Difference between revisions of "KTurtle/C2/Introduction-to-KTurtle/English-timed"

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{| Border=1
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{|border =1
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| '''Time'''
+
!Visual Cue
 +
!Narration
 +
|-
 +
|00.01
 +
||Hello everybody. Welcome to this tutorial on '''Introduction to KTurtle.'''  
  
−
|'''Narration'''
+
|-
 +
|00.07
 +
||In this tutorial I will introduce you to the basics of getting started with '''KTurtle.'''  
 +
|-
 +
||00.14
 +
||In this tutorial,  we will learn about
  
 +
|-
 +
|00.17
 +
||KTurtle Window
  
−
|-
+
|-
 +
|00.19
 +
||Editor
  
−
|00.01
+
|-
 +
|00.20
 +
|| Canvas
  
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| Hello Everybody
+
|-
 +
|00.21
 +
|| Menu Bar
  
 +
|-
 +
|00.22
 +
|| Toolbar
  
−
|-
+
|-
 +
|00.24
 +
||We will also learn about,
  
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|00.02
+
|-
 +
|00.26
 +
|| Moving the '''Turtle'''
  
−
| Welcome to the tutorial Introduction to KTurtle.
+
-
 +
|00.28
 +
||Drawing '''lines and changing directions'''
  
 +
|-
 +
|00.32
 +
||Draw a '''triangle'''
 +
|-
 +
||00.34
 +
||To record this tutorial I am using  Ubuntu Linux OS version. 12.04.  KTurtle version. 0.8.1 beta.
 +
|-
 +
||00.47
 +
||What is KTurtle?
  
 +
|-
 +
|00.49
 +
||'''KTurtle''' is a '''free tool''' to learn basic programming.
  
−
|-
+
|-
 +
|00.53
 +
||It is useful for '''computer aided interactive learning'''
  
−
|00.05
+
|-
 +
|00.59
 +
||'''KTurtle''' is  available for download at '''http://edu.kde.org/kturtle/'''
 +
|-
 +
||01.12
 +
||KTurtle makes programming '''easy''' and '''accessible .'''
  
−
| In this tutorial I will introduce you to the basics of getting started with KTurtle.
+
|-
 +
|01.18
 +
|| Helps teach kids '''basics of mathematics.'''
  
 +
|-
 +
|01.22
 +
||Translates commands to '''speaking language''' of the programmer
  
−
|-
+
|-
 +
|01.27
 +
||Translates commands into '''visuals.'''
 +
|-
 +
||01.31
 +
|| We can install  '''KTurtle''' using '''Synaptic Package Manager .'''
  
−
|00.10
+
|-
 +
|01.36
 +
|| for more information on '''Synaptic Package Manager
 +
'''
 +
|-
 +
|01.40
 +
|| please refer to '''Ubuntu Linux''' tutorials on our website'''http://spoken-tutorial.org'''
 +
|-
 +
||01.46
 +
||Let's open a new '''KTurtle''' Application.  
  
−
| | What is KTurtle ?
+
|-
 +
|01.50
 +
||Click on '''Dash home'''. 
  
 +
|-
 +
|01.52
 +
||In the Search bar, type '''KTurtle.'''
  
 +
|-
 +
|01.55
 +
||And Click on the '''KTurtle''' icon.
 +
|-
 +
||01.59
 +
||A typical KTurtle window looks like this.
  
−
|-
+
|-
 +
|02.02
 +
||This is the '''Menubar'''.
  
−
|00.11
+
|-
 +
|02.04
 +
||In the menu bar on the top,
  
−
| It is a free programming software to learn logic
+
|-
 +
|02.06
 +
||You will find menu items 
  
 +
|-
 +
|02.08
 +
||'''File, Edit, Canvas, Run, Tools, Settings''' and '''help''' options
 +
|-
 +
||02.17
 +
||In the tool bar, you can reach for most of the actions used.
 +
|-
 +
||02.23
 +
||'''Editor''' is on the left, where you can type the '''TurtleScript''' commands.
  
 +
|-
 +
|02.30
 +
||Most of the functions of the editor can be found in the  '''File''' and '''Edit''' menus.
 +
|-
 +
||02.37
 +
||There are several ways to enter the code in the editor.
  
−
|-
+
|-
 +
|02.42
 +
||Easiest way is to use an example.
  
