Grade: 7
Subject: MATHEMATICS
Topic: AREA OF TRIANGLE.
Teacher’s Name:
WA R M U P
ACTIVITY
PRE TEST:
Which are the different types of
triangles?
INTRODUCTORY
ACTIVITY: CHALLENGE
Before she goes camping, La
Verne has to buy a tent pole to
replace the one she lost on her
last outing. If the area of the front
of the tent is 22 square feet and
the base of the tent is indicated
below, how tall must the pole be?
INTRODUCTORY ACTIVITY
LEARNING OBJECTIVE
•To evaluate area of a triangle.
•To apply in real life context
REAL LIFE APPLICATIONS
Triangles are also used in architecture for both aesthetic and functional
purposes. The triangle shape is often used to create interesting and
dynamic shapes in building design.
They are used in structural engineering, architecture, graphics and
design, and navigation and geography to create stable and interesting
shapes
Group B: Suppose the height of a cone is 20cm and
its base is 10cm, then find the area of 50 such
cones.
CONCEPT
ACTIVITY:
Group A: Find the area
of the given triangular
part of the roof of the
house
Group C:Before she goes camping,
La Verne has to buy a tent pole to
replace the one she lost on her last
outing. If the area of the front of the
tent is 22 square feet and the base of
the tent is 8ft, how tall must the pole
be?
Challenge
https://www.geogebra.org/m/jmgu5t2z
PLENARY
&
AFL:
LET’S PLAY A GAME!
https://wordwall.net/resource/14759047/area
-of-triangles