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A group of $10$ students are on a field trip when their bus breaks down $40$ miles away from the school.
A teacher takes $5$ of them back to school in her car, travelling at an average speed of $40$ miles per hour.
The other $5$ students start walking towards school at a steady $4$ miles per hour.
The teacher drops the $5$ at school, then immediately turns around and comes back for the others, again travelling at a steady speed of $40$ miles per hour.
How far have the students walked by the time the car reaches them?
Investigate how this pattern of squares continues. You could measure lengths, areas and angles.
How many centimetres of rope will I need to make another mat just like the one I have here?
A lady has a steel rod and a wooden pole and she knows the length of each. How can she measure out an 8 unit piece of pole?