This is taking too long!

Lesson 2 – Subroutines and parameters with LOGO

Do you know what this code is doing?1. REPEAT 4 [FORWARD 100 RIGHT 90]

2. REPEAT 8 [FORWARD 100 RIGHT 45]

3. REPEAT 4 [~ REPEAT 4 [FORWARD 100 RIGHT 90] FORWARD 110]

4. REPEAT 6 [FORWARD 100 RIGHT 60]

To do1. Go to Start > Internet

2. Go to Departments > Information Technology, Lessons > Year 8

3. Click on GameGirl > Lesson 2

4. Click on ‘Subroutines’ underneath ‘Activity 2’.

Saving our work1. In Logo, do the following

a) Go to File > Save Asb) Click on My Documents > Logoc) Save it as ‘Lesson 2 – Subs’

2. Go back to Microsoft Word. In Word, do the following

a) Go to File > Save Asb) Click on My Documents > Logoc) Press ‘Save’

Getting into MSWLogo1. Go to Start > All Programs > Curriculum

2. Go to ICT > MSWLogo

3. Click on ‘EdAll’ at the bottom of the screen to enter in the subroutines.

Using subroutinesTO SQUARE REPEAT 4 [FORWARD 100 RIGHT 90]END

TO SQUARE1 REPEAT 4 [FORWARD 200 RIGHT 90]END

TO OCTAGON REPEAT 8 [FORWARD 100 RIGHT 45]END

TO OCTAGON1 REPEAT 8 [FORWARD 200 RIGHT 45]END

Using variablesTO SQUARE :size

REPEAT 4 [FORWARD :size RIGHT 90]

END

TO OCTAGON :size

REPEAT 8 [FORWARD :size RIGHT 90]

END

The same shape multiple times close together

TO MOVINGSQUARE :size

REPEAT 4 [FORWARD :size RIGHT 90]

FORWARD :size + 10

REPEAT 4 [FORWARD :size RIGHT 90]

…

END

Using the FOR keywordTO MOVINGSQUARE :size :repeat

REPEAT 4 [FORWARD :size RIGHT 90]

FOR [i 0 :repeat 1] [~

RIGHT 90 FORWARD :size + :i

REPEAT 4 [FORWARD :size RIGHT 90]

]

END