Why do this
problem?
This problem is suitable for learners who need a challenge
when working with square numbers.
Key questions
Have you made a list of squares of the relevant numbers?
Have you remembered that $1$ is a square number?
What is the square root of that number?
Possible extension
Learners who need even more of a
challenge could try
Cycling squares .
Possible support
Suggest making a list of squares of the
relevant numbers, remembering that $1$ is a square number.