%0 Journal Article
%A Hlaleleni, Wandile
%T Capitalising on mathematical moments
%D 2011
%J Learning and Teaching Mathematics,
%V 2011
%N 10
%P 15
%@ 1990-6811
%I Association for Mathematics Education of South Africa (AMESA),
%X Imagine that Sange is a learner in your Grade 9 Mathematics class. One day Sange points out that he has just turned 15 and as a result is a quarter of his grandfather's age. How could you as a teacher capitalise on this simple observation and explore its potential richness? Perhaps a starting point would be to set up a table of ages in order to compare Sange's age with his grandfather's at different times in both the past and future. A partial comparative table is shown below which includes simplified ratios of Sange's age to his grandfather's age. The shaded column shows their present ages.
%G English,
%U https://journals.co.za/content/amesal/2011/10/EJC20677