−
|00.13
+
|-
 +
|02.46
 +
||Go to  '''File''' menu > select  '''Examples'''
  
−
| and is available at [http://edu.kde.org/kturtle/ http://edu.kde.org/kturtle/] for download.
+
|-
 +
|02.50
 +
||Here I will select a '''flower'''
  
 +
|-
 +
|02.53
 +
||Code of the selected example opens in the editor.
  
−
|-
+
|-
−
 
+
|02.58
−
|00.19
+
||Click on the '''Run''' button from '''Menu bar''' or ''' Tool bar''' to run the code.  
−
 
+
−
| It is useful for computer aided learning
+
−
 
+
−
|-
+
−
 
+
−
|00.21
+
−
 
+
−
| as it is interactive, makes programming easy and accessible.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|00.24
+
−
 
+
−
| And helps teach kids the basics of logic and programming.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|00.28
+
−
 
+
−
| It translates commands into visuals,i.e when you execute the command the turtle moves.
+
−
 
+
−
 
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
| 00.34
+
−
 
+
−
| To get started with KTurtle,
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|00.36
+
−
 
+
−
| Iam using  the Linux operating system ubuntu, Version 11.04 and KTurtle Version 0.8.1 Beta
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
| 00.44
+
−
 
+
−
|| If you have already installed KTurtle, go to the Ubuntu Menu Item
+
−
'''Applications >''' '''Education'''and click on the '''KTurtle'''
+
−
  Application.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|00.52
+
−
 
+
−
| And the way to open '''Kturtle'''on your system is by going to the terminal and then application and accessories menu .
+
−
 
+
−
|-
+
−
 
+
−
|01.01
+
−
 
+
−
|And if they prompt typing  the name of your application that is
+
−
'''Kturtle''' and hit enter. This will open the tone on your system.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|01.13
+
−
 
+
−
| If you have not installed KTurtle, you can install it from the '''Synaptic Package Manager''' by going to '''System''' and '''Administration '''and clicking on '''Synaptic Package Manager'''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|01.24
+
−
 
+
−
| In the '''Synaptic Package Manager''' type the name of the application in the search bar and download and install it
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
| 01.32
+
−
 
+
−
| | Let us explore the '''KTurtle''' window .
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
| 01.34
+
−
 
+
−
| In this tutorial, I will briefly explain
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|01.36
+
−
 
+
−
| '''the editor,''' '''the canvas, the menubar, and the toolbar '''and also some of the input commands.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|01.43
+
−
 
+
−
| A typical KTurtle window looks like this.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|01.46
+
−
 
+
−
| It has the '''file, edit, canvas, run, tools, settings '''and '''help menu in the menu bar '''.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|01.53
+
−
 
+
−
| And the '''tool bar, '''has most of the used actions.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|01.57
+
−
 
+
−
| the '''editor '''is on the left, where you type the TurtleScript commands.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|02.00
+
−
 
+
−
| most of the functions of the editor can be found in the '''file '''and '''edit '''menus in the menu bar.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|02.06
+
−
 
+
−
| There are several ways to enter the code in your editor.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|02.09
+
−
 
+
−
| Easiest way is to use an example. T o open an example
+
−
 
+
−
|-
+
−
 
+
−
|02.13
+
−
 
+
−
| Go to the '''file '''menu choose the example sub menu and click on any of these options.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|02.19
+
−
| For example I will click on a example here and the chosen code appears inthe editor .
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|02.25
+
−
 
+
−
| You can select '''run ''' either from tool bar or the menu bar to execute the code present in your editor.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|02.32
+
−
| Another way to enter code in your editor is by directly typing that, or copy/paste some code in the editor
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|02.41
+
−
 
+
−
| (for example, from other kturtle files)
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
| 02.44
+
−
 
+
−
| The canvas is in the right, where the turtle makes a drawing.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|02.48
+
−
 
+
−
| The turtle draws accordingly to the commands it gets from the editor.
+
−
 
+
−
|-
+
−
 
+
−
| 02.54
+
−
| The '''run '''option on your tool bar starts the execution of the commands in the editor.
+
−
 
+
−
|-
+
−
|02.59
+
−
 
+
−
| It presents a full list of execution speeds.
+
−
 
+
−
|-
+
−
 
+
−
|03.02
+
−
 
+
−
| For example'''Full speed, slow, slower, slowest and step-by-Step'''
+
−
|-
+
−
 
+
−
|03.08
+
−
 
+
−
| the '''abort '''and the '''pause '''options allow you to stop and pause your executions respectively
+
  
 +
|-
 +
|03.04
 +
||Another way is to directly type your own code in the editor
  
 
|-
 
|-
 +
|03.10
 +
||or copy/paste some code in the editor
  
−
|03.15
 
−
 
−
| In this tutorial we will see '''how to move the Turtle '''?
 
