1. Topic


2. Content

Prime and Composite numbers 


3. Goals: Aims/Outcomes

1. Students will know that a prime number is a whole number with
exactly two factors: 1 and the number itself.
2. Students will know that a composite number is a whole number with
more than two factors.
3. Students can use factors to determine whether a number is prime
or composite 


4. Objectives

I can determine if a number is prime or composite 


5. Materials and Aids

McGrawHill website
Math book
Smart Board
Baseten blocks 


6. Procedures/Methods

A. Introduction
1. "Raise your hand if you have ever heard of prime or composite
numbers."
2. "For those of you who have heard of them, could you explain to
the class what they are?"
3. "Prime numbers are numbers that can be divided evenly only by 1
or itself.
And it must be a whole number greater than 1.
A composite number is a number that can be divided evenly by numbers
other than 1 or itself."
*Write definitions on board*
4. "So prime numbers can only be divided by 2 numbers: 1 and the number
itself (2, 3, 7, 11). Composite numbers can be divided by more than
2 numbers (4, 6, 10, 20)."
*Pick one example and write factors on board*
5. "Can anyone raise their hand and tell me a number that is neither
prime nor composite? (1)"
*Explain why 1 is neither* 


B. Development
1. Walk through different examples 7, 25, 18, and one of student's
choosing
*Show by using dots to represent different arrays* 


C. Practice
1. Walk through pages 491 and 492 together with students using McGrawHill
website and Smart Board
*Use questions from book on page 491492 of teacher's edition* 


D. Independent Practice
1. On page 493, walk through numbers 79 with students, and part
of number 19.
2. Have students complete the rest of the page on their own
3. Walk around and help students if everyone is struggling, stop
the class and do it together.
4. If they are getting it, have them complete page 494 as well. 


E. Accommodations (Differentiated Instruction)

F. Checking for understanding
Walk around class to see if students are understanding. If not,
stop everyone and do it together as a class. 


G. Closure
1. "Can someone raise their hand and tell me what a prime number
is? What about a composite number? What number is neither prime nor
composite?"
2. If page 493 was not completed, have students finish it for homework. 

