Children who start using a computer for schoolwork often save files wherever happens to be convenient at the time, without giving much thought to where they will need to find them again later. This usually works fine at first, but becomes a real problem once several pieces of work start piling up.
A good starting point is helping the child set up one clear folder just for schoolwork, separate from games, pictures or anything else on the computer. Having a single, obvious place to look makes it far easier for a child to remember where something was saved, without needing an adult's help every time.
Simple names make a big difference
Encouraging a child to give each piece of work a short, clear name, rather than accepting whatever name the computer suggests automatically, makes a noticeable difference later on. A name that mentions the subject or the task helps the child recognise the file at a glance, weeks or months afterwards.
It also helps to build a small routine around saving, such as checking together at the end of each session that the day's work has actually been saved in the right place. This short check takes only a moment but prevents the frustrating discovery, much later, that something important was never saved at all.
Over time, children who build this habit early tend to manage their own files far more confidently than those who never learn it. What starts as a small daily routine gradually becomes a genuinely useful skill that continues to serve them well beyond school.
Involving the child directly in choosing folder names and deciding where things belong, rather than simply doing it for them, tends to make the habit stick far better. A system they helped design themselves is one they are far more likely to actually remember and keep using.