−
 
−
 
−
|-
 
−
 
−
|03.18
 
−
 
−
| '''drawing lines and changing directions'''.
 
−
 
−
 
−
|-
 
−
 
−
|03.21
 
−
 
−
|And an example , of how  to draw a triangle
 
−
 
−
 
−
|-
 
−
|03.28
 
−
 
−
| | When you open '''KTurtle, '''
 
−
 
−
|-
 
−
|03.30
 
−
 
−
| The turtle is in the middle of the canvas by default.
 
−
 
 
|-
 
|-
−
 
+
|03.13
−
|03.33
+
||for example: from other '''KTurtle''' files
−
 
+
|-
−
| Let us start by getting the turtle to move.
+
||03.18
−
 
+
||Canvas is on the right, where '''Turtle''' makes your drawings.
−
 
+
−
  |-
+
−
 
+
−
|03.35
+
−
 
+
−
| The '''turtle '''can do three types of moves:
+
−
 
+
  
 
|-
 
|-
−
 
+
|03.24
−
|03.37
+
||'''Turtle''' draws accordingly to the commands it gets from the editor on the canvas
−
 
+
|-
−
| It can move forwards and backwards
+
||03.32
−
 
+
||'''Run''' option on the tool bar starts ''' execution''' of the commands in the editor.
  
 
|-
 
|-
−
 
 
|03.39
 
|03.39
 +
||It presents a list of execution speeds.
  
−
| It can turn left and right; and
+
|-
 +
|03.43
 +
||'''Full speed(No highlighting and inspector),'''
  
−
|-
+
|-
 +
|03.46
 +
||'''Full speed,'''
  
−
|03.41
+
|-
 +
|03.48
 +
||'''Slow,'''
  
−
| It can jump to any position on the canvas.
+
|-
 +
|03.49
 +
||'''Slower,'''
  
−
|-
+
|-
−
|03.44
+
|03.51
 +
||'''Slowest''' and
  
−
| Let us go through a simple example.
+
|-
 +
|03.52
 +
||'''Step-by-Step'''
  
−
|-
+
|-
−
|03.46
+
|03.55
−
| In your '''editor''', type the commands as I am typing
+
||'''Abort''' and  '''pause''' options allow you to stop and pause the executions respectively.
 +
|-
 +
||04.03
 +
||Let's now '''Run''' this code .
  
 +
|-
 +
|04.06
 +
||'''Turtle''' draws a '''flower''' on the canvas.
 +
|-
 +
||04.11
 +
||When you open a new '''KTurtle''' application.
  
−
|-
+
|-
−
|03.50
+
||04.15
−
| '''reset'''
+
||'''Turtle''' is in the middle of the canvas by '''default.'''  
  
−
|-
+
|-
 +
||04.19
 +
||Let's now move the '''Turtle.'''
  
−
|03.53
+
|-
−
| '''forward 100'''
+
||04.22
 +
||'''Turtle''' can do three types of moves:
  
−
|-
+
|-
−
|03.56
+
||04.25
 +
||It can move forwards. It can move backwards
  
−
| '''turnleft 120'''
+
|-
 +
||04.29
 +
||It can turn left or right.
  
−
|-
+
|-
 +
||04.32
 +
||It can also jump directly to a position on the screen.
 +
|-
 +
||04.38
 +
||Let me zoom into the program text it may possibly be a little blurred.
 +
|-
 +
||04.44
 +
||Let us go through a simple example.
  
−
|04.00
+
|-
 +
||04.48
 +
||In your editor, type the following commands:
  
−
| '''forward 100'''
+
|-
 +
||04.52
 +
||'''reset '''  
  
−
|-
+
|-
 +
||04.55
 +
||'''forward 100'''
  
−
|04.02
+
|-
 +
||04.58
 +
||'''turnright 120 '''
  
−
| '''turnleft 120'''
+
|-
 +
||05.02
 +
||'''forward  100'''  
  
−
|-
+
|-
−
|04.05
+
||05.07
 +
||'''turnright  120'''
  
−
| '''forward 100'''
+
|-
 +
||05.11
 +
||'''forward 100'''  
  
−
|-
+
|-
−
|04.08
+
||05.15
−
| '''turnleft 120'''
+
||'''turnright  120'''  
 +
|-
 +
||05.18
 +
||Note that the color of the code changes as we type .
  
