# Block based programming lesson 2

Do Now
Predict the outcome of the code.
1 / 13
Slide 1: Open vraag
ComputingLower Secondary (Key Stage 3)

In deze les zitten 13 slides, met interactieve quizzen en tekstslides.

Lesduur is: 50 min

## Onderdelen in deze les

Do Now
Predict the outcome of the code.

#### Slide 1 -Open vraag

Lesson 2: Block based programming
Year 7 – Understanding the fundamentals of programming

#### Slide 2 -Tekstslide

Lesson objectives
Conquer: Understand the concept of loops in a program

Aspire: Create a set of loops to make a program more efficient.

#### Slide 3 -Tekstslide

Making tea
Last week we looked at the process we would follow to make 1 cup of tea.

• If this was a program we have coded, and we wanted to create 5 cups of tea we would have to repeat the instructions 5 times.

#### Slide 4 -Tekstslide

Our instructions would look like this

#### Slide 5 -Tekstslide

For 25 cups of tea
This would take a really long time if we were writing this program, so we created a coding concept called a loop.

#### Slide 6 -Tekstslide

What could you do to these
instructions to loop them?

#### Slide 7 -Open vraag

Using a Loop​
• A loop in a computer program is set of instructions that are repeated until the loop meets a STOP condition.​

• A STOP condition will tell the program when it’s completed.​

#### Slide 8 -Tekstslide

So instead of 10 lines of code, we can do it in 2.

#### Slide 9 -Tekstslide

Lets have a go at programming some sequences.
(ISL)
We now want BB8 to reach his treasured scrap, but we have a limit on the amount of code we can use.
Limited blocks

#### Slide 10 -Tekstslide

What is sequencing?
A
A set of instructions
B
A set of instructions in order.
C
A program created by code.
D
The result of our program when run.

#### Slide 11 -Quizvraag

What is a loop?
A
A set of instructions to complete a task.
B
A set of instructions in order.
C
A repeated section of code
D
The end result of your program.

#### Slide 12 -Quizvraag

What is programming?
A
The order in which we write our code.
B
The programs we use.
C
A set of instructions to complete a task.
D
The result of our program when run.