Lesson Plan in Math 6 (Addition of Similar Fractions)

Lesson Plan in Math 6 (Integrated with Science)

I. Objectives

a. Add similar fractions in simple and mixed form

b. Write the correct solution to the problem

c. Persevere in one’s endeavor

II. Subject Matter

A. Addition of Similar Fractions

B. BEC PELC II.H.4

C. chart, paper strips, chalkboard

D. Perseverance

III. Procedure

A. Preparatory Activities

1. Drill/Review

            Who invented the electric bulb? Match the fraction to its simplest form to know the answer.

1) 8/12 ___      2) 4/10 ___      3) 2/5___         4) 15/30 ___    5) 2/18 ___      6) 12/24 ___

I- 2/5                E- 2/3               N- 1/2              O-1/9               D- 2/5              S-1/2

2. Motivation

             Ask: Who is Thomas Edison? What are the thing that he invented?

B. Developmental Activities

1. Presentation

Present the following problem:

             Thomas Alva Edison is an inventor.  He spends 3 1/8 hours in the morning, 2 3/8 hours in the afternoon and 5 5/8 hours at night working in his laboratory. How many hours does Thomas Edison spend in his laboratory?

Discuss the problem to the pupils using guide questions.

Guide the pupils in arriving to the correct answer.

Let pupils discover the process of adding similar fractions.

Ask: Do you know that Thomas Edison invented a lot of things that we use today? What attitude do you think did he have to invent new things? Do you think he was always successful?

Share Edison’s famous quote: “A genius is 10% made of inspiration and 90% made of perspiration.”

2. Exercise

Pair-Share Activity. Find a partner and add the series of fractions.

a) 2/9 + 3 + 4/9 + 1/9 + 2 1/9 + 1 + 3/9

b) 2 + 4 + 1/10 + 3/10 + 5/10 + 3 2/10 + 2 + 4/10

c) 1 + 4/7 + 3 + 0 + 1 2/7 + 3/7 + 2 + 8/7

d) 8 + 2/6 + 1/6 + 3 + 2/6 + 2 + 4/6 + 1/6

3. Generalization

            How do we add similar fractions in simple form? in mixed form?

C. Application  

            Thomas Edison wanted to invent a new machine. Help him ass the materials he needed:

1) 2/4 m + 3/4 m of rope

2) 1 1/14 ml + 3 3/14 ml + 8 9/14 ml of He

3) 2/5 kg + 3 3/5 kg + 5 5/5 kg of nails

4) 1/10 tsp + 2/10 tsp + 12/10 tsp + 1 3/10 tsp of sand

5) 3/15 cup + 8/15 cup + 2 cups of acetic acid

IV. Evaluation

Give the sum of the following fractions:

1) 2/5 + 2 + 4/5

2) 6/11 + 7/11 + 8/11 + 9/11

3) 2 + 3/15 + 3 + 4/15

Read and write the correct solution

4) Alexander Graham Bell, the inventor of the telephone needed the 1/8 m of copper wire; 3 4/8 m of silver wire and 5 m of tin wire. How many meters of wire did he need in all?

5)  The Wright brothers used fuel to test their newly-made air vehicle. They used 9 3/7 liters of fuel in the first try, 11 6/7 liters in the second try and 8 1/7 liters in the third try. How many liters of fuel did the brothers use in all?

V. Assignment

             What is the sum of 1/15, 2/15, 3/15, 4/15 … 15/15?