 +
|-
 +
||05.23
 +
||This feature is called '''highlighting.'''
  
−
|-
+
|-
 +
||05.26
 +
||Different types of commands are highlighted differently,
  
−
|04.11
+
|-
 +
||05.31
 +
||which makes it easier to read '''large blocks''' of code.
 +
|-
 +
||05.36
 +
||I will explain the code now.
 +
|-
 +
|| 05.38
 +
||'''reset''' command sets Turtle to  '''default''' position.  
  
−
| Note that the color of the code is changing as we typed it.
+
|-
 +
||05.42
 +
||'''forward 100''' commands Turtle to move forward by '''100 pixels.'''
  
 +
|-
 +
||05.49
 +
||'''turnright 120'''  commands '''Turtle''' to turn, '''120 degrees anti-clockwise'''.
  
−
|-
+
|-
 +
||05.56
 +
||Note that these two commands are repeated thrice to draw a triangle.
 +
|-
 +
|| 06.03
 +
||Let's now execute the code.
  
−
|04.15
+
|-
 +
||06.06
 +
||I will choose ''' Slow''' step so that we understand what commands  are being executed.  
  
−
| This feature is called the '''''highlighting –'''''
+
|-
 +
||06.16
 +
||Here the triangle is drawn.
 +
|-
 +
||06.19
 +
||Let's look at another example and also learn how to beautify our canvas.
  
−
|-
+
|-
 +
||06.26
 +
||Let's draw a triangle using ''' repeat''' command.
  
−
|04.17
+
|-
 +
||06.30
 +
||I will clear the current program.
 +
|-
 +
||06.33
 +
||Let me zoom into the program text to have a clear view.
 +
|-
 +
||06.38
 +
||Type the following commands into your editor:
  
−
| Different types of commands are highlighted differently,
+
|-
 +
||06.41
 +
||'''reset'''
  
 +
|-
 +
||06.44
 +
||'''canvassize space 200,200 '''
  
−
|-
+
|-
 +
||06.51
 +
||'''canvascolor space 0,255,0''' 
  
−
|04.19
+
|-
 +
||07.00
 +
||'''pencolor space 0,0,255''' 
  
−
| which makes it easier to read large blocks of code.
+
|-
 +
||07.08
 +
||'''penwidth  space  2'''
  
−
|-
+
|-
 +
||07.12
 +
||'''repeat'''  space  '''3'''  within curly braces {
  
−
|04.23
+
|-
 +
||07.19
 +
||'''forward 100'''
  
−
  |To run this piece of code in the editor select '''run''' either from the tool bar or the menu bar and you can select any possible executions speeds from the menu.
+
|-
 +
||07.23
 +
||'''turnleft 120'''
 +
}
 +
|-
 +
|| 07.27
 +
||Let me now explain the code.
 +
|-
 +
||07.30
 +
||'''reset''' command sets '''Turtle''' to its '''default''' position.
 +
|-
 +
||07.34
 +
||'''canvassize 200,200''' sets the canvas width and height to 200 pixels.
 +
|-
 +
||07.42
 +
||'''canvascolor 0,255,0'''  makes the canvas ''' green.'''
  
−
  |-
+
|-
−
  |04.33
+
||07.48
 +
||'''0,255,0''' is a '''RGB''' Combination where only the green value is set to '''255''' and  the others are set to '''0'''.
 +
|-
 +
||08.03
 +
||This makes the canvas '''green''' in color.
 +
|-
 +
|| 08.07
 +
||'''pencolor 0,0,255''' sets the color of  pen to blue.  
  
−
| ''I will choose the '''Slower '''option so that we understand what
+
|-
−
commands are being executed.''
+
||08.14
 +
||'''RGB''' combination where blue value is set to '''255.'''
 +
|-
 +
||08.20
 +
||'''penwidth 2''' sets the width of the pen to 2 ''' pixels'''.
 +
|-
 +
||08.27
 +
||'''repeat''' command is followed by a number  and a list of commands within curly brackets.
  
