Khan Academy: free, and the maths spine for most worldschooling families

What Khan Academy Does

• Free, permanently: a non-profit with no paid tier gating the core content, which is close to unique at this scale.
• Broad coverage: maths from early counting to calculus, plus science, humanities, economics and standardised test prep.
• Mastery-based progression: children advance when they have demonstrated the skill rather than when the calendar says so, which is exactly right for an interrupted schedule.
• Parent dashboards: progress tracking so you can see where a child is stuck without sitting beside them.
• Works anywhere: light enough for patchy connections and older devices.

Why It Makes Sense for Nomads

It is not a nomad product, and it is on this list anyway because it is what nomad families actually use. Ask in any worldschooling group how the maths is handled and this is the answer more often than every paid option combined.

The reason is the combination of free and mastery-based. Travelling families have irregular schedules, and a system that lets a child do nothing for two weeks during a move and then catch up in concentrated bursts fits that far better than a course that expects daily progress. Nothing is lost by pausing, and nothing is wasted if you stop.

Being free also makes it the sensible first experiment. Before committing to an accredited school or a paid curriculum, a month here tells you a lot about whether your child can work independently, which is the variable that determines which of the other options will work.

Pricing

Free. It is a non-profit funded by donations, with no paywalled core content.

The default maths and science backbone, at no cost, used by more worldschooling families than anything else.