For some teachers, the concept of angles can be very difficult to impart especially at the elementary level. There is a difficulty in relating angular values and concrete objects. For instance while it is not difficult to represent 90 degrees using concrete objects, it could be very daunting doing same for 135 degrees or 207 degrees.The topic ‘Angles’ in mathematics is just an aspect of plane geometry and in this article we’ll talk about 5 ways teachers can help students understand the concept of angles.
USE VISUAL AIDS AND CONCRETE OBJECTS
In lesson
delivery, it is very important to introduce visual representations such as
charts and diagrams very early to assist students to visualize angles and their
properties. This can enhance their understanding and make the concept more
tangible.
Provide concrete
objects like cut-out shapes, straws or straight edges to form different shapes
and angles. Students can be given the opportunity to manipulate these concrete
objects to form angles on their own.
In doing so
teachers must remember learners are very different individually. While some
learners may take some time to understand the concept others may be very quick
in understanding.
Provide
opportunities for more practice. Leaners should be given the opportunity to
practice the act of measuring angles with their protractors. They could start
with measuring simple and common angles to more intricate ones. This could be
achieved by giving learners more homework and teachers must ensure learners get
the assistance they need.
The teacher
must encourage collaborative learning. This can be done through group work or
peer tutoring to provide a deeper understanding of angles. This way students
can teach each other and compare their work. Learners may feel more comfortable
learning from their friends than the teacher in some cases.
ALLOW STUDENTS TO CONSTRUCT ANGLES
Teach and
assist students to construct angles using their compasses. Allowing students to
construct angles gives them the opportunity to identify the properties of
angles. The construction processes can be broken down into simple steps with
varying levels of complexity. This gives students the confidence to progress to
one step after completing another.
Assign tasks
to students. This would give the teacher the needed feedback to identify where
students lack understanding. The teacher can ask learners to measure or
construct an angle. The outcome of that assignment would give the teacher the
needed feedback to adjust or adopt another technique.
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