−
|-
+
|-
 +
||08.33
 +
||This repeats the commands within the curly brackets the specified number of times.
 +
|-
 +
||08.39
 +
||Here the commands '''forward 100''' and '''turnleft 120''' are within curly brackets.
  
−
|04.41
+
|-
 +
||08.47-
 +
||'''repeat''' command is followed by the number '''3''', because a triangle has 3 sides.
  
−
| Before we execute the commands in the editor,let us see what the commands which are enter in the editor mean.
+
|-
 +
||08.54
 +
||These commands are run 3 times in a '''loop'''.  
  
 +
|-
 +
||08.59
 +
||3 sides of the triangle are drawn.
 +
|-
 +
||09.02
 +
||Let's Run the code now
  
−
|-
+
|-
−
|04.48
+
||09.05
 +
||I will select '''slow'''  option for execution of the program.  
  
−
| The '''forward 100 '''command instructs a turtle to move forward by 100 pixels.
+
|-
 +
||09.09
 +
||The canvas color becomes '''green''' and  the''' Turtle''' draws a triangle.
 +
|-
 +
|| 09.20
 +
||Let's now save the file.
  
−
|-
+
|-
 +
||09.23
 +
||Select '''File''' menu > '''Save As '''
  
−
|04.53
+
|-
 +
||09.27
 +
||'''Save As''' dialog box opens.
  
−
| The''' turnleft 120 '''instructs the turtle to turn to the left
+
|-
−
  ,anti-clockwise by 120 degrees.
+
||09.30
 +
||I will select '''Document''' folder for saving the file.  
  
 +
|-
 +
||09.34
 +
||I will type the file name as '''Triangle''' and click on '''Save''' button.
  
 +
|-
 +
||09.41
 +
||Notice that the name of the file appears in the '''top panel''' and it is saved as a dot turtle file like all '''Turtle''' files.
 +
|-
 +
||09.53
 +
||With this we come to the end of this tutorial.
  
−
|-
+
|-
 +
||09.57
 +
||Let's summarize.
 +
|-
 +
|09.59
 +
||In this tutorial, we have learnt about,
  
−
|05.01
+
|-
−
| '''Note that the '''forward 100 '''and '''turnleft 120 ''' commands have been repeated three times to draw the three sides of a triangle.
+
||10.02
 +
||KTurtle's '''editor, canvas, menubar''' and toolbar
  
 
|-
 
|-
 +
||10.07
 +
||  Move Turtle
  
−
|05.10
+
|-
 +
||10.09
 +
|| Draw '''lines and change directions '''
  
−
| Let us now run this piece of code by clicking on run, and choosing the option slower.
+
|-
 +
||10.13
 +
|| Draw a '''triangle'''
 +
|-
 +
||10.15
 +
||As an assignment I would like you to draw a '''square.''' using the commands.
  
−
|-
+
|-
 +
||10.21
 +
|| '''forward, backward, turnleft, turnright''' and '''repeat'''
  
−
|05.17
+
|-
 +
||10.26
 +
||* Set '''background color''', '''penwidth''' and '''pencolor'''  of your choice
  
−
|Note that the commands, which are getting executed are being highlighted in the editor
+
|-
 +
||10.32
 +
||Change values in the ''' RGB''' combination
 +
|-
 +
|| 10.37
 +
||Watch the video available at this URL http://spoken-tutorial.org/What is a Spoken Tutorial
  
−
|-
+
|-
 +
||10.40
 +
||It summarises the Spoken Tutorial project
  
−
|05.23
+
|-
 +
||10.44
 +
||If you do not have good bandwidth, you can download and watch it
 +
|-
 +
||10.48
 +
||The Spoken Tutorial Project Team :
  
−
|The turtles goes in the canvas and the triangle is drawn
+
|-
 +
||10.50
 +
||Conducts workshops using spoken tutorials
  
−
|-
+
|-
 +
||10.53
 +
||Gives certificates to those who pass an online test
  
−
|05.30
+
|-
−
 
+
||10.56
−
| '''We will now draw a triangle using the repeat loop'''
+
||For more details, please write to '''contact@spoken-tutorial.org'''  
−
 
+
|-
−
 
+
||11.03
−
|-
+
||Spoken Tutorial Project is a part of the Talk to a Teacher project
−
 
