Bar Model Builder
V0.6 • Type directly into every boxBar widthsSize to values becomes available when the required bars are known.
Equal boxes—not to scale
Use a bar model to show how quantities in a problem are related. Choose part-whole, comparison or equal groups, then label the known and unknown values. For example, show a whole of 12 with one part of 5 and ask what is missing. Equal-box mode is not drawn to scale.