LogoALanguageforLearning.pptVIP

Logo -- A Language for Learning Liping Cai 11/21/2005 Agenda What is Logo? History Syntax and Example Demo Reference What is Logo? Designed to manipulate language – Words and Sentences. Designed to introduce children to programming concepts Intended to be easy to learn, easy to use, easy to read, but also powerful and able to cope with complex problems. Features: modularity, extensibility, interactivity, and flexibility Areas of Application: Graphics (Turtle Graphics), Use with Language, Making Music History The first version of Logo is created in 1967 by Seymour Papert and his team. Throughout the 1970s Logo was incubating at MIT and a few other research sites. Widespread use of Logo began with the advent of personal computers during the late 1970s. the Logo boom is in the early 1980s but Logo did not become popular among applications programmers. Over the past few years there has been a flurry of new Logo development accompanied by renewed public awareness and enthusiasm. MicroWorlds. Released in 1993 by LCSI. MicroWorlds includes many extra-Logo features - drawing tools, a shape editor, a melody maker, the ability to import graphics and sounds - that work along with Logo to support the creation of multimedia projects, games, and simulations. Logo has also been incorporated into HyperStudio, the widely popular multimedia program for Macintosh and Windows from Roger Wagner Productions. Get to Know Logo Turtle: Cursor for Logo -- set position of the logo: Turtle Screen Positions using Setxy horizontal vertical Technical Terms: -- instruction: is what you type to Logo to tell it to do something. Print 17 is an example of an instruction. -- procedure: is a small piece of code that performs a single task ; Procedures are invoked by instructions. Print is a procedure. -- command: is a procedure that does not output a value but instead has some effect such as printing something on the screen, moving a turtle, or making a sound. Pr