Detailed Lesson Plan

I. OBJECTIVES

At the end of a 45-minute period, the grade four pupils will be able to:

1. Add and subtract fractions with the same denominators,

2. Add and subtract fractions with dissimilar denominators,

3. Add and subtract mixed numbers with similar denominators, and

4. Add and subtract mixed numbers with dissimilar denominators with 75% proficiency level.

II. SUBJECT MATTER

ADDING AND SUBTRACTING OF FRACTIONS

A. References

Liking Mathematics in the Grade School: Textbook in Mathematics for Grade-Four by Prepotente et.al.

21st Century Mathematics (6) by Villame et.al.

B. Materials

Power point presentation, visual aids

C. Ideas

To add/subtract fractions with similar denominators, we add/subtract the numerator and write the sum/difference over the same denominator.

To add/subtract fractions with dissimilar denominators, first find the smallest equivalent fractions by using the least common multiple (LCD) to rename the dissimilar fractions into similar fractions and then proceed as in adding/subtracting fractions with the same denominator.

To add/subtract mixed numbers with similar denominators, we add/subtract the whole numbers, then the numerators and retain the denominator.

To add/subtract mixed numbers with dissimilar denominators, change dissimilar fractions to similar fractions. Add/subtract the whole numbers, and then the numerators and copy the denominator.

D. Processes

Identifying, adding, subtracting

E. Value

Small parts are necessary to make-up a whole.

III. PROCEDURE

A. Pre-assessment

Prayer

Checking of attendance

Review of the past lesson

B. Motivation

Have the children sitting in a circle. TEACHER INSTRUCTION: I Bounce the ball to one of your classmate . Then choose another child and bounce the ball over to