MATHEMATICS 4 4th rating.doc

8/11/2019 MATHEMATICS 4 4th rating.doc

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MATHEMATICS IV

Date: ___________

I. Objective:

Solve word problems involving addition of similar fractions without regrouping

Value: Cooperation

II. Subject Matter:

Solving word problems involving addition of similar fractions without regrouping

References: BEC-PELC II D !"

Enfolding #athematics I$

Materials: flashcards% word problem written on manila paper

III. Learnin Activities:

A. !re"arat#r$ Activities:

"! Drill:

&ral drill on adding basic facts using flashcards! ' ( ) * +

," , ,( , ,

------ ------ ------ ------ ------

! .eview:

/ddition on similar fractions using flashcards!

0( , "0( 1 )0"2 , 0"2 1 0' , 0' 1 (03 , 03 1

! #otivation:

Is it important to 4oin in 5our school activities6 7h56 8ow do 5ou feel when 4oining

school activities li9e field trips6

%. Devel#"&ental Activities:

"! Presentation:

.ead and solve this problem

#rs! Bustamante bought a rectangular ca9e! She divided it into ' eual parts! 8er son ate

0' and her daughters ate 0' of it! 8ow man5 parts of the ca9e were eaten6

"! 7hat are given in the problem6

! 7hat is as9ed in the problem6

! 7hat operation will 5ou use6 7h56

C. 'enerali(ati#n:8ow do we solve word problems6

D. !ractice E)ercises:

.ead and solve on 5our paper!

;ootsie spent 0) of an hour sweeping the 5ard and "0) of an hour watering the plants! 8ow

long did she wor96


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IV. Evaluati#n:

/! .ead and solve the problems carefull5! .emember the steps in problem solving!

"! Charisse spent 0 four scrubbing and sweeping the floor and "0 hour wiping the furniture%

8ow long did she wor9 in the living room6! Bernard bought 0' gram of peanuts in the morning and 0' gram of cashew nuts in the

afternoon! 8ow man5 grams of nuts does he have6

V. Assin&ent:

/! .ead and solve following the steps in problem solving!

"! #other bought a whole pi


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MATHEMATICS IV

Date: ___________

I. Objective:

Solving word problems involving subtraction of similar fractions without regrouping

Value: =ollowing Directions

II. Subject Matter:


References: BEC-PELC II D !





"! Drill:

&ral drill on subtracting basic subtraction facts using flashcards!' 3 "2 3 +

-( -) - * - ( -

------ ------ ------ ------ ------

! .eview: =ind the difference

"'02 > (02 1 (02 > 02 1 0( > 0(

! #otivation:

Is it important to follow directions correctl56 7h56 Let us see if 5ou can follow some

directions in order to solve a problem!

"! ?et a strip of paper!! =old it into ) eual parts

! Color 0) red and "0) of it green

)! 7hat part of the strip is left uncolored6 7rite 5our answer at the bac9 of the colored

paper!


"! Presentation:.ead the problem carefull5! /nswer the uestions about it!

8arold and Chito sold '0"22 9g of old news papers on Saturda5 and +0"22 9g on

Sunda5! 7hat is the difference in the weight of the newspaper old on Saturda5 and Sunda56

B! /nswer the uestions below!

"! 7hat is as9ed in the problem6! 7hat are the given facts6

! 7hat process will be used6

)! 7rite the mathematical sentence for the problem!

(! 7hat is the correct answer6

C. 'enerali(ati#n:

/s9: 8ow do we solve word problems6


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.ead the problem and solve on 5our paper!

;he girls used 0) 9ilogram of cabbage and "0) 9ilogram of lettuce in their coo9ing class!

8ow man5 more 9ilograms of cabbage and lettuce were used6

IV. Evaluati#n:"! #arco has *0' meters of illustration board! 8e used )0' of it for his drawing! 7hat part of his

illustration board was left6

! =ather bought +0" liters of gasoline! 8e used (0" liters in going to a nearb5 town! 8ow man5

liters of gasoline was left unused6

V. Assin&ent:

.ead and solve the problems! =ollow the steps in problem solving

"! /ling #ila bought 0) 9ilogram of grapes! She gave 0) 9ilogram to her mother! 8ow man5

9ilograms of grapes were left to her6

! Lando cut a bamoo stic9 which was @ meter long! 8e used A meter for a garden peg! 7hat was

left of his bamboo stic96


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MATHEMATICS IV

Date: ___________

I. Objective:

$isuali


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$isuali


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MATHEMATICS IV

Date: ___________

I. Objective:

=ind the fractional part of a number!

