Lesson 77

Converting Common Units of Capacity Measure

BY SIR. REI MARASIGAN

ALAMINOS DIST.

LAGUNA DIV

Drill

A. Use flash cards. Instruct the pupils to use mental math in finding the product/quotient.

B. Find the fractional part.

a.1/2 of 600

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b. ¼ of 1 200

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c. 1/8 of 1 000

Motivation

• Look at the picture and describe what you see.

• Why do we need to keep our surroundings clean?
• How can you maintain cleanliness in your house? in your classroom?
• In what ways can we reduce the waste or trash in our surrounding?
• What objects in the picture can we reuse or recycle?

Presenting the Lesson

When you buy bottled mineral water or juice, aside from the brand, what other things do you want to see in its label?

(expiry date, ingredients, nutrition facts, serving size, etc.)

Is it necessary to know those facts? Why?

Performing the Activities

Group the pupils and give each group the materials and activity card.

Groups 1 and 2:

Materials:2 empty bottles that can hold 500 mL of water and 1liter of water

Directions: Pour the 1 liter of water in the 2 empty bottles

Questions

1. How many liters of water is

transferred in the 2 empty

bottles?

b. How many milliliters are there

in 1 liter?

1liter = 2 x 500 mL = 1 000 mL

Groups 3 and 4:

Materials:4 - 250 mL bottle of water and an empty bottle that can hold 1liter of water

Direction: Pour the water from the four 250mL bottles to a 1-liter bottle container.

Answer the following questions:

a. How many milliliters of water did you pour in the 1 liter bottle container?

b. How many liters are there in 1000 milliliters?

Reinforcing the Concept

a. Mother bought four 500 ml tetra packs of milk. How many liters is it?

4 x 500 = 2 000 mL

Since 1,000 mL = 1 liter

2 000 ÷ 1 000 liters

Therefore, 4- 500 mL of milk is equal to 2 liters

B. Lira has to transfer 5 liters of cooking oil in bottles of 250 ml.

How many bottles will she need?

Since 1 liter = 1 000 mL

5 x 1 000 = 5 000 mL: 5 000 ÷ 250 = 20

Therefore, 20 – 250 mL bottles are needed

.Summarizing the Lesson

• How do you convert liter to milliliter? milliliter to liter?
• To convert liter to milliliter multiply the number of liter by 1000.
• To convert milliliter to liter divide the number of milliliters by

1000.

Applying to New and Other Situations

A.Isulat ang katumbas na sukat sa milimetro.

1)3L

2)12 L

3)2L+ 1L

4)5L

5)8L

Evaluation

Basahin, unawain, at lutasin. Isulat sa sagutang papel.

1) Pag-aralan ang larawan.

Alin ang bibilhin mo para ikaw ay makatipid?

Magkano ang matitipid mo Mahalaga ba na tayo ay magtipid? Bakit?

2) Inutusan ka ng nanay mo na bumili ng 3 litrong gatas sa isang grocery store. Gatas na 500 mL na nasa bote lamang ang mabibili sa tindahan. Ano ang gagawinmo? Ilang bote ng gatas ang bibilhin mo?

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3) Kung ang isang bote ay nagkakahalaga ng PHP80, magkano ang halaga ng 6 na bote? Magkano ang sukli mo kung magbabayad ka ng PHP500

Home Activity

Sagutan sa sagutang papel ang sumusunod.

a. Ilang 200 mL tubig ang katumbas ng 8 L tubig?

b. Inutusan ka ng nanay mo na bumili ng 3 litrong mango juice. Sa grocery store, nakita mo ang iba’t ibang mango juice na nasa lata. Tingnan ang larawan sa ibaba. Alin sa mga ito ang bibilhin mo? Ipaliwanag.