light up science (科学)3b 课件unit 2 habitats lesson 3 migration and hibernation-PPT资料12页
light up science 3b 课件unit 1 measurement lesson 1 measuring mass
How can you measure mass? Sing the song.
Measure your mass, how much do you weigh? You can use the scales today.
Stand quite still and you will understand That your mass is measured in kilograms. A pear weighs much less than a kilogram.
(克) (质量) (测量) (秤)
Is a banana heavier than
an apple?
Let’s find out!
Your mass is what makes you heavy.
I am heavier than a mouse. I have
more mass.
A mass has a number and a unit, such as 20 grams (g). We use scales to measure mass.
Put one on the scales today. The mass will be about 100 grams —
Much less than a kilogram.
Mass is what makes you heavy. I can use scales to measure mass. If an object changes its shape, it has the same mass.
Add the masses. Make five plasticene balls.
Measure the mass of each ball. Add them up.
lightupscience课件...
UNIT 3 LIGHT and SHADOWS 第三单元光和影第1 课光（Lesson 1 Light）一、教学目标：（LESSON OBJECTIVES ）By the end of this lesson, students will be able to:Identify objects which give out their own light.Identify objects which do not give out their own light.State that light travels in straight lines.通过本课的学习，学生将能够：辨别哪些物体自身会发光。
辨别哪些物体自身并不会发光。
知道光是沿直线传播的。
二、教学内容：Key words:give out light straight lineKey sentences:Some objects give out light. Light goes in straight line.Which objects give out light?Fire gives out light.三、教学过程：（一）新课导入：Welcome back to Light up science. Science is about animals, about plants, also about light.（通过一组光的图片，引出思考：如果这个世界没了光照，会发生什么？）（二）新知预知：Light is important for us, because it can make the world bright. Do you want to experience darkness, a world without light? (引导同学思考光照能给人类带来光明，关掉教室的灯，拉上教室的窗帘，师生共同体验黑暗：Can you read? Can you see my face?）（三）新知识的呈现与归纳：（顺应上面的话题）What can make the classroom bright now? (引导学生思考什么可以让教室重新亮起来，如电灯、多媒体屏幕、蜡烛、手电筒等，因为它们会发光。
light up science 3b 课件unit 1 measurement lesson 1 measuring mass
Make one piece of plasticene into different shapes. Measure the mass of each shape.
Mass (g)
Are the masses the same? ___Y_e_s___.
√ I made some measurements. √ I used scales.
I weighed an elephant.
What are the masses? Draw lines.
How can you balance the scales? Circle the masses.
(克) (质量) (测量) (秤)
Is a banana heavier than
an apple?
Let’ find out!
Your mass is what makes you heavy.
I am heavier than a mouse. I have
more mass.
A mass has a number and a unit, such as 20 grams (g). We use scales to measure mass.
Put one on the scales today. The mass will be about 100 grams —
Much less than a kilogram.
Mass is what makes you heavy. I can use scales to measure mass. If an object changes its shape, it has the same mass.
light up science 3b 课件unit 1 measurement lesson 1 measuring mass
How can you measure mass? Sing the song.
Measure your mass, how much do you weigh? You can use the scales today.
Stand quite still and you will understand That your mass is measured in kilograms. A pear weighs much less than a kilogram.
Put one on the scales today. The mass will be about 100 grams —
Much less than a kilogram.
Mass is what makes you heavy. I can use scales to measure mass. If an object changes its shape, it has the same mass.
Scales also balance with 20 g + 5 g weights on left, 100 g + 50 g weights on right.
There are 1000 grams in 1 kilogram (kg).
Read the scales below. Write the mass. The mass of the potatoes is ___8_0_0__g_____. The mass of the mouse is _____5_0__g____.
Add the masses. Make five plasticene balls.
light up science 3b 课件unit 1 measurement lesson 1 measuring mass
Much less than a kilogram.
Mass is what makes you heavy. I can use scales to measure mass. If an object changes its shape, it has the same mass.
√ I made some measurements. √ I used scales.
I weighed an elephant.
What are the masses? Draw lines.
How can you balance the scales? Circle the masses.
Scales also balance with 20 g + 5 g weights on left, 100 g + 50 g weights on right.
Is the sum equal to the total mass? __Y_e_s___.
Make one piece of plasticene into different shapes. Measure the mass of each shape.
ห้องสมุดไป่ตู้Mass (g)
Are the masses the same? ___Y_e_s___.
How can you measure mass? Sing the song.
Measure your mass, how much do you weigh? You can use the scales today.
light up science 3b 课件unit 1 measurement lesson 1 measuring mass
Much less than a kilogram.
Mass is what makes you heavy. I can use scales to measure mass. If an object changes its shape, it has the same mass.
(克) (质量) (测量) (秤)
Is a banana heavier than
an apple?
Let’s find out!
Your mass is what makes you heavy.
I am heavier than a mouse. I have
more mass.
A mass has a number and a unit, such as 20 grams (g). We use scales to measure mass.
