About This Lesson
One of a set of three TESiboard Marble activities based on Ratio and Proportion. This activity, nominally the first in the set, requires the user to pack the box to the correct ratio by dragging marbles to and from the conveyor belt. The expert level requires the ratio to be applied up to larger numbers of marbles. The complete TESiboard set includes Marble Packing, Marble Checking and Marble Labelling which links ratio and proportion to fractions.
