**Lesson: Electric and Water Consumption**

**File: Interactive Powerpoint**

**Grade: 5-6**

Slide 1:

Objectives:

1. Read and interpret electric meter and water meter

2. Solve for the electric and water consumptions

Slide 2:

What electrical appliances do you have at home?

How much do your parents pay for your monthly electric bill?

How would you help lessen your electric consumption?

Slide 3:

Move your hand clockwise.

Now, move your hand counter clockwise.

Slide 4: Read and Interpret Electric Meter using interactive models

Slide 5: Sample Problem:

The Matipid family monitors closely their electric consumption. This month, the reading on their dial is 5634, last month it was 5554. How many Kwh was used?

Slide 6:

a) What are given?

b) How do you find the answer?

c) What is the answer?

Slide 7:

To find the electric consumption:

Present reading minus previous reading

Slide 8:

Study the table and compute the Kwh used.

Slide 9:

1) Which household consumed the most? the least?

2) Which two household consumed almost the same kwh? What can you say about their bill?

3) As a member of the household, how can you lower your electric bill?

4) Why is it important to use electricity wisely?

Slide 10:

Generalization

How do the dials of the electric meter move?

How do you read the dials of a meter?

How do you find the electric consumption?

Slide 11:

Let’s Apply

Draw a dial to show the readings.

5035

5148

6524

6614

7035

Get the difference of:

1 and 2

3 and 4

4 and 5

Slide 12:

Use this dials to get the previous and present reading. Then, solve for the electric consumption.

Slide 13:

How is the volume of water consumption computed?

To find the electric consumption: Present reading minus previous reading

Slide 14:

The reading is 420 m3.

473 represents liters.

Do not read these numbers

*(Exercises are included in the Presentation)*