Rational
This will give the children another method to discover the formula for volume.
Lesson Layout
5 minutes - introduction to activity - they will draw a slip of paper from a bucket with a number on it. They will get that number of cubes and make a rectangular pyramid.
15 minutes - children will create the cubes
30 minutes - record results - prompt - how did you choose those dimensions?
Material
Centicubes or similar
Smartboard, overhead, or chart paper to record results
slips with the following numbers - 8,9,12,16,18,24,27,36 - several copies of each, vary for class size.
Assessment
Anecdotal - has the child discovered a means beyond trial and error