Build a tower with cubes to make a tower that is the same height as another tower. Then take cubes away from a tower until it is the same height as another tower
A. Determine which of two objects is taller
B. Determine which of two objects is longer or shorter
C. Identify two objects that are about the same height
D. Identify two objects that are about the same length
E. Identify an object that is about the same length or height as a given object
F. Add cars or take them away to make a train the same length as a given train