Value: Cooperation

II. Subject Matter:

=inding fractional part of a number

References: BEC-PELC II D "!


Materials: flashcards% cutouts of fractions% learning activit5 sheets% counters li9e buttons% seeds%

etc!



"! Drill:&ral drill on basic multiplication facts using flashcards!

) 1 ' 1 + ( 1 * ) 1 ) 3 1

! .eview:

?ive the multiplication sentence suited for the given pictures!

! #otivation:

a! Divide the class into groups of )! ?ive each group 2 counters and number cards from 2

to 3!

b! /s9 the groups to use their counters to show the following!Eample: H of " 1 *

"! "0 of "(

! "0 of "'

! "0( of 2


"! Presentation:

.amil has 2 marbles in a 4ar! &ne fifth of it are red marbles! 8ow man5 red marbles are

in the 4ar6

"! 8elp them anal5


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b! 8ow man5 marbles are there inside the 4ar6

c! 7rite the mathematical sentence6

d! ?et "0( of 2! 7hat is 5our answer6

C. 'enerali(ati#n:

8ow do 5ou get the fractional part of a number6


.ead and solve on 5our paper!

Joshua had " colored pencils! 7hat if "0) of them are bro9en6 8ow man5 pencils are

bro9en6

IV. Evaluati#n:

=ind the answer!

"! "0"2 of 22 1 n

! "0" of * 1 n

! 0 of 2 1 n

)! @ of "* 1 n

(! 0+ of ") 1 n

V. Assin&ent:

=ind the answer!

"! 0) of "*! 0' of )2

! )0( of (2

)! 03 of '"

(! 0 of "'


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MATHEMATICS IV

Date: ___________

I. Objective:

;ranslate epressions such as H of 0% 0 of "0*

Value: .esourcefulness

II. Subject Matter:

;ranslate epressions such as H of 0% 0 of "0*

References: BEC-PELC E "!!" and E


Materials: flashcards% cutout of fractions% learning activit5 sheet% chart showing illustrations



"! Drill:

Contest on basic multiplication facts using flashcards! 1 + 1 ( 1 1 * 1

! .eview:

aming fractions

?ive the fractions for the shaded part

! #otivation:

?et H sheet of ?rade ) paper! =old H of 5our paper! 7hat is H of a half6


"! Presentation:a! anc5 found a piece of white cloth in an old chest of her grandmother! She cut 0 of it

then she used H of this for her apronKs poc9ets! 7hat part of the whole piece of cloth did

anc5 use for her apronKs poc9ets6

"! 8elp the pupils in the anal5sis of data!

a! 7hat 9ind of a girl is anc56

b! If 5ou were anc5% would 5ou do the same6 7h56

c! 7hat part of the cloth did anc5 cut6! 8elp them visuali


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IV. Evaluati#n:

;ranslate the following epressions to multiplication sentences!

"! 0) of H 1

! 0 of "0( 1! 0( of "0 1

)! 0* of A 1(! 0( of "0

V. Assin&ent:

;ranslate the following epressions to multiplication sentence!

"! 0+ of @ 1

! H of )0( 1

! "0 of )0+ 1

)! 0) of 0' 1

(! "0( of H 1


11/44

MATHEMATICS IV

Date: ___________

I. Objective:

#ultipl5ing a fraction b5 another fraction

Value: ?enerosit5

II. Subject Matter:

#ultipl5ing a fraction b5 another fraction

References: BEC-PELC II E


Materials: chart% multiplication table% picture% rectangular regions% show-me-boards% learning

activit5 sheets



"! Drill:Conduct a drill on the basic multiplication facts!

) * * 3 ' + ( * *

! .eview:

.eview epressing fractions in lowest term!

7rite each fraction in its lowest terms!

a! 0"2 1 c! '0 1

b! *0"( 1 d! (0"( 1

! #otivation:

Show a picture o a ca9e and sa5% MSuppose 5ou have a whole ca9e! Nou cut it into halvesand gave of a half to 5our neighbor!