+
−
|05.34
+
−
| Type the commands as been shown on the screen
+
−
 
+
−
|-
+
−
 
+
−
|05.37
+
−
 
+
−
| '''reset'''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|05.39
+
−
 
+
−
| '''canvassize 200,200'''
+
−
 
+
−
 
+
−
  |-
+
−
 
+
−
|05.46
+
−
 
+
−
| '''canvascolor 0,255,0 '''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|05.55
+
−
 
+
−
| '''pencolor 0,0,255'''
+
−
 
+
−
|-
+
−
 
+
−
|06.02
+
−
| '''penwidth 2'''
+
−
 
+
−
|-
+
−
 
+
−
|06.06
+
−
| '''repeat followed by 3 {'''
+
−
'''forward 100'''
+
−
'''turnleft 120'''
+
−
 
+
−
 
+
−
'''}'''
+
−
 
+
−
|-
+
−
 
+
−
| 06.23
+
−
 
+
−
|Let us see, what this commands mean?
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|06.26
+
−
 
+
−
| The '''canvassize 200,200 '''sets the width of and height of the canvas to 200 pixels each.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|06.33
+
−
 
+
−
| The '''canvascolor 0,255,0 '''sets the canvas color to '''green. '''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|06.39
+
−
 
+
−
| 0,255,0 is a '''RGB Combination that is the Red-Green and Black
+
−
combination.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|06.45
+
−
 
+
−
| '''Here the '''green '''value is set to '''255 that is the totally Green for the canvas color is set to Green.
+
−
 
+
−
|-
+
−
 
+
−
|06.53
+
−
 
+
−
| The '''pencolor 0,0,255 '''sets the color of the pen to '''black '''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|06.59
+
−
 
+
−
| The '''penwidth 2 '''sets the the width of the pen to 2 pixels.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|07.04
+
−
 
+
−
| Here the '''repeat '''command is followed by a number and a list of
+
−
commands within curly brackets.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|07.11
+
−
 
+
−
| Here the commands '''forward 100 '''and '''turnleft 120 '''are within curly brackets, which means this repeats the commands within the curly brackets just specified number of times.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|07.21
+
−
 
+
−
|Here it mean '''repeat''' three.
+
−
 
+
−
|-
+
−
 
+
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|07.28
+
−
 
+
−
| Let us now '''run''' this code
+
−
 
+
−
|-
+
−
 
+
−
|07.31
+
−
 
+
−
| The canvas width and  height have been change now. The canvas color is now set to '''green'''
+
  
 +
|-
 +
||11.08
 +
||It is supported by the National Mission on Education  through ICT, MHRD, Government of India
  
 
|-
 
|-
−
 
+
||11.15
−
|07.38
+
||More information on this Mission is available at this link '''http://spoken-tutorial.org/NMEICT-Intro ] '''
−
 
+
−
|The pen color have been now set to '''black''' which you can see later.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|07.43
+
−
 
+
−
| The ''penwidth'' has been set to width 2 and now the controls enters therepeat loop.
+
−
 
+
−
|-
+
−
 
+
−
|07.48
+
−
 
+
−
| The turtles move forward by 100 pixels, turns left by 120 degrees moves forward again by 100 pixels,turns left again by 120degrees and moves forward by 100 pixels.
+
−
 
+
−
|-
+
−
| 08.01
+
−
 
+
−
|  the triangle is drawn now.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|08.03
+
−
 
+
−
| To save a file in a Kturtle, Go to the File menu and select '''save as'''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|08.11
+
−
 
+
−
| Choose is the location were you want to save your file and type the nameof your file.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|08.17
+
−
 
+
−
|I will give the name as '''triangle''' and save the filter as turtle codefiles and click '''save'''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|08.27
+
−
 
+
−
|Notice that the name of the file appears on the top panel and it is saved as a dot turtle file.
+
−
 
+
−
|-
+
−
 
+
−
|08.34
+
−
 
+
−
|To open a file go back to the File menu and choose open.
+
−
 
+
−
|-
+
−
 
+
−
| 08.41
+
−
 
+
−
| Now to the ASSIGNMENT
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|08.41
+
−
| I would like you to draw a '''square''' by using the '''commands '''which we have just learnt'''.'''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|08.47
+
−
 
+
−
| That is , use the'''forward, backward, turnleft, turnright and repeat commands '''
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
|08.53
+
−
 
+
−
| Also customize your canvas by setting appropriate background color,
+
−
penwidth pencolor to a color of your choice
+
−
 
