Measure the length of objects using building blocks as a non-standard unit. The measuring units have to be laid correctly between the endpoints. Then, enter the measurement
A. Count to measure lengths of objects in non-standard units
B. Measure lengths of objects from endpoint to endpoint with no gaps or overlaps
D. Compare lengths measured in different non-standard units
E. Count to measure lengths of objects in centimeters
F. Measure lengths of objects aligned to a centimeter ruler
G. Align objects to a centimeter ruler to measure length
H. Draw a line segment of a given length
I. Measure side lengths of 2-D objects using a centimeter ruler