Difference between revisions of "KTurtle/C3/Question-Glues/English-timed"
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| − | ||In this tutorial, we will learn the following question | + | ||In this tutorial, we will learn the following '''question glue'''s '''and, not'''. |
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|| 00:16 | || 00:16 | ||
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||00:29 | ||00:29 | ||
| − | ||We assume that you have basic working knowledge of '''KTurtle''' and | + | ||We assume that you have basic working knowledge of '''KTurtle''' and “if-else” statement in KTurtle. |
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| − | ||'Question glue' words enable us to glue small questions into one big question. | + | ||'''Question glue''' words enable us to glue small questions into one big question. |
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||01:00 | ||01:00 | ||
| − | ||“and”, “or” and “not” are some glue | + | ||“and”, “or” and “not” are some glue words. Glue words are used together with 'if-else' conditions. |
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||01:11 | ||01:11 | ||
| − | ||Let's open a new''' KTurtle | + | ||Let's open a new''' KTurtle Application'''. |
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||01:15 | ||01:15 | ||
| − | ||Click on | + | ||Click on '''Dash home'''. |
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||01:18 | ||01:18 | ||
| − | ||In the Search bar, type: " | + | ||In the Search bar, type: "kturtle" |
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||01:22 | ||01:22 | ||
| − | || | + | ||and click on the option. |
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||01:24 | ||01:24 | ||
| − | ||Let's begin the tutorial with glue word | + | ||Let's begin the tutorial with glue word "and". |
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||01:28 | ||01:28 | ||
| − | ||I already have a program in a | + | ||I already have a program in a text-editor. |
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||01:33 | ||01:33 | ||
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||01:46 | ||01:46 | ||
| − | ||Resume the tutorial after typing | + | ||Resume the tutorial after typing the program. |
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||01:50 | ||01:50 | ||
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||02:04 | ||02:04 | ||
| − | ||Message in a program is given within double quotes after the keyword | + | ||Message in a program is given within double quotes after the keyword "message" . |
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||02:10 | ||02:10 | ||
| − | || | + | ||“message” command takes '''string''' as input. |
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||02:14 | ||02:14 | ||
| − | ||It shows a pop-up dialog box containing text from the '''string''' and also generates a beep for non | + | ||It shows a pop-up dialog-box containing text from the '''string''' and also generates a beep for non-null strings. |
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||02:24 | ||02:24 | ||
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||02:30 | ||02:30 | ||
| − | || | + | ||“ask” command prompts for user input, to be stored in variables. |
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||02:36 | ||02:36 | ||
| − | ||'''if(($a+$b>$c) and ($b+$c>$a) and ($c+$a>$b)''', checks the | + | ||'''if(($a+$b>$c) and ($b+$c>$a) and ($c+$a>$b)''', checks the “if” condition. |
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||02:49 | ||02:49 | ||
| − | ||When the two questions glued with ''' | + | ||When the two questions glued with “and” are '''true''', result is '''true'''. |
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|| 02:55 | || 02:55 | ||
| − | ||'''if(($a != $b) and ($b != $c) and ($c != $a))'' checks the | + | ||'''if(($a != $b) and ($b != $c) and ($c != $a))'' checks the "if" condition. |
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||03:05 | ||03:05 | ||
| − | ||when | + | ||when 'if' condition above is '''true''', control moves into '''nested if''' block. |
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||03:35 | ||03:35 | ||
| − | ||'''print''' command displays the '''string''' after checking the | + | ||'''print''' command displays the '''string''' after checking the 'if' condition. |
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||03:41 | ||03:41 | ||
| − | || | + | ||'else' command checks '''else''' condition when 'if' condition in the block is '''false'''. |
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||03:48 | ||03:48 | ||
| − | ||'''' | + | ||'print' command displays the '''string''' after checking the '''else''' condition. |
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||03:54 | ||03:54 | ||
| − | || | + | ||'else' command checks the final condition. |
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||03:57 | ||03:57 | ||
| − | ||Here '''else''' is checked only when above conditions are '''false'''. | + | ||Here, '''else''' is checked only when above conditions are '''false'''. |
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||04:03 | ||04:03 | ||
Revision as of 13:11, 25 February 2016
| Time | Narration |
| 00:01 | Hello and welcome to the spoken tutorial on Question Glues in KTurtle. |
| 00:08 | In this tutorial, we will learn the following question glues and, not. |
| 00:16 | To record this tutorial, I am using:
|
| 00:29 | We assume that you have basic working knowledge of KTurtle and “if-else” statement in KTurtle. |
| 00:39 | If not, for relevant tutorials, please visit our website: |
| 00:46 | Before proceeding, let me explain about question glue words. |
| 00:51 | Question glue words enable us to glue small questions into one big question. |
| 01:00 | “and”, “or” and “not” are some glue words. Glue words are used together with 'if-else' conditions. |
| 01:11 | Let's open a new KTurtle Application. |
| 01:15 | Click on Dash home. |
| 01:18 | In the Search bar, type: "kturtle" |
| 01:22 | and click on the option. |
| 01:24 | Let's begin the tutorial with glue word "and". |
| 01:28 | I already have a program in a text-editor. |
