Jennifer Chang-Wathall is an independent consultant, author, faculty chair of mathematics at Island School and honorary faculty adviser and part time instructor for the University of Hong Kong.
at Jakarta International School. David’s work on math differentiation draws on seventeen years of teaching experience in schools spanning the socioeconomic spectrum.
Fran was a maths teacher for 13 years before she joined the NRICH team 3 years ago. She has worked in middle, upper, lower, secondary and primary schools and is passionate about problem solving and sharing her enthusiasm for mathematics in general.