for loops and range: a known number of times
Computer Studies · Grade 10 · about 40 minutes
for walks through a collection. range(1, 6) is 1 to 5. Use for when you know the count or have a list of names.
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- 9 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Selection: making decisions
- Iteration: loops, break and continue
- Sequence: steps in order
- How Boolean expressions are used in control
- Compound Boolean expressions in real rules
- The simple if: one optional path
- if-else: two paths, one of them always runs
- if-elif-else: several bands, first True wins
- Nested if: a decision inside a decision
- Flowcharts for selection
- while loops: repeat until something happens
- for loops and range: a known number of times
- Nested loops: a loop inside a loop
- break: leave the loop immediately
- continue: skip this round, not the loop
- Choosing the right control structure
- Combining sequence, selection and iteration