7hat part of the whole ca9e did 5ou give awa56

/s9: Is it good to share food with neighbors6 7h56


"! Presentation:

Present the lesson b5 as9ing ) groups of pupils to follow directions written in activit5sheets!

a! /s9 representatives from each group to post their wor9 on the board as he0she reports

about it!

b! ;eacher chec9s which groups have the correct illustration!

c! /s9: 7hat is "0 of "0) then6Show this on the board:

H of A 1 "0'

C. 'enerali(ati#n:

8ow do we multipl5 a fraction b5 another fraction6



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.ead and solve on 5our paper! Epress the answer in its lowest term!

"! / butter ca9e recipe needs @ cup mil9! 8ow man5 cups of mil9 are needed to ma9e H6

! / sewer made poc9ets for shirts! =irst% she cut 0 meter of the material! ;hen% she use @ of

the material she had cut for poc9ets! 8ow much material did the sewer used for poc9ets6

IV. Evaluati#n:

#ultipl5! 7rite the answer in its lowest term!"! "0 "0' 1

! H 0 1

! )0( H 1

V. Assin&ent:

=ind the value of n

"! "0 H 1 n

! 0 0( 1 n

! 0( "0"2 1 n

)! )0( "0 1 n

(! "0 @ 1 n


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MATHEMATICS IV

Date: ___________

I. Objective:

Solving word problems involving multiplication of fractions

Value: Cooperation and Sportsmanship

II. Subject Matter:

Solving word problems involving multiplication of fractions






"! Drill:

&ral drill on basic multiplication facts using flashcards!Eample: ( ) 1 * 1 + * 1 ' 3 1

! .eview:

/s9: 7hat are the steps in solving word problems!

! #otivation:

Sa5: /re 5ou read5 for a contest on multiplication of fractions6 Osing flashcards% conduct

a contest on multipl5ing fractions! Do this b5 groups! Emphasi


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8ave the pupils anal5


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MATHEMATICS IV

Date: ___________

I. Objective:

/nal5


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Suppl5 the missing words!

.o5 used "0 of the +0' meter of bamboo stic9 for his lantern! 8ow much of the stic9 was

used6

"! ;he problem is as9ing for

! ;he answer to the problem is ! ;he mathematical sentence is

)! ;he process to be used is (! ;he and are the given data!

IV. Evaluati#n:

Connie had @ of a ca9e! She gave H of it to her friend! 7hat part of the ca9e did Connie give

awa56

Choose the letter of the correct answer!

"! 7hat is as9ed in the problem6

a! Pieces of the whole ca9e

b! Part of the ca9e that is given awa5

c! Parts of the ca9e that were eaten

d! Pieces of the ca9e that were bro9en

! 7hat are the given facts6a! H part of the ca9e

b! @ part of the ca9e

c! H and @ of a ca9e

d! 0' part of a ca9e

V. Assin&ent:

7rite the words that show the steps in anal5


17/44

MATHEMATICS IV

Date: ___________

I. Objective:

Identif5 the different 9inds of plane figures

Value: Carefulness and awareness to the things around us

II. Subject Matter:

Identif5ing the different 9inds of plane figures

References: BEC-PELC III / "!"


Materials: cutouts of different shapes% real ob4ects% illustrations0drawings% coins



"! &ral drill on basic multiplication facts using flashcards!

Eample: * 1 ' 1 + 3 1 ' " 1

! .eview:

Lucia and Claudine went to visit their Lola Clara in the cit5! ;he5 rode on a bus which

rolled out into the highwa5! ;he5 saw signs li9e these as the5 were traveling

Can 5ou tell the shapes of the sign boards6

Can 5ou identif5 them6

7hat do signs tell us6

7hat are the importance of this sign to us6

! #otivation:

Do 5ou 9now the song% Mbaha5 9uboM

7hat does it tell6

If 5ou were to describe the vegetables% how does each vegetable loo9 li9e6

7ho can give the tune of the song6


"! Presentation of the lesson:

a! Introduce the lesson with a song to the tune of MBaha5 uboM 7hat is #ang i9o

made of6 F


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;hat is what #ang i9o is made of! 7hat are the figures mentioned in the song6

Can 5ou identif5 each figure6

C. 'enerali(ati#n:

7hat do we call a closed figure68ow about a figure with sides6

7hat about ) sides67hat do 5ou call these figures6


aming game bod5 or sign languageF

"! circle

! triangle

! uadrilateral

IV. Evaluati#n:

Direction: Count the number of place figure in the illustration!

