Mathematics Department
Calculate the degrees
This is an activity for 12 and 13 year old students. The activity is designed for a 55
minute session.
Concepts under development:
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Proportionality.
Division.
Natural numbers.
Basic Geometry.
� Applying Maths to solve everyday
problems.
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Social abilities.
The hands ofthe clock hanging at the Principal’s office of the public high school of
Ḷḷuarcaare set at the following times:
a) 2:24 h
b) 5:43 h
c) 13:55 h
In groups of three or four students calculate the angle between the two hands of
the clock.
In case the students cannot find the solution by themselves and to keep them focused on
the activity the following hints can be provided (one by one):
(1) Draw the clock in the whiteboard to make
sure they understand the problem.
(2) A circle has 360 degrees.
(3) The important point is not the time, but the
minutes.
(4) You must relate 360 degrees with the
minutes in an hour.