Exponent

LC: Give the meaning of exponent and base.
Evaluate number involving exponents.

I. Learning Objectives: After the activity, pupils shall be able to:
Eoc: give the meaning of exponent and base.
Eop: read expressions involving exponents.
Eop: find the value of a number involving exponents.
Eoa. show enthusiasm during the activity.

II. Learning Content:
A. Topic: Exponents
B. Concept: An exponent tells how many times the base number n is
multiplied to itself. For ex. In the exponential notation 23, 2 is
the base and 3 is the exponent and 23 is 2x2x2 = 8
C. Skill: reading expressions involving exponents, writing numbers in exponential
form, finding the value of a number involving exponents.
D. Values: Enthusiasm leads to success in studies.
E. Material: bingo cards
F. Resources: Apistar, E. (2005), Soaring 21st Century, pp. 23
Glencoe, Mathematics Applications and Connections, pp.
Riel, T. (2009) Number Smart, pp. 46

III. Learning Experience:
Classroom Routine - checking of attendance, ID, etc.

A. Introduction:
Motivation: English Integration
· What does the word “abbreviation mean”?
· Give the abbreviation of the following words.
a. Engineer
b. Doctor
c. Captain
d. President
e. Boulevard

Show a multiplication sentence.

5 x 5 x 5 x 5; 2 x 2 x 2 x 2 x 2x 2

B. Interaction:
· How do you call the digit 5? Digit 2?
· How many times does the digit 5 use as a factor?
· What is the shortest way in writing repeated multiplication?
· How do you call 5? 4?
· How do you define base? exponent?
· How do you find the value of 54 ?


C. Integration:
1. Generalization:
What is an exponent?
How do we find the value of a number involving exponent?


2. Valuing: How do you show your enthusiasm towards your studies?


3. Evaluation:
I. Write each product using exponents.
a. 2 x 2 x 2 x 2 x 2 x 2
b. m x m x m x m x m x m
c. 3 x 3 x 5 x 5 x 5
d. n x n x n x m x m
e. r x r x r x r x r

II. Write each in factored form.
a. 47
b. 105
c. h6
d. 23

III. Find the value.
a. 35
b. 22 x 32
c. 72
d. 22 + 23

IV. Reflection Log:
How can we apply our knowledge of exponents to our daily life?

IV. Assignment: Drill Notebook
1. Write a paragraph explaining how to compute 54?
2. Evaluate 3 cubed.
3. What is the value of x3 + y2 if x=3 and y=6?