https://www.bbc.co.uk/bitesize/topics/z28jmp3/articles/zcr3tv4
Speed is a measure of how fast something or somebody is moving. The units of speed are linked to the units of the distance and time being used. A formula triangle is a quick way to calculate the speed, distance or time.

How to work out speed, time and distance
https://www.bbc.co.uk/bitesize/topics/zj48q6f/articles/z8k83k7
GLT Curriculum
free lessons
https://www.youtube.com/channel/UCfrjZZrO08ud5b7p4Nf17pQ/videos