Prime Numbers Teacher Resources

Learners investigate prime and composite numbers. They use a number chart and cross out multiples of 2,3,5 etc. up to 100. Pupils fold pieces of masking tape around pennies and label them with composite numbers, then fold masking tape...

Master composite and prime numbers with this fast-moving game. Using your sword, slice those composite numbers and watch them break up into factors. Slice again if those factors are composite. However, watch out for prime numbers,...

In this online interactive math skills learning exercise, students solve 10 multiple choice math problems regarding factors and prime numbers. Students may submit their answers to be scored.

Teach the joys of factoring and introduce prime and square numbers. Upper elementary learners are introduced to these concepts through complete definitions, examples, and practice problems. A variety of strategies, such as factor trees...

Young math whizzes determine if a number is prime or composite. They use counters to participate in activities that show prime and composite numbers.

Older elementary students will appreciate how clearly Sal explains how to find the prime factorization of 75. He shows the complete process, taking note of numbers that are, and are not primes, and why.

In this finding prime numbers practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.

Students discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite numbers.

In this SAT worksheet, students solve 10 multiple choice questions.  Students find ratios, integer relationships, prime numbers, etc.

Finding factors is an integral skill on the road to fractions and algebra. Scholars write down a factor list for nine numbers up to 30. Next, they examine provided lists and circle the numbers that are factors of eight more numbers, also...

Review the characteristics of prime numbers. The narrator begins by defining factors and then goes on to explore the definition of prime numbers. This is a quick and easy way to review prime numbers.

Finding factors requires practice and a logical system, so help scholars develop this skill with these problems. They write out the factor list for 9 two-digit numbers and then circle the factors from a list for four more numbers....

Students differentiate between prime and composite numbers. In this algebra lesson, students define the terminology and investigate the contributions made by Eratosthenes and Euclid as it relates to prime numbers. Students apply the...

Students determine factors of numbers to 100 and identify prime factors; students differentiate prime and composite numbers by the factors of the numbers.

How many prime numbers are there between 1 and 100? By using a prime time resource, your scholars should be able to answer this question. Using arrays, they determine if numbers are prime or composite, and then write a prime...

Give the class a prime example of using prime numbers. After reviewing prime factorization of numbers with the video, pupils use their knowledge to determine greatest common factors and least common multiples in the learning exercise....

In this factor trees worksheet, students make factor trees for 2 through 4 digit numbers. Students complete 20 factor trees for these numbers.

Reinforce the concept of factors, multiples, and prime numbers with a 16-problem practice instructional activity. Eight pages offer a variety of problem solving opportunities with clear objectives and tips for...

Number theory gets a workout in an activity that asks individuals to identify and color code the prime numbers and the composite numbers in the provided graphic.

Middle and high schoolers review topics covered Pre-Algebra. They solve problems questions dealing with exponents, square roots and absolute value. They use the rules of divisibility and identify prime numbers. This two-page on-line...

A factor tree? What's a factor tree? A tree of factors? A factor tree is a method use to do the prime factorization of an integer. It's not complicated. Watch the teacher as she explains the steps and shows how to write the answer as a...

Prime and composite numbers are the focus of this mathematics lesson. In it, learners practice techniques for identifying these two types of numbers. They utilize the Inspiration program to complete a task that is clearly explained, and...

Learners examine the concept of finding the greatest common factor. They complete number of activities as they practice identifying prime and composite numbers. Pupils apply rules of divisibility and find the greatest common factor while...

Students work with prime numbers. In this prime factorization lesson plan, students review writing numbers in their prime factorization form and solve multiple problems.