KTurtle/C2/Introduction-to-KTurtle/English-timed

Time	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 Canvas
00:21	Menu Bar 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 website: http://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 Menu-bar.
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 toolbar, 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 according to the commands it gets from the editor on the canvas.
03:32	Run option on the toolbar 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 forward, 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 the 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 summarizes 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