Conditions (If Else)

👩‍🏫 Teacher’s Guide

Objective
Students will explain conditions (if/else) as decision-making in programs and predict outcomes of simple if/else rules.

Teaching Notes

Use real-life choices: if it rains, take an umbrella; else, wear sunglasses.
Explain that conditions check if something is true or false.
Model with a simple game: if score ≥ 10, win; else, keep playing.
Keep symbols minimal; focus on meaning and logic.

🧒 Student Worksheet

Concept and Helping Material

Conditions help programs make decisions. An if statement checks a rule. If the rule is true, the program does one thing. Else, it does something different.

Computer Vocabulary and Definition

— A rule that can be true or false.
— A command that checks a condition.
— A command for what happens when the condition is false.
— A condition that is correct.
— A condition that is not correct.

Computer QA

What is a condition?
What does if do?
What does else do?
What does true mean?
What does false mean?
True or False: If/else helps programs decide.
If it is raining, what might a program tell you to do?
If you press the space key, what could happen in a game?
What happens when an if condition is true?
What happens when an if condition is false?
Can conditions use booleans?
Is ‘score is 10’ a condition?
True or False: Else runs when the condition is true.
Why are conditions useful?
What is one example of a condition in a game?
Can a program have more than one condition?
What is a simple condition using a button?
If the light is off, what could else do?
True or False: Conditions check rules.
What is one everyday if/else decision?

Computer Prtactices

If/else cards: Match conditions to actions (if hungry → eat, else → drink water).
Predict the output: If score ≥ 5 show ‘Great!’ else show ‘Keep trying!’
Create 3 if/else rules for a simple pet game.
Role-play: One student is the ‘if checker’ and chooses actions based on true/false.

Reflection

What does if/else help a program do?
Give one if/else example from real life.