*coding?*

*.*

I have taught learners to program in BASIC, Logo, Starlogo, the Texas Instruments version of BASIC, and now, I'm using

*Scratch,*a new language designed for beginners (and skilled coders too). To understand the attraction of*Scratch*as a coding language, watch this short video from the producers of Scratch.*Scratch*is a product of the Multimedia Lab at the Massachusetts Institute of Technology (MIT). Coding in

*Scratch*is a very popular activity with over five million

*Scratch*programs (called projects) uploaded to the

*Scratch*community web site. To the best of my knowledge,

*Scratch*is by far, the largest educational online community anywhere in the world. To learn more about

*Scratch*, and hopefully join the throng, click on this link.

You can visit my

*Scratch*programming blog by clicking on this link.
www.scratch-blog.com

For example, I have written three
My posts represent math and science projects that I programmed because I wanted to explore the topic that forms the core of the program and are too advanced for beginners but I have posted a number of projects designed for the beginner.

*Getting Started with Scratch*documents.
The first
document guides the reader through the steps of building a script (program) that draws a
square with a side length of 100 steps. This introduces the blocks menu and the
mechanics of connecting blocks together to build a script. Think of this level as the

*arithmetic*level.
The second
document describes how to create variables, sliders, and how to set the minimum
and maximum values in a slider. The size of the square is now under variable
control. Think of this level as the

*algebraic*level.
The third
document helps the reader build a script that will draw any regular polygon. In
a regular polygon the side lengths are equal. A slider controls the number of
sides and again, the side length is controlled by a slider.

The
relationship between the number of sides and the turn angle for a regular
polygon of

*n*sides requires a bit of mathematical analysis but how to get to the relationship is described in the document. Think of this level as the*generalized algebraic*level.
You may
request any or all of these documents—in PDF format— by sending an
email to:
grandadscience@gmail.com.

*Getting Started with Scratch – Part 1*

*Getting Started with Scratch – Part 2*

*Getting Started with Scratch – Part 3*

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