GLE 0406.2.3 Identify prime and composite numbers.

Main Goal for Today:Standard Addressed: GLE 0406.2.3 Identify prime and composite

numbers.

But…. What are Prime and Composite Numbers?

Identify Prime and Composite NumbersPrime Numbers- A whole number greater than 1

that has exactly two factors, 1 and itself.Composite Numbers- A whole number greater

than 1 that has more than two factors. Look @ these Numbers Factors2 1, 2 3 1, 34 1, 2, 45 1, 56 1, 2, 3, 6

Online Fun!!!!Brain Pophttp://www.brainpop.com/math/

numbersandoperations/primenumbers/quiz/

Bring the number to life!Items in use: Connecting cubes and white

boardsShow me the ways one could arrange the

connecting cubes (arrays) for the number 4 ? Then, write all the possible factors for this number on the whiteboards. Classify prime or composite. Why?

numbers 1-10

Hundreds Chart We are Greek Mathematicians and we are on

the hunt for prime numbers!Instructions: put a triangle around the number that is

neither prime nor composite, circle the Prime Numbers mark out the Composite Numbers 1-100.

*There are 25 prime number in total between 1-100.

Where do you belong? Card SortComposite vs. PrimeWhy do you

belong there?

Hand Transition Activity

Math Games: Prime and Composite Numbers- Fruit Shoot

Share your thinking while you work!Tic Tac Toe Game …Lets take a lookPartners of 2 (neighbor)Two sided (7-8 minutes a side)Foam squares and diceMay use 100’s chart as guideReview Instructions before start!

Answer and you shall see prime and composite number are easy!How are composite numbers and prime numbers

different?Give an example of an odd number that is

composite?(whiteboards)What is the only even prime number? (whiteboards)Roger has 47 cars. Can he group them more than

two ways?Why is 1 neither prime nor composite?What’s another way in math that we could use prime and

composite numbers other that just identifying and classifying them.

Think- Pair- ShareKyle has 17 toy trucks. How many ways can

the trucks be placed in equal groups? 5 ways2 ways3 ways

Marla says that every number in the nineties is composite. Jackie says that one number in the nineties is prime. Who is correct? Explain.

The end….What was the main goal for today’s learning?

Students will be able to……

What’s the one thing that stuck out to you the most?Exit Ticket

http://mathforum.org/library/drmath/view/57182.html