+
  
 
|-
 
|-
−
 
+
||11.20
−
|09.02
+
||The script is contributed by '''IT for Change Bangaluru'''.
−
 
+
−
| I have solved the assignment and the square should look like this.
+
−
 
+
−
|-
+
−
 
+
−
|09.10
+
−
 
+
−
| I would like to acknowledge the spoken tutorial project
+
−
 
+
  
 
|-
 
|-
−
 
+
||11.24
−
|09.13
+
||This is Madhuri Ganpathi from '''IIT Bombay''' signing off.  
−
 
+
Thank you for joining.  
−
| which is a part of the talk to a teacher project.
+
|-
−
 
+
−
 
+
−
|-
+
−
 
+
−
|09.16
+
−
 
+
−
| Supported by the National Mission on Education through ICT, MHRD
+
−
government of India.
+
−
 
+
−
|-
+
−
|09.21
+
−
 
+
−
| you can see more information on the spoken tutorial website.
+
−
 
+
−
 
+
−
|-
+
−
 
+
−
| 09.25
+
−
 
+
−
| Thank you this is Sindhu signing off. Enjoy exploring KTurtle.
+
−
 
+
−
 
+
−
|}
+

Revision as of 15:27, 1 April 2013

Visual Cue Narration
00.01 Hello everybody. Welcome to this tutorial on Introduction to KTurtle.
00.07 In this tutorial I will introduce you to the basics of getting started with KTurtle.
00.14 In this tutorial, we will learn about
00.17 KTurtle Window
00.19 Editor
00.20 Canvas
00.21 Menu Bar
00.22 Toolbar
00.24 We will also learn about,
00.26 Moving the Turtle

-

00.28 Drawing lines and changing directions
00.32 Draw a triangle
00.34 To record this tutorial I am using Ubuntu Linux OS version. 12.04. KTurtle version. 0.8.1 beta.
00.47 What is KTurtle?
00.49 KTurtle is a free tool to learn basic programming.
00.53 It is useful for computer aided interactive learning
00.59 KTurtle is available for download at http://edu.kde.org/kturtle/
01.12 KTurtle makes programming easy and accessible .
01.18 Helps teach kids basics of mathematics.
01.22 Translates commands to speaking language of the programmer
01.27 Translates commands into visuals.
01.31 We can install KTurtle using Synaptic Package Manager .
01.36 for more information on Synaptic Package Manager

01.40 please refer to Ubuntu Linux tutorials on our websitehttp://spoken-tutorial.org
01.46 Let's open a new KTurtle Application.
01.50 Click on Dash home.
01.52 In the Search bar, type KTurtle.
01.55 And Click on the KTurtle icon.
01.59 A typical KTurtle window looks like this.
02.02 This is the Menubar.
02.04 In the menu bar on the top,
02.06 You will find menu items
02.08 File, Edit, Canvas, Run, Tools, Settings and help options
02.17 In the tool bar, you can reach for most of the actions used.
02.23 Editor is on the left, where you can type the TurtleScript commands.
02.30 Most of the functions of the editor can be found in the File and Edit menus.
02.37 There are several ways to enter the code in the editor.
02.42 Easiest way is to use an example.
02.46 Go to File menu > select Examples
02.50 Here I will select a flower
02.53 Code of the selected example opens in the editor.
02.58 Click on the Run button from Menu bar or Tool bar to run the code.
03.04 Another way is to directly type your own code in the editor
03.10 or copy/paste some code in the editor
03.13 for example: from other KTurtle files
03.18 Canvas is on the right, where Turtle makes your drawings.
03.24 Turtle draws accordingly to the commands it gets from the editor on the canvas
03.32 Run option on the tool bar starts execution of the commands in the editor.
03.39 It presents a list of execution speeds.
03.43 Full speed(No highlighting and inspector),
03.46 Full speed,
03.48 Slow,
03.49 Slower,
03.51 Slowest and
03.52 Step-by-Step
03.55 Abort and pause options allow you to stop and pause the executions respectively.
04.03 Let's now Run this code .
04.06 Turtle draws a flower on the canvas.
04.11 When you open a new KTurtle application.
04.15 Turtle is in the middle of the canvas by default.
04.19 Let's now move the Turtle.
04.22 Turtle can do three types of moves:
04.25 It can move forwards. It can move backwards
04.29 It can turn left or right.
04.32 It can also jump directly to a position on the screen.
04.38 Let me zoom into the program text it may possibly be a little blurred.
04.44 Let us go through a simple example.
04.48 In your editor, type the following commands:
04.52 reset
04.55 forward 100
04.58 turnright 120
05.02 forward 100
05.07 turnright 120
05.11 forward 100
05.15 turnright 120
05.18 Note that the color of the code changes as we type .
05.23 This feature is called highlighting.
05.26 Different types of commands are highlighted differently,
05.31 which makes it easier to read large blocks of code.
05.36 I will explain the code now.
05.38 reset command sets Turtle to default position.
05.42 forward 100 commands Turtle to move forward by 100 pixels.
05.49 turnright 120 commands Turtle to turn, 120 degrees anti-clockwise.
05.56 Note that these two commands are repeated thrice to draw a triangle.
06.03 Let's now execute the code.
06.06 I will choose Slow step so that we understand what commands are being executed.
06.16 Here the triangle is drawn.
06.19 Let's look at another example and also learn how to beautify our canvas.
06.26 Let's draw a triangle using repeat command.
06.30 I will clear the current program.
06.33 Let me zoom into the program text to have a clear view.
06.38 Type the following commands into your editor:
06.41 reset
06.44 canvassize space 200,200
06.51 canvascolor space 0,255,0
07.00 pencolor space 0,0,255
07.08 penwidth space 2
07.12 repeat space 3 within curly braces {
07.19 forward 100
07.23 turnleft 120

