rubik cuboids and cubes

a ppt is here

(more shapes on the ppt)

surface area for a given volume

a powerpoint is here

easy cube buildings

a ppt is here

harder cube buildings

assume that the solids shown have no gaps at the back
a ppt is here

how many cubes?

how many bricks?
(there aren't any gaps at the back)

blocks

a ppt is here

(41, by subtracting the 19 that aren't red away from 60)