Scales also balance with 20 g + 5 g weights on left, 100 g + 50 g weights on right.
How can you measure mass? Sing the song.
Measure your mass, how much do you weigh? You can use the scales today.
Stand quite still and you will understand That your mass is measured in kilograms. A pear weighs much less than a kilogram.
lightupscience（科学）lesson1dayandnightsky教案
课题1A Unit 3 Day and NightLesson 1 Day and Night Sky课型双语科学课课时 1教学内容1. 白天和夜晚的天空。
2. 昼夜现象、月相和夜行性动物。
3.词汇：day、night、sky、moon、shape、star、sleep4.句型：I can see the sun. / I can see the moon. /Owls sleep in the day. / Dogs sleep at night.教学目标科学目标通过本单元的学习，学生将能够：1）了解月相的形成原因。
2）了解星座是远近不同、没有联系的恒星在天空中的视觉图像。
3）了解动物在白天和夜晚的行为活动。
语言目标在本单元中，学生将能够：运用英语描述天空中的物体和状态、自己一天内的活动，介绍喜爱的动物。
科学技能目标观察、比较、分类、表达态度与价值观目标培养兴趣、乐于观察，拓展表达能力，发展合作意识教学重点引导学生观察白天和夜晚的天空、月相。
在双语语言环境中，认识和表述关注到的白天和夜晚天空的不同、地球与月球的关系。
教学难点在双语环境中，理解、掌握并能运用词汇描述月相，理解月相的科学成因。
教学准备课件、月相演示器、投影仪；教材、绘图纸、笔。
教学过程设计环节内容教师活动学生活动设计意图时间安排Step 1 Cover page Warm up ◆T: In this unit, we’ll talkabout day and night. （教师板书课题）◆T:(展示篇章页小诗)Let’s chant it together.◇Ss chant.引入本单元学习的主题----水和空气，通过篇章页小诗调动学生学习热情、理解本课学习方向。
5’Look at the moon.Who is asleep? Who will wake soon? Day comes after night. The sun gives out light.It is bright!Step 2 Stimulus activity Lead-in ◆T: In this lesson we willlearn day and night sky.(PPT 分页呈现月亮和太阳的图片)◆T: What’s this?Where is the moon/ sun?What color is the sky?Why is the sky black/bright?(It is the night/day.)◇Ss listen.◇Ss discuss with deskmates.◇Ss: it is…通过引导学生运用观察明确观察范围，从语言和思维上围观察白日和夜晚天空作过渡。
light up science 3b 课件unit 1 measurement lesson 1 measuring mass
√ I made some measurements. √ I used scales.
I weighed an elephant.
What are the masses? Draw lines.
How can you balance the scales? Circle the masses.
Put one on the scales today. The mass will be about 100 grams —
Much less than a kilogram.
Mass is what makes you heavy. I can use scales to measure mass. If an object changes its shape, it has the same mass.
UNIT 1
测量
How long is a pencil? How much water is there? How heavy is an apple? Measurement is everywhere!
Lesson 1 Measuring Mass
gram mass measure scales
Add the masses. Make five plasticene balls.
Measure the mass of each ball. Add them up.
Ball Ma
Put all the plasticene balls on the scales. The total mass is ______.
(克) (质量) (测量) (秤)
Is a banana heavier than
light up science (科学)6b 课件unit 2 living together lesson 3 living together-PPT资料17页
Decomposers break down dead or decaying things for energy.
Producers, consumers and decomposers depend on each other.
Where does the apple tree get its energy?
Look at this food chain. Where do leaves get their energy?
producer
consumer
consumer
Plants use the sun’s energy to make their own food. They are called “producers”. Animals get their energy by eating plants and other animals. They are called “consumers”.
1
4
2 56
பைடு நூலகம்
3
7
producers
1, 4
consumers 2, 5, 6, 8
8
decomposers 3, 7
Where do consumers, producers and decomposers get their energy? Draw lines.
caterpillar earthworm
fungi microbes
What do decomposers do? Draw a picture.
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栖息地
Lesson 3 Migration and Hibernation
hibernation (冬眠) migration (迁徙)
Look at the birds.
Where are they going?
Wild geese fly from north to south in winter. They fly from south to north in spring. Do you know why?
Some animals migrate. Some animalsof animals migrating. I saw pictures of animals hibernating. I did an experiment.
Which animals migrate? Which animals hibernate? Draw lines.
What do animals do to keep warm in the winter? Sing the song.
Cows and sheep are happy, living on the farm. In the winter they sleep in a stable to keep warm. Birds fly in the sky, they make nests on the farm. But in the winter they fly south where it is very warm. Martha Mouse lives here. She lives here on the farm. In the winter she sleeps in the hay to keep herself warm.
Some animals move from one place to another at a regular time. This is called “migration”.
Winter is coming. Harry Hedgehog and Martha Mouse feel cold. What can they do?
bat
swallow
swan
hedgehog
Thank you
I want to sleep.
I want to stay in my house.
Some animals sleep in winter. This is called “hibernation”. Which other animal hibernates? Draw a picture.