Dimensions教學(xué)筆記(G2.U1.1c)

（本文為備課材料，課程約半小時(shí)，涵蓋書本Page 11-13）

## 課前準(zhǔn)備 
- [ ] 孩子的Evidence Notebook (EN) 
- [ ] 準(zhǔn)備畫畫用的紙、鉛筆和橡皮 
- [ ] 一塊白板用于板書，配套白板筆和白板擦 
- [ ] 準(zhǔn)備好網(wǎng)絡(luò)視頻課件 
 

- [ ] 用于模型的手工材料：紙板、膠水、橡皮等

## 課堂引導(dǎo) 
### Review 
- Review what engineers do (5 steps of the design process) (2min) 
 

- Review our problem in the house and our plan. (2min)

### Step 3 - Test and improve 
 

- Test and improve our model, record in EN. (10min)

### Step 4 - Redesign 
- Play the online video for page 12. (2 min) 
- Discussion: (5min) 
 - Do we need to redesign for our house problem? 
 

- Do you know any examples of engineers who failed a lot and finally solved the problem? (Edison invented the light bulb)

### Step 5 - Communicate 
- Play the online video for page 13 (2min) 
- Discussion: (5 min) 
 - Why do we need to communicate for our solutions? (share ideas, people build things together, ask for help) 
 - How can people communicate the results of a design process? (draw pictures, take photos, make videos, talk about the design, make a prototype) 
 

- Write a summary of how you solve a problem in our house by following a design process. Use evidences to support your summary. (as homework)

補(bǔ)充：關(guān)于有哪些家庭問題需要解決

1. 書柜門把手掉了，給書柜重新做一個(gè)把手。 
2. 書架上的花只有一面能曬到太陽，長歪了。 
3. 經(jīng)常弄丟橡皮擦，怎樣讓橡皮擦不丟。 
 

4. 看過的書亂放，設(shè)計(jì)一個(gè)書籃可以隨手放書。

（在教室討論中，由于學(xué)生多，可能比較容易想到需要解決的問題。但是只有一個(gè)學(xué)生的情況下，讓父母來設(shè)計(jì)問題可能是必須的）