Turn speed and time information into accurate distance–time graphs with this editable 108-slide Year 9 maths PowerPoint. Pupils progress from simple outward journeys to stops, changing speeds and ...

• Direct Instruction (I Do) — distance–time graph features explained with annotated examples; gradient = speed; horizontal line = stationary; steeper gradient = greater speed; how to calculate speed ...

A horizontal line means the object is moving at a constant speed. The gradient of the line = the rate of change of speed. The steeper the line, the greater the increase in speed. The area under the ...

A distance-time graph shows how the distance travelled by an object changes over time and can be used to calculate the speed of the object. A sloping line on a distance-time graph shows that the ...