The language of
mathematics can be confusing for both individuals who have
learning differences and for those who do not.If a person without a learning difference does not use the
terminology of a subject of study, it can fade from the memory
over time.For the
person with a learning difference, it may be difficult to learn
the terminology in the first place.This is true for the words and concepts of complementary
and supplementary angles.
The Mnemonic:
This week’s mnemonic clues demonstrates that
there is no one right way to develop a mnemonic clue.Different clues will work for different individuals.One clue for remembering the difference between complementary
and supplementary angles is to use the alphabet.The letter C comes before the letter S.This concept is linked to the idea that on a circle the 90
degree complementary angle comes before the 180
degree supplementary angle.
Another way to remember these terms and
concepts comes from Lynn Mikuliak, an adult education math teacher
at Congresso in Philadelphia.Lynn teaches her students that complementary
angles add up to 90 degrees (right angle) and “It is right
to give a compliment.”Supplementary angles add up to 180 degrees
(straight angle) and “People take a calcium supplement
to keep their bones straight.”
A number of
teachers and students have asked to have the Mnemonic Clue of the Week
sent to them each week. If you would like to receive this service, send
your e-mail address to
rcooper-ldr@comcast.net
