Use geometric sequences to model and analyse practical situations involving geometric growth and decay (use of logarithms not required), e.g. modelling the growth of a bacterial population that doubles in size each hour, calculating the value of an item using the diminishing-value method of depreciation.

gm-u3-t4-s2-d3

Request an applet

Describe what students should see or notice. That's the cue to build — requests are what get built next.