 Reading a Protractor or a Ruler,
a selection of answers from the Dr. Math archives.
 Using a Protractor:
 Measuring Angles with a Protractor
 I want to know how to measure acute, reflex and obtuse angles with a protractor.
 How do I measure angles using a protractor?
 How do I measure angles using a protractor?
 Reading a Ruler:
 Reading a Ruler
 I need to read a ruler, and I can't. Can you help me?
 Reading a Ruler II
 What do the little lines on a ruler stand for?
 Finding Fractions on a Ruler
 How can I find measurements like 7/8" or 5/16" on a ruler?
 Metric and Standard Rulers
 In the United States we only use a customary (standard) ruler,
and in other parts of the world they use the metric side. Why do
we just use the standard side?
 Teaching the Metric System
 How can I teach my second grader about the metric system? I have
no idea how to read a metric ruler or how to convert inches into the
metric system or vice versa.
