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CodeCraft Juniors
Python Programming · Day 30 of 40

Project — Multi-tool Utility Toolkit

Combine functions into a menu-driven toolkit containing several small utilities.

60 minutesLive + guided practiceBeginner friendly
01 · LEARNING TARGETS

What students should understand today

  • Menu FunctionsUnderstand what it means, where it is used and practise it in a small example.
  • Reusable UtilitiesUnderstand what it means, where it is used and practise it in a small example.
  • Return ValuesUnderstand what it means, where it is used and practise it in a small example.
  • Testing Multiple PathsUnderstand what it means, where it is used and practise it in a small example.
02 · TEACHING NOTES

Core lesson

Start with the idea, not the syntax. Combine functions into a menu-driven toolkit containing several small utilities. The instructor should connect the topic to something students already understand, then introduce the exact terms they need for today.

Build in small steps. The teacher first models one example, then students rebuild the same idea with different values so they learn the logic rather than memorising one answer. Pause after each important change and ask students to predict what will happen before running or refreshing the result.

Develop good habits. Students should type the code themselves, run it frequently and read any error message before changing the code. Keep naming, indentation/structure and output clear enough that another student could follow the work.

03 · LIVE BUILD

A toolkit with calculator, temperature converter and text counter options.

1

Plan the result first: decide what the user/student should see or be able to do at the end.

2

Build the smallest working version using today’s main concepts and test it immediately.

3

Add one improvement at a time and ask students to explain why each line/element is needed.

4

Test with at least two different inputs, screen sizes or scenarios and fix one issue together.

04 · STUDENT CHALLENGE

Independent practice

Add one original tool and keep each option in its own function.

Teacher rule: give hints in steps, but avoid typing the complete answer for the student. The goal is to make them think, try and correct.
05 · END-OF-DAY CHECK

Before moving to the next day

  • I can explain menu functions in simple words.
  • I can explain reusable utilities in simple words.
  • I can explain return values in simple words.
  • I can complete today’s mini task with only small hints.
Optional 10–15 minute home practice

Rebuild today’s example once without looking at the finished version. Change the names, values, text or design so the result is clearly your own.

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