Numbers, both very large and very small, are crucially important for
understanding the modern world. This paper assesses trials of a mathematics and
physics module called Powers of the Universe in which arithmetic with extreme
numbers (large and small) is developed through early learning of the powers of
ten notation. We trialled a 6-hour progression of lessons based on activities
and group learning with students aged 7-13 years. We measured students' ability
to estimate, compare, and calculate extreme numbers using pre and post-tests to
evaluate the program. Results demonstrated students' strong enthusiasm and
positive learning outcomes in areas normally assumed to be beyond the
capability of students in this age group. We discuss the age dependence of some
results and suggest an optimum strategy for enhancing primary school
mathematics. The module has been delivered, as part of a broader five-module
program called Maths for Einstein's Universe, that aims to reduce maths anxiety
through programs with direct relevance to the modern world and reduced emphasis
on exactness.Comment: 30 pages, 10 figure