Preschool and infant-school children are often claimed to learn about
number from their experiences of counting but several studies show the
y neither count to answer questions about number nor rely on informati
on from counting if it conflicts with other strategies. Explanations o
f children's failure to count arc reviewed and two studies comparing m
ethods of encouraging children to count are reported. Yemeni children
aged between 5 and 8 years and English children aged between 3 and 5 y
ears were all encouraged to count by methods which emphasized that cou
nting yielded the right relative number judgement and that it yielded
the same judgement as matching. The older children also showed a very
marked improvement in their judgements. These results suggest that chi
ldren do not count either because they do not know how much better cou
nting is than other strategies for comparing number or because they ar
e not confident that they can use counting to derive accurate judgemen
ts.