Detailed lesson Plan in Mathematics 9
I
Objectives:
After the lesson, the the students students will be able to: 1 Define Define the meani meaning ng of angles angles of of elevatio elevation n and angle angle of depres depression sion;; 2 Give the segment segment that represen representt the the line line of sight; sight; 3 Find if the given given angle illustrate whether the angle angle is angle of of elevation elevation or angle of depresion.
II
Subject matter
a opi!: Angl Angles es of elevat elevation ion and and Angle Angles s of depres depression sion.. b "efere "eferen!e n!e:: #athisf #athisfun. un.!om !om$g $grad rade e % module module.. !
&alues lues 'nte 'ntegra gratio tion: n: (oo (oope perat ration ion..
d )trateg* )trateg* used: used: +As of earning earning -A!tivit* -A!tivit*,, Anal*s Anal*sis, is, Abstra! Abstra!tion tion and Appli!at Appli!ation ion III
Materials: 1 (hal/ 2 (hal/board 3 00 pre pres senta ntatio tion
IV
Procedure:
A. Daily Routine:
1. pening 0ra*er.
he students stand and pra*.
- et us all stand for our opening pra*er, to be led b*
Good morning$afternoon sir.
2. Greetings.
4o one is absent toda* sir.
- Good morning$afternoon
)ir. he si5 trigonometri! ratios are:
3.(he!/ing of Attendan!e. - #iss se!retar*, is there an* absent toda*6 +."eview.
sine = opposite$h*potenuse !osine = ad
- ast time we dis!ussed about the si5 trigonometri! ratios, the three basi!s and its re!ipro!als. Again, who !an give it6
&er* good 't seems li/e *ou alread* understand our lesson. )in!e that *ou don7t have an* 8uestions, so let us pro!eed to our new lesson.
he students will go to their !orresponding group and do the given a!tivit* b* the tea!her.
Primin:
' have here different /ind of pi!tures, imagine that *ou are on the top of it and *ou are thin/ing how far *our position from an* !ertain things on the ground. And vi!e versa when *ou are on the ground.
All the representatives tell their answer on the !lass.
!. Activity:
9efore we start our new lesson, let7s have an a!tivit*. Divide the !lass into si5 groups. a!h group will follow the instru!tion given in the a!tivit*. se a tape measure to measure the distan!e between *our e*es and feet. #ove around the room and find an ob
)ir. he angle of elevation is the angle from the hori>ontal to the line of sight of the observer to the obontal to the line of sight of the
observer to the ob
". Analysis:
(hoose one representative for ea!h group and tell the answer in the !lass. Des!ribe the illustration that *ou have !reated from the a!tivit*. ?hat mathemati!al !on!epts did *ou learn from the a!tivit*, when *ou up to tall ob
D. Abstraction:
ur lesson for toda* is all about the angles of elevation and angles of depression. o identif* the meaning of ea!h, we need first to /now the line of sight. (lass. he line of sight is an imaginar* line that !onne!ts the e*e of an observer to the ob
ine of sight above observer
Eye
horizontal line of sight
ine of sight below observer
#. A$$lication:
V
Assinment:
?hat is e5pansion6 Give the meaning and give at least three e5amples.