See it in a situation.
See three counters at a glance, then recognise a group of five as three and two.
Related terms.
Sources and further reading
These plain-language explanations and fictional examples were written for this website. They are reading aids, not quotations, diagnostic definitions, legal advice or methods claimed as invented or endorsed by Dr Sako. Sources provide the professional context. English only; no unreviewed Sepedi translations are supplied.