D5ads: 8ow man5 uadrilaterals are there6 ;riangles6 Circles6

V. Assin&ent:

Identif5 the different bod5 parts of the doll and describe each figure!


19/44

MATHEMATICS IV

Date: ___________

I. Objective:

Identif5 the parts of a triangle

Value: &rderliness in doing the activit5

II. Subject Matter:

Identif5ing the parts of a triangle

References: BEC-PELC III /! "!a


Materials: tetboo9s% cutouts of triangles% protractor% art paper



"! Drill:

Show pictures showing pol5gons with different sides and let the pupils identif5 them!

! .eview:

Show cut outs of different plane figures and let the pupils identif5 them circle% suare%

triangle% rectangle% rhombus% parallelogram% trape


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ame the part of the triangle that is indicated below!

IV. Evaluati#n:

ame the triangles in each figure! Identif5 each one of them!

8ow man5 triangles do 5ou see in the figure6 ame them!

V. Assin&ent:Draw the following

"! right triangle

! scalene triangle

! obtuse triangle

)! euilateral triangle


21/44

MATHEMATICS IV

Date: ___________

I. Objective:

Identif5 the parts of a uadrilateral

Value: Sportsmanship

II. Subject Matter:

Identif5ing the parts of a uadrilateral09inds of uadrilateral

References: BEC-PELC III / "!b


Materials: cutouts of uadrilaterals0triangles



"! Drill:

Suare Deal Stress sportsmanship when pla5ing gamesF

! .eview:

! #otivation:

Loo9 at the ob4ects inside our room what different shapes do 5ou see6 I have here a stor5

problem! I want 5ou to listen carefull5 then use 5our imagination to answer the uestion!


"! Presentation:

;he $alde< famil5 lives at St! Jude $illage% Cit5 of San =ernando! Beautiful landscape of

surrounding the houses are a sigh to see! ;he different structures and trees planted along thestreets ma9e life worth living for! Can 5ou imagine the different shapes in the place6


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! /nal5sis0Discussion:

ote: Let the pupils answer the uestions in d5ads! ;ell them to describe each figure the5

have made!

a! 7hat shapes can 5ou imagine6

b! 7hat is the common shape of the houses in the village6c! 7hat is the shape of the floor tiles6

C. 'enerali(ati#n:

7hat are the parts of a uadrilateral6


Draw the following uadrilaterals6

"! Suare

! .hombus

! .ectangle

)! Parallelogram

(! ;rape


23/44

MATHEMATICS IV

Date: ___________

I. Objective:

Identif5 the parts of a circle

Value: Identif5ing the parts of a circle

II. Subject Matter:







"! &ral drill on basic multiplication facts using flashcards!

Eample: * 1 ' 1 + 3 1 ' " 1

! .eview:

Below is a picture of a house! Identif5 the suare% the rectangle% the trape


24/44

C. 'enerali(ati#n:

7hat is a diameter6

7hat is a radius6

7hat is a circumference6


Draw a circle showing the following!"! S as the center

! S; as the diameter

! SN as the radius

)! SQ as the radius

(! S& as the radius

IV. Evaluati#n:

Osing the same circle% tell what is the name in each number below! 7rite the diameter or radius!

"! & 1

! &. 1

! P. 1

)! & 1

(! &P 1

V. Assin&ent:

"! If the radius of a circle is "2 cm% how long is its diameter6

! 8ow long are the radius6

! Show the circle b5 means of drawing!


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IV. Evaluati#n:

Draw the following ob4ects! Onder the pictures drawn% identif5 the plane figures0s represented b5

each!

"! alphabet boo9

! tent

! orange

)! Coor

(! 9iteDraw a big suare! Inside it% draw a small triangle! /t the three sides of the triangle% draw three

small circles! /t the center of the triangle draw an oblong! 7hat 9ind of figures have 5ou drawn6

V. Assin&ent:

Draw "2 plane figures! Describe the plane figures 5ou have drawn!


27/44

MATHEMATICS IV

Date: ___________

I. Objective:

Identif5 parts of an angle

Value: Cooperation

II. Subject Matter:

Identif5ing the parts of an angle

References: BEC-PELC III / % !"


Materials: Drawing and cut outs of angles



"! Drill:

Identif5 the following lines!

! .eview:7h5 is a ra56

ame the ra5s in the illustration!

! #otivation:

7hat do 5ou thin9 will be formed when the endpoint of the two ra5s meet6


"! Presentation:

"! /s9 a pupil to draw a point on the board and name this point &!

