Difference between revisions of "KTurtle/C2/Introduction-to-KTurtle/English-timed"
From Script | Spoken-Tutorial
| Line 41: | Line 41: | ||
|| Moving the '''Turtle''' | || Moving the '''Turtle''' | ||
| − | - | + | |- |
|00.28 | |00.28 | ||
||Drawing '''lines and changing directions''' | ||Drawing '''lines and changing directions''' | ||
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
