Road

Preface
We come across various concepts of geometry in our daily life. There are objects and actions that
have direct and indirect connection with geometry. These objects or actions have geometrical
properties, functions and applications. We would like to invite you to find geometry and its
application from our daily life and link them with classroom teaching of geometry.
Geometry in our houses inside rooms, kitchen, roof and artifacts such as doko, nanglo, plates,
cooking pots, ghum, spade, halo (plough) and so many others depict rich sources of geometry
and its application in our daily life to classroom. From this discussion you will start a practice of
bridging the informal geometrical practices in home or culture into classroom teaching so that
students not only enjoy the learning but also explore geometry and its application from their
daily life.

Geometry in halo (plough)
Now look at the figure below. It is a very popular artifact in rural Nepal especially for farmers.
What geometry do you find in it? If you say lines and angles, you are right. The different part of
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a plough represents lines and they make different angles. What are the different angles? Yes,
acute angle, straight angle and obtuse angle.
So, just taking halo, we can explore the concept of intersecting lines and angle between them.
Also we can see the effect of changes in the angles between the lines. This provides a practical
application of concept of angle and its size in our daily life.

Geometry in a house
This is a house in Bajrayogini (figure below). You can see different geometrical entities in the
house. The geometry of wall, the geometry of roof and the geometry of doors and windows. The
wall is made up of clay bricks and it is rectangular in shape. The roof has a slope at an angle with
the horizontal line or surface. The pattern of tiles on the roof shows a great cultural application of
geometry in Tamang community. Students can explore angles, patterns...