Lesson Plan

了解磁铁的日常使用

01_05_01-CN

Learning Outcomes

了解磁铁的工作原理和可以磁化的材料

Higher: 我可以测试不同材料以确定磁铁能否吸引它们。
Middle: 我能识别磁铁可以吸引的材料
Lower: 我可以查到磁铁的历史

Higher:
Middle:
Lower:

Higher:
Middle:
Lower:

Activities

入门任务 - 参与

Method:

观看磁铁相互吸引的短片。小朋友们是否可以辨别出家里或学校使用磁铁的地方？

Resources:

演示文稿 - 入门幻灯片。

故事 - 探索与解释

Method:

浏览有关磁铁、磁性以及磁铁使用场合的演示文稿。观看挑战影片。小朋友们可以认出什么物体，以及它们是用什么材料制作的？他们可以猜到哪些以某种方式使用磁铁的物体？在这些相关幻灯片上停止演示：讨论伙伴、AfL、歌曲。在“关键字/火箭词”幻灯片之后，参加“集体回答问题”活动（请参阅“评估”部分）。

Resources:

演示文稿 挑战影片

任务专家 - 解释

Method:

今天的影片由 Ben Burgess 农机公司的员工乔·霍华德讲述。他将解释如何在工作中使用磁铁。

Resources:

演示文稿 - 专家影片。

任务分配 - 详细说明

Method:

物体中的磁铁 任务分配视频给出一些使用磁铁的例子。小朋友们必须知道如何使用磁铁。视频内容包含 - 磁性棋盘游戏 - 眼镜盒 - 磁力画板 - 冰箱门 - 冰箱贴 然后，你可以解释，在含有电机、发出声音（喇叭）或录制声音的物体里有磁铁。鼓励他们在房间里找到符合这一描述的物体。然后让他们完成题纸。

Resources:

物体中的磁铁 含有磁铁的物体（可选）视频 题纸

任务日志 - 评估

Method:

当所有小组均已完成任务后，每个小组推选一名代表陈述他们的预测和发现，以及能够用磁铁吸起的物品的相同点。就结果展开小组讨论，问他们为什么认为自己的预测正确或不正确。测验 小朋友们与讨论伙伴一起将在演讲结束时进行测验并回答问题。

Resources:

演示文稿中的测验

Assessment

Questions to Ask During the Lesson

Are children able to recognise material which are made from wood, metal and plastic?
Are children able to identify materials which are magnetic or non-magnetic?
What words are children using to describe the materials and their properties?

Mark Allocation

Quizzes available in pupil zone.

Unit knowledge organisers and tests available in unit / lesson documents area.

Choral Response Questions/ Phrase Suggestions

磁铁可以吸起…（金属）磁铁很有用，因为…有些材料比其他材料更有（磁性），比如…你可以测试一种材料是否可以被…磁化

Teacher Mastery

The Science Behind the Science
Magnetism is created by the motion of electrical atoms. When all of the electrons in an element spin in the same direction, they have the potential to become magnetic. They can only become magnetic, however, when they enter the magnetic field of another magnet, so an existing magnet is needed to create a new magnet. 

Iron is magnetic, therefore any alloy, such as steel which contains iron, is also magnetic. Other metals which are magnetic are nickel, cobalt, and a few rare earth metals. 

Some animals can sense magnetism and use it to navigate around the world.

Fun fact: Farmers feed cows "cow magnets" to collect pieces of scrap metal that the cow may have swallowed by accident. 

Curriculum Fields

National Curriculum

To identify and name a variety of everyday materials, including wood, plastic, glass, metal, water, and rock.

Curriculum Of Excellence

Planet Earth - Energy sources and sustainability - I am aware of different types of energy around me and can show their importance to everyday life and my survival. SCN 1-04a Forces, electricity and waves - Forces - By exploring the forces exerted by magnets on other magnets and magnetic materials, I can contribute to the design of a game. SCN 1-08a

International Baccalaureate

Forces and Energy: the study of energy, its origin, storage and transfer and the work it can do; the study of forces; the application of scientific understanding through inventions and machines.

Enquiry Skills and Approaches

Grouping and classifying.

Working Scientifically Skills

Identifying and classifying.

CrossCurriculum Opportunities

Cross Curricular Link for Mathematics: Measurement: Ask pupils to describe the mass/weight [for example, heavy/light, heavier than, lighter than] of the different objects they are exploring.

CBSE

Grade 2 - Force, Work and Energy

Chinese Compulsory Education Primary School Science

列举生活中不同形状的常用磁铁，观察描述常见物体的基本特征，识别生活中常见的材料，了解常见的力。中文 - 科学探究 - 做出假设：在老师的指导下，能够根据现有经验和问题做出简单的猜想。