8/9/2019 jan 21 math

1/8

DATE: _______________TIME: ________________

Math III

ObjectivesFind the capacity of a container using milliliter/liter

Convert liter to milliliter and vice versa

Value FocusWater conservation

Prerequisite Concets an! "#illsNon-standard unit of capacity

MaterialsMeasuring cup or jug, medicine bottles and medicine dropper, shampoo

bottles, glass and cups, dierent liuid containers, !ater

Instructional Proce!ures

A$ Preli%inar& Activities'$Drill

"ave a drill among pupils in listing the liuids they use athome#$s%& "o! are these liuids pac%aged'

(# (evie))ive the most appropriate unit of measure for the follo!ing *cm or m+#

a# paper b# table c# boo% d# rope d# match

bo

# Motivation.ut t!o glasses on your table, one glass !ith !ater, the other

oneempty# .our a small amount of !ater from one glass to the

other#$s%& What is the eact amount of !ater poured in the

empty glass'What units of measure should be used to

determine the amount ofliuid in the glass'

ay& No!adays !e eperience !ater shortage# What can you do to0o it'

1# Develo%ental Activities

'$Presentin* the +esson

.resent real measuring devices that sho! 2 and m2& e#g#

measuringcup, jug, medicine dropper or bea%er

%+

8/9/2019 jan 21 math

2/8

2et pupils name the measuring devices# 2et them identify !hat theysee on the

measuring devices#

$s%& What does 2 stand for' "o! about m2' What do they measure'

3ntroduce the term capacity# ay& Capacity means ho! much liuid acontainer

can hold# 4ell them that some of the units of measure forcapacity is liter *2+ or

milliliter *m2+#

$s% a pupil to measure 5 m2 of !ater#$s%&

Which of these devices !ill you use' Why' .our the amount in a smallglass#

$bout ho! many milliliters of !ater does this glass contain/hold' 2etpupils

give their estimates#

"o! about this pail, ho! many milliliters of !ater does it contain/hold'2et pupils

give their estimates#

$s% another pupil to measure 5 2 of !ater#$s%&

Which of these devices !ill you use' Why'

Can you put 5 2 of !ater in the small glass' Why'"o! about in the pail' Why' $bout ho! many liters of !ater can it contain/hold'

,$ Per-or%in* the Activities0ivide the class into 6 groups# 2et them do the activities given#

$ctivity 7 )roups 5 and (

Materials& measuring cup/jug that sho!s m2, !ater, glass, smallmedicine

bottle.rocedure&

5# 4a%e turns to use the containers#

(# Fill the container up to its brim !ith !ater#

# .our the !ater from the container to the measuring cup/jug#

8# 9ead the scale carefully#:# 9ecord the amount of liuid the container holds in the table assho!n#

Container $mount of !ater/liuid

itholds in milliliter

)lass

mall medicine bottle

$ctivity 7 )roups and 8

Materials& measuring cup/jug that sho!s 2, !ater, jug, pail

.rocedure&

5# 4a%e turns to use the containers#(# Fill the measuring cup/jug up to 5 liter#

8/9/2019 jan 21 math

3/8

# .our the 52 !ater into the container#

8# Fill the container !ith as many as 5-2 !ater until it is full#

:# 9ecord the amount of liuid the container holds in the table

assho!n#

Container $mount of !ater/liuid it

holds in literWater jug

.ail

$ctivity 7 )roups : and 6

Materials& plastic cups !ith labels (:; m2 and 5;; m2,

respectively, 5 2juice drin% bottle *see illustration+

%+

%+

.rocedure&

5# Fill a (:;-m2 plastic cup !ith !ater#(# Fill the soft drin% bottle !ith (:; ml !ater until it reaches 5 liter#

# 9ecord the number of times the 5 2 bottle is filled !ith

(:; m2!ater#

8# "o! many (:; m2 cups of !ater does the 5 2 bottle

contain'"o! many milliliters of !ater did you put in the 5

liter bottle':# .our !ater in a plastic cup up to 5;; m2#6# Fill the bottle !ith 5;; m2 !ater until it reaches 5 liter#

8/9/2019 jan 21 math

4/8

5:# "o! about groups and 8, do they have the sameans!er' Why'What unit of measure did you use to find thecapacity of the givencontainer'56# Which containers can hold milliliters of liuid' liters of

liuid' Why'0o groups : and 6 have the same ans!er' Why'

5

8/9/2019 jan 21 math

5/8

# $s% pupils !hat is the appropriate unit of capacity measure to be used,m2 or 2 for each container# Write their ans!ers on the ?ho!Me@ board#8# Call some pupils to sho! and read the amount of liuid thecontainer

holds based on its label#

:#b# )roup $ctivity

6# "o! do you measure capacity !ith metric units'

#

8;#85# bject

8(#8# Bstimated

88# Capacity

to thenearest

Milliliter/2iter8:# e#g#

vinegarbottle

86# 8# :;#

:5# cup or mug :(# :#

:8# large ::# :6#:

8/9/2019 jan 21 math

6/8

6# 2et the pupils list do!n

the given#

8/9/2019 jan 21 math

7/8

>:#

8/9/2019 jan 21 math

8/8

>6#