1 Sequence: Making Toast
Every algorithm needs steps in the right order. Tap a shape below, then tap the slot where it belongs.
Think about what you’d actually do, in order: put the bread in first, and you can’t spread butter before the toast pops up!
2 Selection: Is It Raining?
Flowcharts can also make decisions. A decision shape always has two paths out of it: Yes and No.
There’s one extra shape in the bank that doesn’t belong anywhere — ignore it. Both YES and NO lead to the same last step before End.
3 Iteration: Password Check
Sometimes a NO answer doesn’t lead to the end — it leads back to an earlier question, so it can be asked again. This is called iteration, or a loop.
Only YES should reach the End — getting the password wrong should send you back to try again, not finish the program.
4 Design your own: Number Checker
Question: Design a flowchart that asks the user to enter a number. If the number is bigger than 10, show “Big number!” If it isn’t, show “Small number!”
Tap a blank shape below to add it to your flowchart, tap the text to type your own words, and use the arrows to reorder.
You’ll need: Start → an input step → a decision → two different outputs (one for YES, one for NO) → End.
5 Design your own: Quiz Question
Question: Design a flowchart for a single quiz question. Ask the user to type an answer. If it’s correct, show “Correct!” and end. If it’s wrong, tell them and let them try again — keep asking until they get it right.
Build it the same way: tap a shape to add it, tap the text to edit it.
This one needs a loop, like Task 3. Add a note in a step saying which question it should go back to.
What you learned in this lesson
- Sequence: steps that happen one after another in order
- Selection: a decision shape with two paths, YES and NO
- Iteration: a loop, where a NO path can lead back to an earlier question instead of the end
- Every flowchart starts with Start and finishes with End