Decisions with if
Use if, elif and else so a program makes choices.
Planned. This module is part of the plan and is not written yet.
Why it matters
The Lantern's free public Wi-Fi gives each device a daily time allowance. A program decides with if whether a device still has time left.
Draft outline · in review- For
- Level 8–10 · JSS 2 to SSS 1
- Inside
- 5 lessons and a test · about 75 minutes
- Topic
- Python basics · core, 2 of 4
Inside the module.
5 lessons in order, about 75 minutes in all, then a short test. Learners go at their own pace; the minutes are a guide, not a timetable.
Draft outline · in review
Lesson 1: if, elif and else
How Python chooses one branch, and why indentation matters.
Explain15 min, from minute 0
Lesson 2: Grading a score
Turn a test score into a grade with if, elif and else.
Worked example15 min, from minute 15
Lesson 3: and, or, not
Combine conditions: a learner may enter if it is a school day and they have registered.
Practice20 min, from minute 30
Lesson 4: Wi-Fi time checker
Tell a user how many minutes they have left, or that their time is up.
Project20 min, from minute 50
Lesson 5: Check your skills
Predict which branch runs.
Review5 min, from minute 70
End-of-module test
Write programs that make choices with if, elif and else, using combined conditions where needed.
Mastered at 85% or more. Retake it until you pass; nothing is lost, and each try gives feedback.
Already know it? A Challenge Test (planned) clears the whole module: 90% overall, no objective below 75%.
Last stageafter about 75 min
Practicalities
Draft outline · in reviewBuilt to run offline
Planned to run on the Lantern's own computer, with no internet needed.
Languages
Planned first in English; every module aims to reach all of the Lantern's languages.
Try a question.
One question from the module, as a learner would meet it. Have a go, then open the worked solution a step at a time.
Draft outline · in review
What does this print? minutes = 45 if minutes >= 60: print("Time is up") elif minutes >= 40: print("Nearly done") else: print("Keep going")
Work it out on paper first, then show the answer and mark it yourself.
Particulars
Where it sits
What a learner can do after it
- Write if, elif and else statements.
- Combine conditions with and, or and not.
Needs first
We suggest first (never a lock)
Level
Level 8–10 · JSS 2 to SSS 1
Level mappings are approximate. A qualified teacher or lecturer in each country must check them before they appear in the app.
Difficulty for its level
2 of 4 · Core
Time
About 75 minutes
Alignments
- Aligned to PCEPpartial · in reviewPCEP: conditional statements (descriptive ref)
Alignment in review until a qualified teacher or lecturer checks it. No exam body, university or vendor endorses us; learners still sit the real exam.
Challenge Test
Planned: a Challenge Test to prove you know it and skip it. Pass at 90% overall, with no objective below 75%.
University courses it previews
Computer Science, Software Engineering
On these pathways
The route here.
Everything this module builds on, drawn as a route from its foundations. Solid lanes must be mastered first, or cleared by a Challenge Test; dashed lanes are suggestions that never lock anything.
- CO-BLK-SEQ-01Instructions in orderCoding · Primary 1 to Primary 4 (Level 1–4) · Planned
- CO-BLK-LOP-01Repeat blocksCoding · Primary 3 to Primary 5 (Level 3–5) · Sample lesson in the demo Needs Instructions in order (required).Try the sample lesson: Repeat blocks
- DS-CMP-TYP-01The home rowDigital skills · Primary 3 to Primary 6 (Level 3–6) · Planned · recommended
- CO-BLK-CND-01If this, then thatCoding · Primary 3 to Primary 6 (Level 3–6) · Planned · recommended
- CO-BLK-LOP-02Patterns with loopsCoding · Primary 4 to Primary 6 (Level 4–6) · Planned Needs Repeat blocks (required).
- MA-ARI-ORD-01Order of operationsMaths · Primary 5 to Primary 6 (Level 5–6) · Planned · recommended
- CO-PRG-PYB-01Your first Python programCoding · JSS 1 to JSS 3 (BECE) (Level 7–9) · Planned Needs Patterns with loops (required), The home row (recommended).
- CO-PRG-PYB-02VariablesCoding · JSS 1 to JSS 3 (BECE) (Level 7–9) · Sample lesson in the demo Needs Your first Python program (required).Try the sample lesson: Variables
- CO-PRG-PYB-03Numbers and calculationsCoding · JSS 1 to JSS 3 (BECE) (Level 7–9) · Planned Needs Variables (required), Order of operations (recommended).
- CO-PRG-PYB-05Decisions with ifCoding · JSS 2 to SSS 1 (Level 8–10) · Planned · the destination Needs Numbers and calculations (required), If this, then that (recommended).
Help light the room where this is learned.
Every route on this map starts in a classroom with 24 stations, a tutor that works offline and a facilitator upstairs. Four are planned and waiting for light.