! /s9 another pupil to draw a ra5 with & as the ndpoint and name this ra5 &.!

! Introduce the name verte!;he common endpoint of ra5 &. and &R is called verte! ;he ra5s are called the sides


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7hat figure have 5ou formed6

7hat angle have 5ou formed6

C. 'enerali(ati#n:

7hat are the parts of an angle6 7hich is the verte6

D. !ractice E)ercises:Identif5 the numbered part of each angle!

IV. Evaluati#n:

?ive the endpoint and the two sides of each angle below!

V. Assin&ent:

ame as man5 angles as 5ou can in the figure below!

7hat is the verte of all the angles6 ame ( sides of an5 angle!


29/44

MATHEMATICS IV

Date: ___________

I. Objective:

$isuali


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! Described the angle formed at B! It loo9s li9e a suare corner! Introduce the word right angle!

It measures 32 degrees!

! ?ive the pupils two strips of cardboard 4oined together b5 a fastenerT!!pp!)

C. 'enerali(ati#n:

7hat are the different 9inds of angles6

7hat is the right angle67hat is an acute angle6

7hat is an obtuse angle6


Stud5 the drawing below! ame each 9ind of angle below

IV. Evaluati#n:

7hat 9ind of angle is in each number below6

V. Assin&ent:

#a9e the following using colored paper or cartolina!"! #a9e cut outs of acute angles!

! #a9e cut outs of obtuse angles!

! #a9e cut outs of right angles


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MATHEMATICS IV

Date: ___________

I. Objective:

Classif5 angles as right% acute and obtuse

Value: Cooperation

II. Subject Matter:

Classif5ing angles as right% acute and obtuse!

References: BEC-PELC III / !


Materials: cloc9% charts% illustrations



"! Drill:

a! 7hat is an angle6b! ame each angle below!

! .eview:

?uessing game: ?uess who I am then as9 somebod5 to show and angle on the board!

a! I am an angle% Im smaller than a right angle! I measure less than 32 degrees! 7ho am I6

acute angleF

b! I am an angle which is bigger than a right angle! I measure more than 32 degrees! 7ho

am I6 obtuse angleF

! #otivation:

Show groups of angles to the classF/s9:

8ow are these angles grouped together6


"! Presentation:

Loo9 at this cloc9! 7hat time does the Construct or paste them on a piece cloc9 show6

3:22F7hat 9ind of angle is formed6

&bserve the figure! /nswer the following!

a! ame right angles!

b! ame ) acute angles!

c! ame obtuse angles!

d! ame an angle that loo9s the same in si


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C. 'enerali(ati#n:

8ow did we classif5 the angles6

7e classified the angles according to 9ind: right% acute% obtuse!


Bring #e ?ame

?roup "

Bring me ( ob4ects with acute angles

?roup

Bring me ( ob4ects with acute angles

?roup

Bring me ( ob4ects with right angles

IV. Evaluati#n:

7hat 9ind of angle is in each group6

V. Assin&ent:Loo9 at the angles below! Classif5 them as to right% obtuse and acute angle!


33/44

MATHEMATICS IV

Date: ___________

I. Objective:

Identif5 congruent angles

Value: Cooperation

II. Subject Matter:

Identif5ing congruent angles

References: BEC-PELC III / !)


Materials: protractor% several eamples of congruent figures% rectangular and suare pieces of

paper% comapass



"! Drill:/s9 the pupils to name the different 9inds of angles formed b5 rectangular strips

fastened together!

! .eview:

7hat is a right angle6 /n acute angle6 /n obtuse angle6

! #otivation:

Show pieces of the same si


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IV. Evaluati#n:

"! Ose the piece of cardboard to find out which angles are congruent!

! Ose the protractor or compass to find out which angles are congruent!

! Draw pairs of congruent angles!

V. Assin&ent:/! &n a piece of bond paper% construct pairs of congruent angles!

B! Choose the pairs of angles that are congruent! Nou ma5 use a compass to find out if the5 have the

same measure!


35/44

MATHEMATICS IV

Date: ___________

I. Objective:

=ind the perimeter of a triangle

Value: Conservation of trees

II. Subject Matter:

=inding the perimeter of a triangle

References: BEC-PELC I$ / "


Materials: modules or illustrations of triangles% ruler



"! Drill:

Drill on adding numbers mentall5"2 , " 1 )( , )( 1 "'2 , "2 1 "+2 , "2 1

! .eview:

Identif5ing different 9inds of triangle! Show models of triangle!

