Numbers and calculations
Calculate with Python, and see the order of operations at work in code.
Planned. This module is part of the plan and is not written yet.
Why it matters
Sharing 17 mangoes among 5 friends: how many does each get? Python's // works it out, and a market seller's sums are just as quick.
Draft outline · in review- For
- Level 7–9 · JSS 1 to JSS 3 (BECE)
- Inside
- 4 lessons and a test · about 60 minutes
- Topic
- Python basics · foundation, 1 of 4
Inside the module.
4 lessons in order, about 60 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: Python as a calculator
+, -, * and / in Python, and what each gives back.
Explain10 min, from minute 0
Lesson 2: / versus //
Why 17 / 5 is 3.4 but 17 // 5 is 3, and when each is useful.
Worked example15 min, from minute 10
Lesson 3: Order of operations
Predict results where * and / come before + and -, and use brackets to change the order.
Practice20 min, from minute 25
Lesson 4: Market maths
Work out totals and shares for a market stall.
Practice15 min, from minute 45
End-of-module test
Calculate with Python's arithmetic operators and predict results that depend on the order of operations.
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 60 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? print(2 + 3 * 4)
Particulars
Where it sits
What a learner can do after it
- Calculate with +, −, *, / and //.
- Predict results that depend on the order of operations.
Level
Level 7–9 · JSS 1 to JSS 3 (BECE)
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
1 of 4 · Foundation
Time
About 60 minutes
Alignments
- Aligned to PCEPpartial · in reviewPCEP: operators (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-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 · the destination Needs Variables (required), Order of operations (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.