我正在寻找最酷的事情,你可以在几行简单的代码。我相信你可以用Haskell用15行写一个Mandelbrot集,但是很难理解。

我的目标是启发学生编程很酷。

我们知道编程很酷,因为你可以创造任何你想象到的东西——它是最终的创意出口。我想激励这些初学者,让他们尽可能多地克服早期学习的困难。

Now, my reasons are selfish. I'm teaching an Intro to Computing course to a group of 60 half-engineering, half business majors; all freshmen. They are the students who came from underprivileged High schools. From my past experience, the group is generally split as follows: a few rock-stars, some who try very hard and kind of get it, the few who try very hard and barely get it, and the few who don't care. I want to reach as many of these groups as effectively as I can. Here's an example of how I'd use a computer program to teach:

Here's an example of what I'm looking for: a 1-line VBS script to get your computer to talk to you: CreateObject("sapi.spvoice").Speak InputBox("Enter your text","Talk it") I could use this to demonstrate order of operations. I'd show the code, let them play with it, then explain that There's a lot going on in that line, but the computer can make sense of it, because it knows the rules. Then I'd show them something like this: 4(5*5) / 10 + 9(.25 + .75) And you can see that first I need to do is (5*5). Then I can multiply for 4. And now I've created the Object. Dividing by 10 is the same as calling Speak - I can't Speak before I have an object, and I can't divide before I have 100. Then on the other side I first create an InputBox with some instructions for how to display it. When I hit enter on the input box it evaluates or "returns" whatever I entered. (Hint: 'oooooo' makes a funny sound) So when I say Speak, the right side is what to Speak. And I get that from the InputBox. So when you do several things on a line, like: x = 14 + y; You need to be aware of the order of things. First we add 14 and y. Then we put the result (what it evaluates to, or returns) into x.

这就是我的目标,有一堆很酷的例子来演示,并在他们玩得开心的时候教他们。我在我室友身上尝试了这个例子,虽然我可能不会把它作为第一课,但她喜欢它,并学到了一些东西。

一些很酷的数学程序,可以做出漂亮的图形或容易理解的形状,这是很好的想法,我将研究这些。这里有一些复杂的actionscript示例,但这有点太高级了,我不能教flash。你还有什么其他的想法吗?


当前回答

Logo总是一个很好的起点。

Brian Harvey的UCBLogo页面上有这样一个简短的例子:

Here is a short but complete program in Berkeley Logo: to choices :menu [:sofar []] if emptyp :menu [print :sofar stop] foreach first :menu [(choices butfirst :menu sentence :sofar ?)] end And here's how you use it. You type choices [[small medium large] [vanilla [ultra chocolate] lychee [rum raisin] ginger] [cone cup]] and Logo replies small vanilla cone small vanilla cup small ultra chocolate cone small ultra chocolate cup small lychee cone small lychee cup small rum raisin cone small rum raisin cup small ginger cone small ginger cup medium vanilla cone medium vanilla cup medium ultra chocolate cone medium ultra chocolate cup medium lychee cone medium lychee cup medium rum raisin cone medium rum raisin cup medium ginger cone medium ginger cup large vanilla cone large vanilla cup large ultra chocolate cone large ultra chocolate cup large lychee cone large lychee cup large rum raisin cone large rum raisin cup large ginger cone large ginger cup The program doesn't have anything about the size of the menu built in. You can use any number of categories, and any number of possibilities in each category. Let's see you do that in four lines of Java!

其他回答

大多数答案都使用某种API,这在某种程度上打破了10行代码的要求。每个API调用可能包含数百行代码。最初的问题说要使用“简单代码”。这对我来说意味着没有API调用。仅仅使用“简单代码”的定义,我们能得出什么样的答案呢?

我认为现在做计算机教育者很难。我是。我们面临着一场日益严峻的艰苦战斗。我们的学生是非常成熟的用户,要给他们留下深刻印象需要付出很多努力。他们有这么多工具,可以做惊人的事情。

用10行代码写一个简单的计算器?为什么?我有一张TI-86。

一个脚本,应用特殊效果的图像?这就是Photoshop的作用。Photoshop可以让你在10行里做的任何事情都相形见绌。

把一张CD光盘转换成MP3怎么样?我已经从bt下载了5万首歌了。它们已经是MP3格式了。我在iPhone上玩。谁会买cd呢?

为了向精明的用户介绍编程,你必须找到以下内容:

A)适用于他们觉得有趣和酷的东西,还有 B)做一些他们已经不能做的事情。

假设你的学生已经可以使用最昂贵的软件。他们中的许多人确实有完整版的Adobe CS5.5(零售价:2,600美元;实际价格:免费),可以轻松获得任何通常会打破你的部门预算的应用程序。

但他们中的绝大多数人都不知道这些“电脑东西”究竟是如何工作的。

他们是一群极具创造力的人:他们喜欢创造东西。他们只是想做一些朋友做不到的事情。他们想要一些可以炫耀的东西。

以下是我发现的一些与我的学生产生共鸣的事情:

HTML and CSS. From those they learn how MySpace themes work and can customize them. Mashups. They've all seen them, but don't know how to create them. Check out Yahoo! Pipes. There are lots of teachable moments, such as RSS, XML, text filtering, mapping, and visualization. The completed mashup widgets can be embedded in web pages. Artwork. Look at Context-Free Art. Recursion and randomization are key to making beautiful pictures. Storytelling. With an easy-to-use 3D programming environment like Alice, it's easy to create high-quality, engaging stories using nothing more than drag-and-drop.

这些都不涉及传统意义上的编程。但他们确实利用了强大的库。我认为它们是一种不同的编程。

嗯,我记得用QBasic制作雪花和火焰时,一个朋友过来教我如何做一个旋转的3D立方体,完全让我震惊。

然后我把火调到立方体上,那真是美好的时光。

我得看看能不能找到那些旧剧本,它们不是很长。

这是迄今为止我见过的最酷的东西……如果分解一下,其实很简单:

http://blogs.msdn.com/lukeh/archive/2007/04/03/a-ray-tracer-in-c-3-0.aspx

小书签怎么样?它将向他们展示如何操作他们每天使用的东西(互联网),而不需要任何开发工具。