Who is the audience?
How do we get people to understand programming? Khan Academy recently launched an online environment for learning to program. Because my work was cited as an inspiration for the Khan system, I felt I should respond with two thoughts about learning: Programming is a way of thinking, not a rote skill.
Learning about "for" loops is not learning to program, any more than learning about pencils is learning to draw. People understand what they can see.
Alan Perlis wrote, "To understand a program, you must become both the machine and the program. A person is not a machine, and should not be forced to think like one. A programming system has two parts.
This essay presents a set of design principles for an environment and language suitable for learning. The environment should allow the learner to: The features are not the point We often think of a programming environment or language in terms of its features -- this one "has code folding", that one "has type inference".
This is like thinking about a book in terms of its words -- this book has a "fortuitous", that one has a "munificent". What matters is not individual words, but how the words together convey a message.
Likewise, a well-designed system is not simply a bag of features. A good system is designed to encourage particular ways of thinking, with all features carefully and cohesively designed around that purpose.
This essay will present many features! The trick is to see through them -- to see the underlying design principles that they represent, and understand how these principles enable the programmer to think.
What do those numbers after "fill" mean? What do those numbers after "ellipse" mean? What units are these numbers in? What ranges are they in? Why are there so many numbers?
Imagine if you bought a new microwave, took it out of the box, and found a panel of unlabeled buttons. Imagine if the microwave encouraged you to randomly hit buttons until you figured out what they did. Now, imagine if your cookbook advised you that randomly hitting unlabeled buttons was how you learn cooking.Whoa!
That’s a really good essay, kind of scattered and intense but very interesting and thought-provoking. I agree that heterosexual love is inherently imbalanced, but why?
Also, “it starts to look like me and the feminists” should be “looks like I”.
And “untitled” doesn’t really make sense. And if biology is a hard science, it’s on the extreme soft edge of hard sciences. The Praxis Study Companion 2 Welcome to the Praxis Study Companion Welcome to The Praxis®Study Companion Prepare to Show What You Know You have been working to acquire the knowledge and skills you need for your teaching career.
The Dursley family are Harry Potter's last living relatives.
To ensure Harry's safety, Albus Dumbledore placed him in the Dursleys' care when he was a baby. The Dursleys live at Number 4, Privet Drive, Little Whinging in Surrey, England.
They are all Muggles, and despise all things related to magic – and anything out of the ordinary in general – and the Wizarding World, especially the Potters. Whoa! That’s a really good essay, kind of scattered and intense but very interesting and thought-provoking. I agree that heterosexual love is inherently imbalanced, but why?
Hold a rummage sale with donated items. This is a great way to raise a lot of money. Get people to donate extra items (the kind of stuff that lies around collecting dust in the garage) and hold a giant sale.