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IGCSE 0625 · 1.1 · Extended · Lesson bundle

Scalars and vectors: a direction, or just a number?

The first Extended lesson of the course, made lesson-ready: define a scalar and a vector, and classify quantities by asking one question of each, does it need a direction? Plan, worksheet with answers, slides, and a Quiz-Quiz-Trade activity with a full facilitation guide, built around the arrow board and the site simulation The Round Trip Trap.

Syllabus
0625, 1.1 (S)
Level
Extended
Duration
45 minutes
Activity
Quiz-Quiz-Trade
Core visual
The arrow board
Present the slides Get the materials View the student topic page
View or download

Every part, two ways

Each part of the bundle opens right here on the site, projectable in any browser, and downloads as an editable file, never a locked PDF. Adapt them to your set, your timing and your school's calendar.

View on site · or Word .docx

Lesson plan

The 45-minute plan, with the arrow board, the simulation hook, examiner traps and a timing and contingency note.

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Worksheet and answers

Six original Extended questions, with diagrams to read, and a full worked answer key with marking notes.

Present on site · or PowerPoint .pptx

Slides

Your actual slides, presented right in the browser, with the live simulation linked beneath; the download is fully editable.

View on site · or Word .docx

21st century skills activity

Quiz-Quiz-Trade with twelve quantity cards, plus a scalar and vector sort, with a full facilitation guide so both structures run faithfully.

The matching topic page and simulation

Send learners to the lesson online

This bundle pairs with the student topic page Scalars and vectors, and the hook runs on the site simulation The Round Trip Trap: as a journey goes out and back, distance and speed keep growing while displacement and velocity carry a direction and return to zero. That contrast is the whole lesson.

Open the topic page   Open the simulation

How it is built

One question, asked of every quantity

Classifying is quick to say but easy to get wrong, so the lesson gives many short, low-stakes attempts. After the simulation makes the case for direction, the arrow board fixes the two definitions, and Quiz-Quiz-Trade sends learners around the room giving a reason for each card, not just a label.

A group sort then asks them to defend eight placements, and random call keeps every learner accountable. The activity ships with a full facilitation guide for both structures, and the single test runs through all of it: does this quantity need a direction?

Original work by the TheLucidSTEM team. Questions are written in the style of the papers; no past paper question is reproduced. Supplied in editable formats so you can adapt them freely.
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