| 01:33 | Let me copy the code from the text editor and paste it into KTurtle editor. |
| 01:40 | Please pause the tutorial here and type the program into your KTurtle editor. |
| 01:46 | Resume the tutorial after typing the program. |
| 01:50 | Let me zoom into the program text. |
| 01:52 | It may possibly be a little blurred. |
| 01:56 | Let's look at the code. |
| 01:59 | reset command sets Turtle to its default position. |
| 02:04 | Message in a program is given within double quotes after the keyword "message" . |
| 02:10 | “message” command takes string as input. |
| 02:14 | It shows a pop-up dialog-box containing text from the string and also generates a beep for non-null strings. |
| 02:24 | $a, $b and $c are variables that store user input. |
| 02:30 | “ask” command prompts for user input, to be stored in variables. |
| 02:36 | if(($a+$b>$c) and ($b+$c>$a) and ($c+$a>$b), checks the “if” condition. |
| 02:49 | When the two questions glued with “and” are true, result is true. |
| 02:55 | 'if(($a != $b) and ($b != $c) and ($c != $a)) checks the "if" condition. |
| 03:05 | when 'if' condition above is true, control moves into nested if block. |
| 03:12 | It checks whether sides of triangle are unequal. |
| 03:17 | fontsize 18 sets the font-size used by print command. |
| 03:22 | go 10,100 commands Turtle to go 10 pixels from left of canvas and 100 pixels from top of canvas. |
| 03:35 | print command displays the string after checking the 'if' condition. |
| 03:41 | 'else' command checks else condition when 'if' condition in the block is false. |
| 03:48 | 'print' command displays the string after checking the else condition. |
| 03:54 | 'else' command checks the final condition. |
| 03:57 | Here, else is checked only when above conditions are false. |
| 04:03 | print command displays the string after checking the 'else' condition. I will run the code to check all the conditions. |
| 04:12 | Let's click on the Run button to run the program. |
| 04:15 | A message dialog box pops-up. Let me click OK. |
| 04:20 | Let's enter 5 for 'length of AB' and click OK, |
| 04:25 | 8 for 'length of BC' and click OK, |
| 04:29 | 9 for 'length of AC' and click OK. |
| 04:33 | “A scalene triangle” is displayed on the canvas. |
| 04:37 | Let's run again. |
| 04:40 | A message dialog box pops up. Let me click OK. |
| 04:44 | Let's enter 5 for length of 'AB' and click OK, 6 for length of 'BC' and click OK, 6 for length of 'AC' and click OK. |
| 04:58 | “ Not a scalene triangle” is displayed on the canvas. |
| 05:02 | Let's run again to check default condition. |
| 05:06 | A message dialog box pops up. Let me click OK. |
| 05:11 | Let's enter 1 for length of 'AB' and click OK, |
| 05:16 | 1 for length of 'BC' and click OK, |
| 05:20 | 2 for length of 'AC' and click OK. |
| 05:24 | " Does not satisfy triangle's inequality " is displayed on the canvas. |
| 05:30 | Let's now clear this program. Let me type clear command and run. clear command cleans the canvas. |
| 05:40 | Let's next work with '"not" condition. |
| 05:43 | Let me copy the program from the text editor and paste it into KTurtle editor. |
| 05:51 | Please pause the tutorial here and type the program into your KTurtle editor. |
| 05:56 | Resume the tutorial after typing the program. |
| 06:01 | Let me zoom into the program text and explain the program. |
| 06:05 | reset command sets Turtle to default position. |
| 06:09 | $a, $b and $c are variables that store user input. |
| 06:15 | if not (($a==$b) and ($b==$c) and ($c==$a))checks the if not condition. |
| 06:27 | not is a special question glue-word. It inverses the logical state of its operand. |
| 06:36 | e.g. If the given condition is true, "not" makes it false. |
| 06:42 | and when the condition is false, the output will be true. |
| 06:48 | print command displays the string after checking the if not condition. |
| 06:55 | else command is executed when if condition is false. |
| 07:01 | print command displays the string after checking the else condition. |
| 07:07 | go 100,100 commands Turtle to go 100 pixels from left of canvas and 100 pixels from top of canvas. |
| 07:20 | repeat 3{turnright 120 forward 100} commands turtle to draw an equilateral triangle on the canvas. |
| 07:32 | Let me run the program to check all the conditions. |
| 07:36 | Press F5 key to run the code. |
| 07:40 | Enter 6 for length of AB and click OK. |
| 07:45 | Enter 5 for length of BC and click OK. |
| 07:48 | Enter 7 for length of AC and click OK. |
| 07:54 | “Triangle is not equilateral” is displayed on the canvas. |
| 07:58 | Let's run again. Let's enter 5 for length of AB and click OK, |
| 08:05 | 5 for length of BC and click OK, |
| 08:09 | 5 for length of AC and click OK. |
| 08:13 | “Triangle is equilateral” is displayed on the canvas. An equilateral triangle is drawn on the canvas. |
| 08:21 | With this we come to the end of this tutorial. |
| 08:25 | Let's summarize. |
| 08:28 | In this tutorial, we have learnt the question glues- "and", "not". |
| 08:35 | As an assignment, I would like you to write program to determine- |
| 08:40 | * Angle concept for right angled triangle using question glue “or” |
| 08:48 | * Structure of if or condition is: |
| 08:51 | if within brackets condition or within brackets condition or within brackets condition. |
| 08:59 | Within curly brackets do something |
| 09:02 | else within curly brackets do something. |
| 09:06 | Watch the video available at this URL: |
| 09:10 | It summarizes the Spoken Tutorial project. |
| 09:13 | If you do not have good bandwidth, you can download and watch it. |
| 09:18 | The Spoken Tutorial Project team : |
| 09:20 | * Conducts workshops using spoken tutorials. |
| 09:23 | * Gives certificates to those who pass an online test. |
| 09:27 | For more details, please write to:
contact@spoken-tutorial.org |
| 09:34 | Spoken Tutorial project is a part of the Talk to a Teacher project. |
| 09:38 | It is supported by the National Mission on Education through ICT, MHRD, Government of India. |
| 09:44 | More information on this mission is available at this link: |
| 09:49 | 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
