Presentation created for use with staff to introduce 'Coding'

1. Working with ‘CODE’
- An introduction to algorithms and pseudo-code.
- A look at Binary digits and how they work
- Beginning LOGO with basic commands
- Sample worksheets and activities
Michael Macnamara 2014

2. Most people picture something like this when thinking about ‘Coding’

3. We see the result of that code every day !!

4. procedure n 1 a: a particular way of
accomplishing something or of acting 2: a
series of steps followed in a regular definite
order. ( Webster's New Collegiate Dictionary )
http://www.abc.net.au/btn/story/s3720544.htm

5. http://www.youtube.com/watch?v=k0xgjUhEG3U

10. Start
Insert original
Input 23
Press ‘Go’
Wait
Does copy
output equal
input
number ?
Output = 23
Remove original
Stop
No

11. http://code.org/educate/k5
http://csunplugged.org/
http://scratch.mit.edu/
http://www.kodugamelab.com/
http://www.alice.org/index.php
http://pencilcode.net/

12. http://www.youtube.com/watch?v=b6vHZ95XDwU

13. Why ‘BINARY NUMBERS’ ?
Computers work on electrical circuits which can have TWO states –
OFF or ON
This aligns perfectly to a number system with TWO digits –
‘0 & 1’
CISCO online BINARY game ….
http://forums.cisco.com/CertCom/game/binary_game_page.htm?site=celc
To download this game for ‘iPad / iPhone’ or ‘Android’ use this link …
https://learningnetwork.cisco.com/docs/DOC-11119

15. http://teachers.egfi-k12.org/bits-binary/
http://www.mathsisfun.com/binary-number-system.html

16. http://lightbot.com/hocflash.html

17. The next few pages are for creating paper copies.

18. The Logo Primitives - Basic Logo Commands
There about 200 logo commands. It is not necessary to know all of them to draw in logo.
The following instructions are the first you need to know to get started.
Instruction Shortcut Description
SHOWTURTLE ST Shows the Turtle on the screen
HIDETURTLE HT Hides the Turtle from the screen
FORWARD number FD Moves the Turtle forward according to the number
indicated
BACK number BK Moves the Turtle back according to the number
indicated
RIGHT angle RT Changes the direction of the Turtle by turning it to the
right
LEFT angle LT Changes the direction of the Turtle by turning it to the
left
CLEARSCREEN CS Erase the picture before a new picture is drawn
REPEAT number [ ] No shortcut Repeats a command [inside brackets] a number of
times
PENUP PU Lets you move Turtle without leaving a line
PENDOWN PD Used after PU to let Turtle leave a line again

19. Let 1 square = 10 steps.
Write the ‘code’ to
move turtle from
‘Start to Finish’ through
the path.

20. Write the ‘code’ to
move turtle around
the shape outlines.
SQUARE
RECTANGLE
Equilateral
TRIANGLE
CIRCLE