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Prerequisites
- G7a – Coordinates
- A9a – Plotting straight-line graphs of the form y = mx + c
- A9b – Identifying parallel and perpendicular lines
- A9c – Finding the equation of a line through two given points or through one point with a given gradient
- N2f – Applying the four operations to fractions
- G20a – Pythagoras’ theorem
- S4b – Mean
A starting point
An activity to help familiarise students with sketches i.e. diagrams without gridlines.
Working with sketches worksheet
Finding the coordinates of a mid-point, finding the length of a line segment, and finding the shortest distance from a point to a line
Click slide to play video
Teacher resources
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- Slides in PPTX (with click-to-reveal answers)
- Slides in PDF (one slide per page, suitable for importing into IWB software)
Links to past exam questions
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Interactive GeoGebra activity: Midpoints
Interactive GeoGebra activity: Area of a triangle and coordinate geometry
In this activity, at least one side of the triangle will be parallel to one of the axes.
Difficulty levels 3 and 4 in this applet were inspired by this tweet posted by Dan Draper.
In the real world
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