turtle_iteration_BN23

turtle coding

python turtle with Edublocks

goals

​O remind ourselves how to draw with a turtle

​O use iteration (looping) to destroy reality

​O understand how iteration (looping) works

Multiple Choice

Turtle coding on Edublocks uses what programming language?

• javascript

• python

• C++

• your mum

Multiple Choice

Iteration means what?

• lines of code in the right order

• when code asks a question

• repeating some lines of code in a loop

• lines of code in the wrong order

goals

​O remind ourselves how to draw with a turtle

​O use iteration (looping) to destroy reality

​O understand how iteration (looping) works

​setting up your turtle baby

1. Click the link above to begin

2. Find out what to add to the code to make your turtle look like a turtle

3. Challenge: can you use colours for background and your turtle? Can you draw a square? A Hexagon?

​https://project.edublocks.org/KTBB

​questions -- do we completely understand?

goals

​O remind ourselves how to draw with a turtle

​O use iteration (looping) to destroy reality

​O understand how iteration (looping) works

Multiple Choice

What is used to turn the turtle?

• .speed()

• .turn()

• .forward()

• .left()

Open Ended

turtle.backward(20)

turtle.left(90)

turtle.forward(80)

Describe what this turtle code would do.

Where would the turtle move?

And what would it look like in the end?

​using loops to iterate code over and over...

1. Click the link above to begin

2. Fix the bug -- the code should draw a square. What number do you need to change?

3. Challenge: adapt the code so that it draws a different shape or pattern.

https://project.edublocks.org/Xsy4

​questions -- do we completely understand?

Open Ended

Describe why this code, which uses iteration (a loop), would not draw a square.

Extra challenge:

can you predict what pattern or shape this code would make?

goals

​O remind ourselves how to draw with a turtle

​O use iteration (looping) to destroy reality

​O understand how iteration (looping) works

Multiple Choice

What is another word for looping?

• choosing

• imitating

• turtling

• iterating

Multiple Choice

How many times would we need to iterate (loop) to draw a hexagon?

• 2

• 4

• 6

• 8

Multiple Choice

What does turtle.width( ) do?

• sets the thickness of lines

• makes the turtle move from side to side

• changes the background colour

Multiple Choice

How can you make the turtle turn clockwise?

• turtle.left()

• turtle.right()

• turtle.backward()

Multiple Choice

What does the number mean in a for loop?

e.g.

for i in range( 4 )

• turns the turtle in a range of 4 degrees

• sets the number of iterations the code will repeat

• makes the turtle move 4 times as fast

goals

​O remind ourselves how to draw with a turtle

​O use iteration (looping) to destroy reality

​O understand how iteration (looping) works

​time to destroy reality

1. copy the code to make this pattern

2. can you change it to create a different pattern?

3. Can you destroy reality?