Dimensions教學(xué)筆記(2)：G2.U1.1a

（本文為備課材料，課程約半小時(shí)，涵蓋書(shū)本開(kāi)頭至Page 7）

## 課前準(zhǔn)備

- [ ] 給孩子準(zhǔn)備一本Evidence Notebook 
- [ ] 準(zhǔn)備畫(huà)畫(huà)用的鉛筆和橡皮 
- [ ] 一塊白板用于板書(shū)，配套白板筆和白板擦 
- [ ] 單詞卡片：engineer, design process, solution 
 

- [ ] 準(zhǔn)備好網(wǎng)絡(luò)視頻課件

## 課堂引導(dǎo)

### Warm-up

1. Why are we doing this? (1min) 
You can be a scientist or an engineer (or both). 
Now let’s find out how. 
2. Safety in Science (2 min) 
Read seven rules about doing a science lab. We will review them when we actually do a lab project. 
 

### Unit 1: Engineering Design Process

1. Introduction: (1 min) 
 - [ ] Play the video about the highway, answer the question 
- Vocabulary: (5 min) 
 - [ ] Guide the student to read the words and definitions: engineer, design process, solution 
 

- [ ] Play vocabulary game

2. Lesson 1: What Is a Design Process? 
 - [ ] Show the picture of the robot competition, explain (2 min) 
 - [ ] Play the video about the ramps (2 clips, 2 min) 
 

- [ ] Define a ramp (1 min)

- [ ] Discussion: (10 min) 
 

• What are the problems? (loading luggages/cases to the airplane, going to a higher stage)
• What if we don’t use a ramp for these two problems? (need people to carry the cases to the airplane by stairs; using lifts)
• What is common about these two applications in the videos? (both are transportation problems; moving from lower end to higher end; need power to move; slope is shallow; etc)
• What are the differences between these two applications? (one uses belt, one uses wheels; one for things, one for people; one is automatic, one is manual, etc)
• Have you seen any other ramp application? (Underground parking lots; playground slides; airplane escape slides; highway ramps)

3.What Engineers Do: (8 min) 
- [ ] Play the online video (2min) 
- [ ] Step 1: Define a Problem, play the online video (1 min) 
- [ ] Define a problem within our house. Record it in the Evidence Notebook. (5 min)