Lesson 0 Problem Solving

Challenge 1 : Only nine keys

What is the name of his friend?

• Miriam

• Iris

• Emma

• Ina

Challenge 2 "Toothbrushes"

Which two beavers still need to swap their toothbrushes so that all the beavers have the correct brushes?

• Ben and Chad

• Ann and Eve

• Ben and Dan

• Nobody

Challenge 3 "Mobile phones"

• 3 hours

• 2 hours

• 1 hour and a half

• 1 hour

Challenge 4 "Space Maze"

Which instructions should the explorers send the robot in order for it to reach the golden object?

• Ha' poS poS Ha' Ha' nIH

• Ha' poS poS Ha' nIH Ha'

• Ha' Ha' poS Ha'

• Ha' poS nIH vl'ogh Ha' poS

Challenge 8 "Right rectangles"

Which set of instructions does NOT result in the requested drawing?

• 4x(2x(Orange, Turn),Orange, 3x(Black), Orange, Turn)

• 4x(2x(Orange, Turn), 3x(Black) , 2x(Orange, Turn))

• 4x(3xBlack, 3x(Orange, Turn), Orange)

• 4x(Black, 3x(Orange, Turn), Orange, 2x(Black))

Dry Run 1 :

What is the final value of x ?

What is the final value of y?

• final value of x is 5

  final value of y is 5

• final value of x is 5

  final value of y is 7

• final value of x is 7

  final value of y is 5

• final value of x is 7

  final value of y is 7

Dry Run 2 :

What is the final value of x ?

What is the final value of y?

• final value of x is 5

  final value of y is 5

• final value of x is 5

  final value of y is 7

• final value of x is 7

  final value of y is 5

• final value of x is 7

  final value of y is 7

Dry Run 3 :

What is the final value of red is?

What is the final value of blue is ?

• the final value of red is "yellow"

  the final value of blue is "red"

• the final value of red is "blue"

  the final value of blue is "red"

• the final value of red is "yellow"

  the final value of blue is "yellow"

• the final value of red is "red"

  the final value of blue is "yellow"

Dry Run 4 :

What is the final value of one is?

What is the final value of two is ?

What is the final value of three is ?

• the final value of one is 1

  the final value of two is 3

  the final value of three is 2

• the final value of one is 3

  the final value of two is 2

  the final value of three is 2

• the final value of one is 3

  the final value of two is 1

  the final value of three is 2

• the final value of one is 2

  the final value of two is 2

  the final value of three is 2