Nested Loop

NESTED LOOPS

​Let's Recap

What are LOOPS?

​Definition - Loops

When you repeat the same action more than 1 time it is a Loop.

​Definition - Nested Loops

A loop inside of another loop.

Simple algorithm (code) to draw a square with length 200 pixels (px)

Code using loop

Code without using loop

Comparison of two algorithms to draw a square with length 200 pixels

​Algorithm to draw 3 square each with length 100 pixels and at a distance of 50 pixels away from each other.

Note: The command 'Jump forward by 150' is because the side of square + distance between 2 squares, i.e 100 + 50 = 150.

Code using nested loop

Code without nested loop

Comparison of two algorithms to draw 3 square each with length 100 pixels and at a distance of 50 pixels away from each other.

Multiple Choice

How many times will the bee move forward?

• 10

• 5

• 2

• 7

Multiple Choice

Can you nest more than two loops?

• Yes

• No

Multiple Choice

What shape does this code make?

• Rectangle

• Triangle

• Square

• Circle

Multiple Choice

Which is the correct code for this puzzle?

Multiple Choice

Which is the correct way to shorten this code?

(click the picture to make it bigger)

Multiple Choice

The artist has to draw a window for the spaceship.

How many times does the pattern need to repeat in order to complete the picture?

Multiple Choice

What number should replace the "?" in the code?

(click the picture to make it bigger)

• 3

• 4

• 12

• 11

Multiple Choice

How many lines will the artist draw based on the code in the picture?

(click the picture to make it bigger)

• 1

• 2

• 3

• 4

Multiple Choice

The following blocks will allow the bee to eat all the nectar.

(click the picture to make it bigger)

• True

• False

Multiple Choice

How many times will the Bee move forward?

• 6

• 3

• 8

• 100

Multiple Choice

How many times will the Bee move forward?

• 15

• 10

• 8

• 12

Multiple Choice

What is a loop inside of a loop called?

• Loopity Loops

• Double Loops

• Nested Loops

• Bird Loops