}

07.27 Let me now explain the code.
07.30 reset command sets Turtle to its default position.
07.34 canvassize 200,200 sets the canvas width and height to 200 pixels.
07.42 canvascolor 0,255,0 makes the canvas green.
07.48 0,255,0 is a RGB Combination where only the green value is set to 255 and the others are set to 0.
08.03 This makes the canvas green in color.
08.07 pencolor 0,0,255 sets the color of pen to blue.
08.14 RGB combination where blue value is set to 255.
08.20 penwidth 2 sets the width of the pen to 2 pixels.
08.27 repeat command is followed by a number and a list of commands within curly brackets.
08.33 This repeats the commands within the curly brackets the specified number of times.
08.39 Here the commands forward 100 and turnleft 120 are within curly brackets.
08.47- repeat command is followed by the number 3, because a triangle has 3 sides.
08.54 These commands are run 3 times in a loop.
08.59 3 sides of the triangle are drawn.
09.02 Let's Run the code now
09.05 I will select slow option for execution of the program.
09.09 The canvas color becomes green and the Turtle draws a triangle.
09.20 Let's now save the file.
09.23 Select File menu > Save As
09.27 Save As dialog box opens.
09.30 I will select Document folder for saving the file.
09.34 I will type the file name as Triangle and click on Save button.
09.41 Notice that the name of the file appears in the top panel and it is saved as a dot turtle file like all Turtle files.
09.53 With this we come to the end of this tutorial.
09.57 Let's summarize.
09.59 In this tutorial, we have learnt about,
10.02 KTurtle's editor, canvas, menubar and toolbar
10.07 Move Turtle
10.09 Draw lines and change directions
10.13 Draw a triangle
10.15 As an assignment I would like you to draw a square. using the commands.
10.21 forward, backward, turnleft, turnright and repeat
10.26 * Set background color, penwidth and pencolor of your choice
10.32 Change values in the RGB combination
10.37 Watch the video available at this URL http://spoken-tutorial.org/What is a Spoken Tutorial
10.40 It summarises the Spoken Tutorial project
10.44 If you do not have good bandwidth, you can download and watch it
10.48 The Spoken Tutorial Project Team :
10.50 Conducts workshops using spoken tutorials
10.53 Gives certificates to those who pass an online test
10.56 For more details, please write to contact@spoken-tutorial.org
11.03 Spoken Tutorial Project is a part of the Talk to a Teacher project
11.08 It is supported by the National Mission on Education through ICT, MHRD, Government of India
11.15 More information on this Mission is available at this link http://spoken-tutorial.org/NMEICT-Intro ]
11.20 The script is contributed by IT for Change Bangaluru.
11.24 This is Madhuri Ganpathi from IIT Bombay signing off.

Thank you for joining.

Contributors and Content Editors

Devraj, Madhurig, PoojaMoolya, Pratik kamble, Sandhya.np14, Sneha

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