Arithmetic Grade One
Lesson One hundred twenty-three: Centimeters
Length in Centimeters
LENGTH: 4 centimeters
LENGTH: 11 centimeters
NOTE: First of all, in the applet the length of the intervals of the
measuring bar may vary depending on your screen settings. In any case the
intervals will not be exactly a centimeter. So, it is important to show the
student an actual ruler with centimeters and have the student practice
measuring with it. Draw lines for the student to measure and find objects
for the student to measure. The student may enjoy comparing the length of
fingers, for instance. The student does not write centimeter or cm following
the answer to the problems in the following applet.
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