats for sunny days. Seven T-shirts! Leon’s favourite cloth ... ...
