We’re studying the above topic and here are some resources I found: (various grades from 3rd – 7th)
Prime and Composite Numbers
Prime Numbers Lesson Plan for Grades 3-4
Am I Prime? Lesson plan for Grade 7
Prime Numbers Lesson Plan (PDF) for grades 4-6
Prime and Composite Numbers lesson plan for middle school
link to printable version of the above lesson plan
The Prime Team, sixth grade lesson plan
Prime and Composite Numbers with the use of manipulatives
Cute activity using 100 chart. When student is finished crossing off numbers, only primes are left.
More than you probably ever want to know about prime numbers here. 🙂 Just thought my son would like the chart.
Prime Factorization and Factorization Trees
Why Learn Prime Factorization? How does it apply to the real world? (humorous and useful for those students who can’t focus on doing something they don’t know why they are learning it)
“Pretty Good Guide to Prime Factorization”
Lesson Plan on Prime Factorization and Factor Trees (PDF)
Seventh Grade Prime Factorization Lesson and practice (HTML)
Factoring Numbers Lesson from Purple Math
Modeling Prime Factorization Lesson
Prime and Composite Numbers/Prime Factorization lesson plan from lessonplanspage.com
I went through my NCDPI (learnnc.org–NC has some of the best education stuff from state education departments that I have seen on the net) printables (Week by Week Essentials) and pulled out related prime/composite, prime factorization problems for quizzes, practice and warmups:
Prime/Composite Number Warmups/Quiz Material/Practice
Write the primer numbers between 1 and 10
Write the prime numbers between 10 and 20
Write the prime numbers between 20 and 30
Write the prime numbers between 30 and 40
Write the primer numbers between 40 and 50
Sum of the first four prime numbers
What is the sum of the first eight prime numbers.
List the prime factors of 35
Can the sum of two prime numbers be a prime
List the prime numbers from 2 to 20
Largest prime factor of 100
Sum of the first five prime numbers
Give the prime factorization of 144.
Write the prime factorization of 1,408.
Give the prime factorization of 56.
Give the prime factorization of 375.
Write the prime factorization of 200.
Write the prime factorization of 162.
Write the prime factorization of 440.
Write the prime factorization of 600.
Write the prime factorization of 188.
Write the prime factorization of 48.
Give the prime factorization of 28.
Give the prime factorization of 39
Give the prime factorization of 78
Give the prime factorization of 114.
Give the prime factorization of 54.
Give the prime factorization of 500.
Give the prime factorization of 100.
Give the prime factorization of 90.
Give the prime factorization of 50.
Give the prime factorization of 16.
Give the prime factorization of 24.
Give the prime factorization of 84.
What is the sum of the first 3 prime numbers?
Write the prime factorization for 12.
Write the definition of a prime number
What is the only number that is neither primer or composite.
What can be said about the number 1?
What can be said about the number 2?
What can be said about any composite number?
What can be said about any prime number?
Prime Number Dice Roll a pair of dice and add. Is the
sum prime or composite? Suppose you had multiplied, would the product be prime or composite? Suppose you decide to play a game: one person scores a point for each prime number (obtained by either adding or multiplying) and the other person earns a point for each composite number he or she is able to obtain at a turn. Would this be a fair game? Why or
why not? (Note: I use two sets of numeral cards with digits 1-6 instead of dice)
Prime Numbers with the Hundred Board (Blackline
Master I – 76) In these hundred board activities students identify numbers less than 100 with only two factors, one and the number. These, of course, are prime and students can record these as such in their math journals.
There should be 25 numbers in this list of primes less than 100. All other positive numbers, except 1 which is neither prime nor composite, are composite. Ask students to imagine that they don’t have their list of primes and need to decide whether a given number is prime or composite. How might they approach this task? Would square tiles be useful? Would calculators be helpful? Allow students time to discuss this problem.
5 (squared) x 3 (squared) is the prime factorization for what number?
What is the largest prime factor of 200?
The digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 are
written on tiles and placed in a bag. Without
looking, Susan draws one tile, records the number,
replaces the tile, draws a second tile and records
that number. What is the probability that she will draw only one
Draw a spinner, using numbers less than 20, that satisfies the following conditions:
• the probability of spinning a prime number is 25%
Prime or composite?