Lesson Plan 2

Taba Inductive

Subject       : Mathematics

Level   : Grade 3

Topic             : Prime Numbers

Time    : 45 minutes

Class size         : 24 students


Data set that is made up of colorful flash cards with prime and composite numbers.

Instructional Objectives:

By the end of the class, students will be able to:

  1. Define prime numbers
  2. Classify prime numbers
  3. Label prime numbers


  1. Introduction

In reducing fractions, there is a basic knowledge you need to learn before you can    identify whether fractions are in the lowest terms or not. To know this, you need to learn how to differentiate between prime and composite numbers.

  1. Taba Inductive Method


              Teacher Activity           Student Activity
Phase 1 (Concept Formation)

“Let me divide you into 6 groups. Each group will be given a data set. Then I want you to group the data set into two groups. After that I want you to classify the data set and name each of the group you made. It’s okay to group another group that you think is not related to each and you can name them as nameless group.” Then I want you to think of one attribute of each group beside for being a number.”

Phase 2 (Interpretation)

“Now, I want you to write and discuss the similarities and differences of each group you have made.

 The groups that you are supposed to have are the prime and composite numbers. A prime number is a whole number greater than 1, whose only two whole-number factors are 1 and itself. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29. As we proceed in the set of natural numbers N = {1, 2, 3, …}, the primes become less and less frequent in general. Composite Number is a whole number that can be divided evenly by numbers other than 1 or itself. Example: 9 can be divided evenly by 3 (as well as 1 and 9), so 9 is a composite number. But 7 cannot be divided evenly (except by 1 and 7), so is NOT a composite number (it is a prime number).

Phase 3 (Application)

“Now, here are some other sets of numbers and I want you to label them prime or composite.”


students classify date set into 2 groups


name each group they made





discuss one attribute of each group







write the similarities and differences of each group they make


discuss among their group about the similarities and differences



label the given numbers either prime or composite number


            Numbers are infinite. You can extend as far as you want; as big as you can. However, in this topic, we can classify them into two groups– prime and composite. No matter how big the numbers are, they can always be classified as prime and composite. Identifying them will help you to reduce fractions effectively and quickly.


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