3. Computational thinking

Think about the Kojo turtle.

What shape would these commands draw:

forward(100)

right(90)

forward(50)

right(90)

forward(100)

right(90)

forward(50)

• Rectangle

• Square

• Parallelogram

• Circle

John wants to draw a letter L. Which series of commands will draw the shape?

• back(100)

  right(90)

  forward(50)

• back(100)

  forward(90)

  forward(50)

• right(180)

  forward(100)

  right(90)

  forward(50)

• forward(50)

  right(90)

  forward(25)

Which of these commands is NOT a valid command?

• forward()

• farword()

• right()

• back()

What instruction will raise the pen and stop drawing?

• penDown()

• penUP()

• penHop()

• PenWidth()

Repeat can be used to.....

repeat(4){

forward(100)

right(90)

}

• make the same script run only once.

• make the same script run a set number of times.

• make the turtle move forward.

• to make a decision.

What will the following code do?

right(30)

forward(100)

right(120)

forward(100)

right(120)

forward(100)

• Draw a triangle

• Draw a red pentagon

• Draw nothing at all

• Draw a red square