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-
-McGraw-Hill website
-Math book
-Smart Board
-Base-ten 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 McGraw-Hill website and Smart Board
*Use questions from book on page 491-492 of teacher's edition*

D. Independent Practice-

1. On page 493, walk through numbers 7-9 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)-

Get out base 10 blocks?

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.

This Lesson Plan is available at (www.teacherjet.com)