Difference between revisions of "Activities/Turtle Art/Tutorials/Turtle Art programming without words"

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Turtle Art blocks are named in the current language. Mokurai has created an alternative language-independent "localization" for TA, using symbols rather than words to name the blocks. He hopes that this will make TA accessible to pre-schoolers, after some period working on [[Activities/TurtleArt/Tutorials/You_be_the_Turtle|You be the turtle]]. It has not been made part of TA yet, but we are working on it.
== Turtle Art/Tutorials/Turtle Art programming without words ==
Can you read these examples?
Read at https://help.sugarlabs.org/turtleart_tutorials/programming_without_words.html
[[File:Tangent.png|Tangent to a curve]]
The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/turtleart_tutorials/programming_without_words.rst GitHub]
[[File:TangentAtMaximum.png|Local maximum with level tangent]]
Here is a more complicated one.
[[File:Numeric integration program.png|Numerical integration]]
This example draws X and Y axes and graphs a function. Then it draws lines from the X axis to the curve, and adds the area of the lines. This approximates a Riemann integral. But never mind that. Can you read the blocks?
This is a partial listing showing blocks for which Mokurai has chosen a symbol, either a Unicode character or a graphic. It includes everything visible in the examples above. In some cases the same symbol appears on two blocks of different shape, where one is the definition of a function or setting of a variable, and the other calls the function or accesses the value.
* '''Forward''' →
* '''Back''' ←
* '''Right''' ↷
* '''Left''' ↶
* '''Arc''' ↻
** '''Angle''' ∡
** '''Radius''' circle with arrow from center to edge
* '''Pen Up''' ✑
* '''Pen Down''' ✒
Some of these functions are named with math symbols +-×÷><=, which are not changed.
* '''mod''' |
* '''random''' ?
* '''not''' ∼
* '''and''' ∧
* '''or''' ∨
* '''number''' Not decided. We are looking at various visual numerals in Unicode, such as
Mayan is also a candidate in part because it is the only one of these number systems with a zero, but Mayan has not yet been added to Unicode.
* '''wait''' ⌛
* '''if-then''' Split arrow to Yes and Continue
* '''if-then-else''' Split arrow to Yes and No, then rejoin to continue
* '''forever''' ⥁ (In some cases, this will stop at a stop stack block
* '''repeat''' ⥁ (This block requires a number of repeats to execute.)
* '''while''' Circle with arrow leaving at top right
* '''until''' Circle with arrow leaving at bottom left
* '''stop stack''' Stop sign
* '''start''' ↓
* '''store in box''' Set variable; identified by colored dot
* '''box''' Get value of variable; identified by colored dot
* '''action''' Identified by colored lozenge for both definition and use
* '''text''' ""
* '''read keyboard''' ⌨
* '''keyboard''' (value previously read) ⌨
One of the Python programmable blocks has a drawing of a python on it. We keep that.

Latest revision as of 09:13, 28 July 2018

Turtle Art/Tutorials/Turtle Art programming without words

Read at https://help.sugarlabs.org/turtleart_tutorials/programming_without_words.html

The source file has been moved to GitHub