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IGCSE 0625 · 1.2 · Extended · Lesson bundle

Gradient and area

The Extended graph lesson of motion, made lesson-ready: on a speed-time graph the gradient is the acceleration and the area under the line is the distance travelled. Plan, worksheet with answers, slides, and a Pairs Check and Gallery Walk activity with a full facilitation guide, built around the site simulations Distance from a Speed-Time Graph and Acceleration from a Velocity-Time Line.

Syllabus
0625, 1.2
Level
Extended
Duration
45 minutes
Activity
Pairs Check + Gallery Walk
Core visual
The twin-graph poster
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 two methods, the simulation hook, examiner traps and a timing and contingency note.

View on site · or Word .docx

Worksheet and answers

Six original Extended questions with a full worked answer key and marking notes.

Present on site · or PowerPoint .pptx

Slides

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

View on site · or Word .docx

21st century skills activity

A problem set run as Pairs Check, plus a Gallery Walk, with answers and 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 pages Motion graphs and Acceleration, and the hook runs on the site simulations Distance from a Speed-Time Graph (area) and Acceleration from a Velocity-Time Line (gradient).

Open the topic page   Open the simulation

How it is built

Two readings from one line

The simulations split the speed-time graph into its two Extended readings: an area that matches a true distance, and a line whose slope is the acceleration. The lesson then makes both methods routine, the large triangle for the gradient, and the split into a triangle and a rectangle for the area.

Pairs Check has learners solve, coach and check in turn, and the Gallery Walk exposes them to different correct layouts and common slips. The activity ships with a full facilitation guide for both structures, and the traps it pre-empts are the classic ones: reading the area as a speed, and forgetting a deceleration is negative.

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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