1. class-vii subject-manths
date-28.8.10 time-40 Minutes
topic-heron's formula
previous knowledge
1) what are differents types of triangles on the bases of their sides
2) what do you mean by area
3)what is the formula for finding area of aright triangle
concept:Area of triangle using heron's formula
learn will be able to determine area of given triangle with the help of heron's
formula
Teaching points:
knowledge: learn will be able to determine perimeter of a given triangle
understanding: learner will be able to infer that the angle of agiven triangle
can be determined with the help of angle sum property.according to which sum of
angles of triangle is 180.
IN triangle ABC,
angle A +angle B + angle c =180*
and this will be kaown to the student after explained by the
teacher.
Application:learner will be able to determine the angle of different type of
given triangle with the help of ANGLE SUM PROPERTY.
Analysis and synthesis: learnerlearner will be able to summariaze the topic
discussed in class
and able re write about it after being asked by the
teacher.
learning outcome : learner will be able to determine the angle of different
types
of given triangle.
Instructional strategy:
Knowledge interactive
understanding direct
Application interactive
analyse and synthesis interactive
learning resources: text book,reference book,ppt,different cuttings of
triangle.
CHECK FOR UNDERSTANDING:
Formative:
Q1:Triangle ABC is an equilateral triangle .find
the measure of its each angle?
Q2:tow angles of atriangle ABC are 45* and 60*. find the
third angle.
Summative:
Q1:One angle of anisoceles triangle is 110*.find the remainging two
angles?

2. Q2:the angles of atriangle are in ratio 1:2:3. find the angles of this
Treangle.
FUTURE LEARINING OUTCOME: Learner will be able to determine sum of angles of
quadrilateral.