electric aerodynamic speedboat model competition electric car model technology small production tiger shark speedboat model

Name: Shark

Product Code: KX1373

Size: 26.5*10.5*6.5CM

Gross weight: 65G

Box Specification: 60*50*55CM

Packing Quantity: 300 pieces

Shark Speedboat Lesson Plan

（Knowledge point: Action force and reaction force）

1. Teaching Objectives

"三维目标"可以翻译为 "Three-dimensional objectives".

【Knowledge and Ability】Through the investigation of the Shark Speedboat experiment, understand the construction and principles of the Shark Speedboat.

【Process and Method】Cultivate children's ability to observe, think, create, cooperate, and practice skills.

【Emotion, Attitude, and Values】Through the process of hands-on practical operation, let the children experience the fun of popular science and fall in love with science.

Second, the teaching key points and difficulties

【Teaching Focus】

To let students understand the principles of the Shark Speedboat and thus inspire children's spirit of scientific exploration.

【教学难点】

Master the principle of reaction force.

Section Three: Teaching Methods:

Question-based method, demonstration method, experimental method, interactive teaching method.

Teaching Preparation:

Experimental equipment: Shark Speedboat Science Kit.PPTA related courseware package.

Teaching Process:

Classroom Discipline and Rules Emphasis

Teacher: Good morning, children.~Today is another exciting science experiment class. Guess what we're going to do today?

Create robots! Conduct chemical experiments!

Teacher: You all guessed what we will cover in science class later. Today, we are going to do an interesting innovative experiment.

Teacher: However, before class starts, the teacher would like to remind you of the safety precautions for the experiment.

Firstly, before the experiment class, you should carefully review the material, understand the purpose, principles, experimental steps, and precautions of the experiment.

You must also follow the teacher's arrangements and not take any actions on your own.

Secondly, we must wear clean clothes when entering the laboratory; it is not allowed to enter the laboratory with slippers or vests. Without the permission of the teacher, no food is allowed in the laboratory. Students cannot make noise or violate discipline in class; they cannot fall asleep during class. They should be willing to cooperate with classmates to maintain the cleanliness of the desk, and they should complete the experimental operations on time.

Thirdly, in the experiment, you must follow the teacher's guidance, operate carefully, observe carefully, record the experimental data and results honestly, actively analyze and think about the test results, and do not copy each other's experimental data. These are the requirements for you in this science class. Can you do it?

Yes, I can!

Teacher: It seems like you don't have much confidence! Tell me loudly, can you do it?

Life: Can (loudly)

The Shark Speedboat uses the principles of action and reaction to achieve its forward motion. Electricity is provided to the wires by batteries, which is then transmitted to the electric motor. The motor converts the electricity into mechanical energy, which makes the propeller spin. The rotation of the propeller creates an action force, and the air reacts with an opposite force, pushing the speedboat forward.