What is a conditional in coding?

An instruction that runs only when a condition is met, usually written as if-then or if-then-else. It is what allows a program to respond differently to different situations.

How do I explain conditionals to a child?

Use everyday rules they already follow, such as if it is raining, take a coat. Writing familiar rules in if-then form makes the structure visible in something they already understand.

What is an else statement?

The alternative branch: what happens when the condition is not true. Including it means the program has a defined action in both cases rather than only one.

Conditionals | Coding & Logic

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🔀Conditionals

If/then logic and decision making

🔀

Conditionals: If/Then Logic

Key Points

A CONDITIONAL is an 'IF this is true, THEN do that' rule — the foundation of decision-making in code
True or False questions are called BOOLEAN — computers see everything as true or false (1 or 0)
IF/ELSE handles both cases: IF raining → take umbrella, ELSE → wear sunglasses
You can combine conditions: IF it's raining AND cold THEN wear coat and take umbrella

📘 Examples

❓ IF today is Saturday, THEN no school. What happens if today is Saturday?

✅ No school! The condition 'today is Saturday' is TRUE, so the action ('no school') happens!

❓ IF x > 5 THEN print 'big'. What prints when x = 3?

✅ Nothing! 3 is NOT greater than 5, so the condition is FALSE and nothing prints!

❓ Add an ELSE: IF hungry, eat a snack. ELSE ___

✅ ELSE: don't eat! The ELSE clause handles what happens when the condition is false!

🌟 Fun Fact!

Every 'yes or no' decision inside a computer is made by a tiny switch called a TRANSISTOR. Modern computer chips pack over 50 BILLION transistors into a chip the size of your fingernail! ⚡

A conditional is a decision: if something is true, do this, otherwise do that. It is what allows a program to behave differently depending on circumstances rather than always doing the same thing.

Children use conditionals constantly without naming them. If it is raining, take a coat. Making that structure explicit is most of the teaching.

Ideas to build

That a condition is something that is either true or false, with no in-between.
That if-then-else covers both outcomes, so the program always knows what to do.
That conditions can combine with and and or, which changes when they apply.
That the order of conditions matters when more than one could be true.

Things to do at home

Play a game where a rule applies conditionally, such as clapping only on even numbers.
Write household rules as if-then statements and look for cases they do not cover.
Sort objects using a rule with and or or, such as red and round.
Find the gap in a rule deliberately, which is how children learn to think about edge cases.

Frequently asked questions

What is a conditional in coding?: An instruction that runs only when a condition is met, usually written as if-then or if-then-else. It is what allows a program to respond differently to different situations.
How do I explain conditionals to a child?: Use everyday rules they already follow, such as if it is raining, take a coat. Writing familiar rules in if-then form makes the structure visible in something they already understand.
What is an else statement?: The alternative branch: what happens when the condition is not true. Including it means the program has a defined action in both cases rather than only one.