Geometry (position & direction): Platypus Patrol

2 - The Problem

The Problem

Plato, the duck-billed platypus, was searching for tasty crayfish on a riverbed. The grid opposite shows Plato’s position on the riverbed and a crayfish that he was hoping to catch. It also shows the location of 10 large stones.

Using your knowledge of coordinates, can you describe a route that will enable Plato to catch the crayfish without bumping into any stones? 

Using your knowledge of coordinates, can you describe the shortest route that will enable Plato to catch the crayfish without bumping into any stones?

Did you know?

The platypus spends around 12 hours each day underwater looking for food.

Visualising the Problem and Getting Started

Reem said, “The location of the crayfish can be described by the coordinates – (10, 5).”

Do you agree with Reem? How do you know?