问HN：针对三年级学生的软件开发入门第二代课程
我去年发过一条帖子，请求帮助为三年级学生创建软件开发的介绍：
“下周我将进入我女儿的课堂，教授软件工程。我想让他们了解其中的魔力。”
https://news.ycombinator.com/item?id=42056775
最好的建议是：
“我经常想起PB&J的演示。”
这非常受欢迎！我采纳了很多建议，并且玩得很开心。我要为我的四年级和五年级班级再做一次，并希望能得到一些改进的建议。
去年的几个亮点：
* 我带了一把锯齿刀和一些番茄酱包。当他们说用刀把果酱涂在面包上时，我握住锯齿的一端，假装我的手指流血（番茄酱非常适合作为血液）。
* 我带来了凡士林，也就是石油胶。当他们说把果酱涂在面包上时，我大声思考：“好吧，你们说的是果酱，而这个上面写的是果酱！”
我还提议把三明治送给一个幸运的孩子，但令人惊讶的是，没有人愿意接受这个用花生酱、凡士林和番茄酱做的三明治。现在的孩子真是太娇惯了，6-7岁！
今年我想再做一次。但我想添加一些想法：
* 团队合作的重要性：我认为这区分了优秀的软件团队和糟糕的团队。
* 良好沟通的重要性：我在考虑教他们沟通和计划的重要性。去年我准备了一些纸条，请不同的记录员写下指令，然后我根据班级的意见重新排序，再采取行动。但也许我可以在这方面深入讲解，让他们真正理解计划和良好书面沟通的价值。
* 经理角色：我在考虑谈谈经理通常薪水最高的原因，因为他们负责所有的动态部分，以及项目的成功或失败。我预计这可能会在HN上引发争议！
有什么建议吗？
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I posted this last year asking for help in creating an introduction to software development for 3rd graders:<p><pre><code> "Next week I'm going into my daughter's classroom to teach about software engineering. I want to teach them about the magic of it."
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https://news.ycombinator.com/item?id=42056775<p>The best suggestion was<p><pre><code> "I think about the PB&J demo a lot."
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It was a big hit! I took a lot of the suggestions and had so much fun. I'm going to do it again for my 4th and 5th graders classes and could use some help in improving it.<p>A few highlights from last year:<p><pre><code> * I brought a serrated knife and ketchup packets. When they said put the jelly on the bread with the knife, I gripped the serrated end and pretended my fingers bled (ketchup works great as blood).
* I brought in vaseline AKA petroleum jelly. When they said put jelly on the bread, I contemplated aloud "Well, you said JELLY, and this says JELLY!"
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I offered to give the sandwich to one lucky kid afterward, but surprisingly, no one took me up on the opportunity to eat a sandwich with peanut butter, vaseline and ketchup. Kids these days are so spoiled, 6-7!<p>This year I want to do it again. But, I want to add some ideas:<p><pre><code> * importance of teamwork: I think this differentiates good software teams from bad teams.
* importance of good communication: I was thinking about teaching them about how important communication and planning is. Last year I had slips of paper where I asked a different scribe to write down the instructions, and then I took those, reordered them with class input and then took action. But, perhaps I can expand on that and really drill into them the value of planning and good written communication.
* managers: I was thinking about talking about how the managers are often the best paid, because they take responsibility for all the moving pieces, and the success or failure of the project. I expect this might be a controversial take here on HN!
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Any suggestions?