7hat 9ind of triangle is this6 7h56 Because it has a right angle!

! #otivation:

LetKs estimate the sum of the sides of each triangle in centimeters!

LetKs see who got the correct estimation!


"! Presentation:

a! Provide each group with the same si


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IV. Evaluati#n:

/! =ill in the blan9s below!

"! Perimeter 1 "' cm , " cm , "2 cmP 1 cm

! Perimeter 1 "2 cm , "2 cm , " cmP 1 cm

! Perimeter 1 "( cm , "( cm , "( cm

P 1 cm

)! Perimeter 1 ' cm , ( cm , "' cm

P 1 cm

(! Perimeter 1 " cm , " cm , " cm

P 1 cm

V. Assin&ent:

Bring to class ( cut outs of triangles with the measurements of sides!


37/44

MATHEMATICS IV

Date: ___________

I. Objective:

Derive a formula for finding the perimeter of a pol5gon!

Value: /ccurac5

II. Subject Matter:

Deriving a formula for finding the perimeter of a pol5gon!

References: BEC-PELC I$ / "!


Materials: tetboo9s% real ob4ects% diagrams% illustrations% cut outs of pol5gons



"! Drill:

Identif5ing pol5gons b5 means of a guessing game!Eample:

I am a pol5gon with four euals sides 7ho am I6

! .eview:

/s9 what unit of measure is appropriate for ob4ects such as:

Distance between buildings

Sides a hand9erchief

Safet5 pin

! #otivation:

Show a plain hand9erchief! Do 5ou carr5 5our hand9erchiefs ever5da56 7h56 7hat are

the uses of a hand9erchief6


"! Presentation:

a! Show a piece of lace

If Im going to sew lace around this hand9erchief would this lace be enough6 ?et thechildrens opinion! 7hat are we going to do to get the eact length of the lace6 Let the

pupils measure the sides and compute for the distance around! /s9 what the5 measured

and wh5! ;ell them to describe what the5 measured leading them to use the phrase

distance around! Introduce the term perimeter for this distance! 8ave the pupils illustrate

the ob4ect hand9erchiefF on the board with the corresponding measures and as9 one to

write the number sentence for this!

( , ( , ( , ( or ) (

;hus the formula is

P 1 S , S , S , S or P 1 ) S

C. 'enerali(ati#n:

7hat is perimeter6

8ow do 5ou find the perimeter of a pol5gon6


38/44


=ind the perimeter of each figure!

IV. Evaluati#n:

Seatwor9

"! ?ive the perimeter of each figure!

V. Assin&ent:

#a9e cut outs of pol5gons! 7rite the measurement of each side!

cm


39/44

MATHEMATICS IV

Date: ___________

I. Objective:

Solve word problems involving perimeter measure

Value: Cooperation0/ccurac5

II. Subject Matter:

Solving word problems involving perimeter measure

References: BEC-PELC I$ / "!!"


Materials: picture chart% poc9et chart% flashcards



"! Drill:

7hat formula a do we use to find the perimeter of the following6- rectangle

- triangle

- pentagon

- suare

=ind 5our answer in the poc9et chart!

! .eview:

7hat must be remembered in solving word problems to ma9e sure that 5ou will get the

correct answer6

! #otivation:

7ho comes to school b5 4ust wal9ing6 !8ow far do 5ou wal9 from 5our home to the

school6 Do 5ou 9now how to find it6


"! Presentation of lesson through a word problem

$ince wal9ed from his house to the school then to the mar9et and bac9 home! 8ow fardid he wal96


40/44

C. 'enerali(ati#n:

8ow did we solve the problem6


Solve this word problem b5 5ourself!

=or 5our pro4ect in EPP% 5ou made a suare frame that measures )( centimeters on one side!7hat is the perimeter of the frame6

IV. Evaluati#n:

Solve the word problems! =ollow the steps in problem solving!

"! Jocel5ns flower garden has a length of "2 meters and a width of * meters! =ind the perimeter of

the garden!

