Republic of the Philippines
Department of Education
REGION I
SCHOOLS DIVISION OFFICE I PANGASINAN
NALSIAN-TOMLING NATIONAL HIGH SCHOOL
NALSIAN NORTE, MALASIQUI, PANGASINAN
A Semi-Detailed Lesson Plan
In Mathematics 7
Principal Roots and its
Nature (Rational or Irrational)
Prepared by:
Louie Jay U. Ursua
(Teacher 1)
I.
Objectives
At the end of a 60-minute discussion, Grade 7 students should be able to:
1. define Principal Root;
2. describe principal roots and tells whether they are rational or irrational; and
3. solve the equivalent value of a radical.
II.
Subject Matter
A. Topic: Principal Roots and its Nature (Rational or Irrational)
B. Materials: Chalkboard, Calculator, and Powerpoint Presentation
C. References: Oronce, O., & Mendoza, M. (2015). E-MATH 7, Revised Edition. Manila: Rex
Book Store, Inc. pp. 89-91
D. Values Integration: Accuracy
III.
Procedure
A. Preliminary Activity
1. Prayer
2. Classroom management
3. Checking of Attendance
B. Review
The teacher will ask the students about their previous lesson.
C. Motivation
“Four Pics One Word”
The students will guess the words based from the four pictures presented.
D. Presentation and Development of the Lesson
The teacher will discuss the following:





Parts of radical expression
What is Principal Root
What is Perfect Square
Difference between Rational and Irrational Numbers
How to solve the equivalent value of a radical
E. Generalization
The teacher will as the students to sum up their lesson.
IV.
Evaluation
Solve the Equivalent Value of the following and determine whether the Principal Root of a
number is Rational or Irrational.
V.
_______________ 1. √49
_______________ 6. √121
_______________ 2. √3
_______________ 7. √64
_______________ 3. √50
_______________ 8. √12
_______________ 4. √26
_______________ 9. √144
_______________ 5. √81
_______________ 10. √21
25
6
Assignment
Consider the illustration below as a Land Area.
A. Draw Perfect Square lot as many as you can.
B. List down the Area and the length of each of the square lot you have drawn. You may use
separate paper for more answers.
Area (sq. units)
Length (unit)