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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 == |
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| − | ==Examples==
| + | Read at https://help.sugarlabs.org/turtleart_tutorials/programming_without_words.html |
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| − | Can you read these examples?
| + | The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/turtleart_tutorials/programming_without_words.rst GitHub] |
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| − | [[File:Tangent.png|Tangent to a curve]]
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| − | [[File:TangentAtMaximum.png|Local maximum with level tangent]]
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| − | Here is a more complicated one.
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| − | [[File:Numeric integration program.png|Numerical integration]]
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| − | 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?
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| − | ==Glossary==
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| − | 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.
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| − | ===Turtle===
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| − | * '''Forward''' →
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| − | * '''Back''' ←
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| − | * '''Right''' ↷
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| − | * '''Left''' ↶
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| − | * '''Arc''' ↻
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| − | ** '''Angle''' ∡
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| − | ** '''Radius''' circle with arrow from center to edge
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| − | ===Pen===
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| − | * '''Pen Up''' ✑
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| − | * '''Pen Down''' ✒
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| − | ===Numbers===
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| − | Some of these functions are named with math symbols +-×÷><=, which are not changed.
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| − | * '''mod''' |
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| − | * '''random''' ?
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| − | * '''not''' ∼
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| − | * '''and''' ∧
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| − | * '''or''' ∨
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| − | * '''number''' Not decided. We are looking at various visual numerals in Unicode, such as
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| − | [[File:UnicodeNumerals.png]]
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| − | 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.
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| − | [[File:MayanNumerals.svg]]
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| − | ===Flow===
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| − | * '''wait''' ⌛
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| − | * '''if-then''' Split arrow to Yes and Continue
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| − | * '''if-then-else''' Split arrow to Yes and No, then rejoin to continue
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| − | * '''forever''' ⥁ (In some cases, this will stop at a stop stack block
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| − | * '''repeat''' ⥁ (This block requires a number of repeats to execute.)
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| − | * '''while''' Circle with arrow leaving at top right
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| − | * '''until''' Circle with arrow leaving at bottom left
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| − | * '''stop stack''' Stop sign
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| − | ===Boxes===
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| − | * '''start''' ↓
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| − | * '''store in box''' Set variable; identified by colored dot
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| − | * '''box''' Get value of variable; identified by colored dot
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| − | * '''action''' Identified by colored lozenge for both definition and use
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| − | * '''text''' ""
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| − | ===Sensors===
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| − | * '''read keyboard''' ⌨
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| − | * '''keyboard''' (value previously read) ⌨
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| − | ===Extras===
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| − | * '''print''' Picture of printer
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| − | One of the Python programmable blocks has a drawing of a python on it. We keep that.
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