Block based programming lesson 4 (Mr Evlat)

• Computing
• Lower Secondary (Key Stage 3)

Write down your answer.
Which is the correct code to draw an Octagon
A or B?

Extension

https://compute-it.toxicode.fr/

Do Now answer

What is sequencing?

1. A set of instructions.
2. A set of instructions in order.
3. A program created by code.
4. The result of our program when run.

Quiz should take 3-4 mins, allow time on later questions for students to read through the code options to figure out which option is correct. 

What is a loop?

1. A set of instructions to complete a task.
2. A set of instructions in order.
3. A repeated section of code.
4. The end result of your program.

What is a conditional/If statement?

1. A decision in a program.
2. A section of the program that loops.
3. A set of instructions in order.
4. An error in the code.

Lesson 4: Block based programming

Understanding the fundamentals of programming

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Lesson objectives 

Conquer: Apply you programming skills to create and solve problems in Minecraft.

Aspire: Use conditionals to make your programs smarter.

 

 

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

Previously we have made use of three very important concepts in programming.

1. Sequencing: Creating a set of instructions in order.
   
2. Loops: Make a set of instructions repeat.
   
3. If/Conditional statements: A decision point in a program.

Recap

The repeat statement loops every instruction inside its mouth by 7 times

The if/conditional statement checks if the bee has arrived at a flower

The do section of our if/conditional statement is where we choose our instruction if the answer is true

The else section of our if/conditional statement is where we choose our instruction if the answer is false

Match the programming terms to the code!

Loop

If statement

True output

False output

Practice your skills

We are going to practice the skills covered over the previous few weeks.

Complete levels 1-14

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Extension task:

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Why do we need if statements in programming?

Programs like Minecraft need to use If statements so the program can make decisions based on what the user does

For example:

• If the player walks into lava, then the game takes damage away.

• If it becomes night, then mobs start to spawn.

• If the player breaks a block, then the block drops an item.

• If the hunger bar is low, then the player can’t sprint.

Without If statements, the game wouldn’t react to anything - it would just run in a straight sequence.

If statements allow the game world to change, respond, and behave differently depending on conditions.