! &ne side of a suare pla5ground of San Isidro Central School measures "2 meters! 8ow man5

meters of chic9en wire are needed to enclose the pla5ground6

! ;here are "( regular heagonal poster frames in the dill5s galler5! Each side of the frame is

cm long! 8ow much wood had been used for the frames6

V. Assin&ent:"! =ormulate one problem involving perimeter measure!

! .e bought an octagonal mirror with each side measuring ( cm! 7hat is the perimeter of the

mirror6

! Jelleni 4ogs around a triangular par9 which measures )( meters% (2 meters and )( meters!8ow far will she 4og if she goes around the par9 twice6


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MATHEMATICS IV

Date: ___________

I. Objective:

=ind out the area of a triangle

Value: Cooperation the area of a triangle

II. Subject Matter:

=inding the area of a triangle

References: BEC-PELC I$ B "a


Materials: meter stic9% ruler% tape% scissors% cut outs



"! Drill:

"! Drill 7hat will 5ou do to ma9e the lanterns beautiful6Let the pupils give the answers b5 multipl5ing neighboring numbers until the triangle is

completed!

;riangle .ound up

! .eview:

Osing cut outs of triangular flaglets with labels on each side% as9 the pupils to give the

formula in finding the area of a triangle!

! #otivation:

/mado made a triangular lantern with a base of 2 cm and a height of ( cm! 7hat is the

total area of a lantern6

/s9: 7hat are lanterns for6

7hat will 5ou do to ma9e the lanterns beautiful6

7hat is the shape of the lantern6


"! Presentation:

a! ?roup /ctivit5

?roup /

"! Illustrate on how to find the area of the triangle!

! Solve for the area of the triangle!


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?roup B

"! Osing a cartolina% show the eact measurement of the triangle!

! Label each side and find the area of the triangle

C. 'enerali(ati#n:

8ow did 5ou get the area of a triangle6


=ind the area of the triangle!

c! / triangular-shaped lot has a base of 2 m and a height of "( m what is the area6

IV. Evaluati#n:

"! 8ere is a diagram of the lot bought b5 Jose! 8e divided it diagonall5! ;he resulting lots are

triangular! 8e gave one lot to his nephew! 7hat is the area of the lot6

V. Assin&ent:

! ;he triangular lot has base of 2 m and a height of "( m! what is the area of the lot6

! #easure a piece of grade ) paper% find the measurement of the length and the width! =old it

diagonall5 and solve the area of the triangle formed!


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MATHEMATICS IV

Date: ___________

I. Objective:

=ind the area of parallelograms in suare meters or centimeters

Value: Sharing oneKs ideas

II. Subject Matter:

=inding the area of parallelograms

References: BEC-PELC I$ B "b


Materials: graphing or grid paper% learning activit5 sheet!



"! Drill:

Drill on basic multiplication facts orall5"2 " 1 ( * 1 '2 "2 1 "+ "2 1

! .eview:

?ive the euation for the figure!

! #otivation:

Situation:#r! ;an is covering the floor area of his sala with suare tiles! 8ow man5 suare tiles

does he need6

If 5ou are #r! ;an% how are 5ou going to do it6 7hat are 5ou going to do with the suare

tiles6 Can 5ou paste it on6 7hat will 5ou put on it so that it will not be removed6


"! Presentation:

=or #r! ;ans floor area of his sala! ;here are ' rows of suares! ;here are "2 suares ineach row!

?roup /ctivit5

?roup "

a! Illustrate the floor area of #r! ;ans Sala!

b! Indicate the measurements on each side!

c! #ultipl5 the length and width! 7hat is the answer6


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?roup

a! 7rite the length and width of #r! ;ans sala!

b! Solve b5 multipl5ing the given numbers!

c! Label 5our answer b5 epressing it in suare units!

C. 'enerali(ati#n:

8ow do 5ou find the area of a rectangle6 8ow about a suare6


=ind the area

"! L 1 "2 mm L 1 ( cm

7 1 3 mm 7 1 " cm

/ 1 / 1

! #ang Pedros suare vegetable garden measures ( meters on one side! If a lot measures "

meters long and "2 meters wide! 7hat is its area6

IV. Evaluati#n:

=ind the area!

"! =ind the missing numberL 1 " m S 1 "2 dm

7 1 * m / 1

/ 1

! / glass of measures "2 cm b5 )* cm! will it fit a table that measures "+ cm b5 * cm6 7h56

V. Assin&ent:

"! #easure the length and width of 5our dining table then solve for its area!

! =ind the area of 5our room!

MATHEMATICS 4 4th rating.doc

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