初级Beginner可打印Printable
吃豆人的鬼怎么追你？
How Do the Pac-Man Ghosts Chase You?
红鬼紧追，粉鬼埋伏，橙鬼一会儿追一会儿跑。每只鬼只有一两条规则，却像有性格。
Red chases, Pink ambushes, Orange comes and goes. Each ghost has only one or two rules, yet each seems to have a personality.
吃豆人里的鬼：红鬼总是紧追不放，粉鬼喜欢埋伏在你前面，橙鬼一会儿追、一会儿跑开……它们真的有“性格”吗？
In Pac-Man, Red always chases you, Pink likes to wait in front of you, and Orange chases and then runs away. Do they really have personalities?
孩子做什么What kids do
- 先看一小段吃豆人，说说每只鬼像什么性格。Watch a little Pac-Man and describe each ghost’s personality.
- 规则卡：红鬼去 Pac-Man 的格子；粉鬼去他前方 4 格；橙鬼离他超过 8 步就追，8 步以内就跑回角落。Rule cards: Red goes to Pac-Man’s square; Pink goes 4 squares in front of him; Orange chases when he is more than 8 steps away and runs to its corner when he is closer.
- 学习单：在 10 × 10 地图上标出每只鬼的目标格，算出红鬼下一步。Worksheet: mark each ghost’s target on a 10 × 10 map and work out Red’s next move.
- 真人版：在地上贴方格，孩子扮演 Pac-Man 和鬼。Life-size: tape a grid on the floor, and kids play Pac-Man and the ghosts.
- 设计你的鬼：只用一两条规则，让它看起来聪明、胆小或狡猾。Design your own ghost: one or two rules that make it look clever, shy or sneaky.
要点Key idea
这些鬼一点都不会学习，只有一两条规则；规则组合起来，玩家就觉得它们会配合。
The ghosts don’t learn at all; each follows one or two rules. Put together, the rules look like teamwork.
和 AI 的关系Where AI comes in
对比最后一枚硬币里的火柴盒 AI：一个是人写好规则，一个是自己从输赢里学。
Compare the matchbox AI in The Last Coin: one follows rules people wrote, the other learns from winning and losing.
学习单Worksheets
学习单是英文的，打印出来给孩子；老师指南是中文的。
Worksheets are in English for the kids; the teacher’s guide is in Chinese.
下载学习单（PDF）Download worksheets (PDF)老师指南（PDF，中文）Teacher’s guide (PDF, Chinese)
视频与文章Videos and reading
- Retro Game Mechanics Explained: Pac-Man Ghost AI Explained 20 分钟，课上可以只放前几分钟20 min, the first few minutes work in class
- GameInternals: Understanding Pac-Man Ghost Behavior (archived) 存档版archived copy