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### We found 270 resources with the concept prime numbers

Lesson Planet

#### Prime and Composite

Factoring is an essential component in algebra, and this worksheet prepares learners with a quick reference guide and examples. After they find all the factors, they decipher whether the number is prime or composite.

Lesson Planet

#### K-5 Mathematics Module: Number and Number Sense

Reinforce number sense with a collection of math lessons for kindergarteners through fifth graders. Young mathematicians take part in hands-on activities, learning games, and complete skills-based worksheets to enhance proficiency in...

Lesson Planet

#### Unit 1 Math Vocabulary Cards (Grade 6)

Reinforce math vocabulary with a set of 52 flash cards. Two types of cards make a set; a word card printed in bold lettering, and a definition card equipped with a labeled example. Terms include algebraic expression, prime number,...

Lesson Planet

#### Assessment For The California Mathematics Standards Grade 4

Have scholars show what they know with a 20-page assessment aligned to the California State Standards. The test covers concepts such as large and whole numbers, all four mathematical operations, fractions, decimals, geometric figures,...

Lesson Planet

#### Unit 4 Math Vocabulary Cards (Grade 5)

Common denominators, factors, and rounding are a few of the terms in a set of flash cards designed to reinforce math vocabulary. Forty-two cards offer a bold-faced vocabulary word or a corresponding definition alongside an example with...

Lesson Planet

#### Grade 5 Supplement Set A2 – Number and Operations: Primes, Composites and Common Factors

Incorporate riddles into your math lesson by having students make tree factors and determine if the number is a prime or composite. They will also use other clues to find the answer to the riddle while sharpening their multiplication...

Lesson Planet

#### Optical Illusion

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.

Lesson Planet

#### Eratosthenes: Geographer and Mathematician

Mathematicians can be famous, too! Introduce your class to Eratosthenes with a reading passage. After they complete the passage, learners respond to five questions, some of which require opinions and others reading comprehension skills.

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#### Twelve a Dozen

Take your students on a mathematical adventure with this entertaining yet educational video game. Perfect for developing children's fluency with the four basic operations, this is a must-have resource for upper-elementary teachers.

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#### What's My Rule?

A collection of 34 math worksheets will be a great addition to any lesson in your curriculum. Third and fourth graders work on fractions, mean, median, and mode, measurement, and several more skills as building blocks to more advanced...

Lesson Planet

#### Saxon Math Intermediate 5 - Student Edition

Expand your resource library with this collection of Saxon math materials. Covering a wide range of topics from basic arithmetic and place value, to converting between fractions, decimals, and percents, these example problems and skills...

Lesson Planet

#### Mathematical Treasure Hunt

The hunt is on! Young mathematicians follow clues and complete a series of ten math puzzles as they try to crack Dr. Integer's code and find the location of his hidden treasure.

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#### Blank Multiplication Chart

Help young mathematicians master their multiplication facts with this times table template. Including the factors 1-12, this resource is an ideal supplement for teaching about multiplicaiton in the upper-elementary grade levels.

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#### The Sieve of Eratosthenes

Employing an over 2,000 year old method for determining prime numbers, young mathematicians deepen their number sense in a lesson plan on factors and multiples. Using the included 100 chart and following the given steps, students...

Lesson Planet

#### Number Riddles

Challenge the deductive reasoning skills of young mathematicians with this series of number riddles. Requiring knowledge about place value, prime and composite numbers, factors, and multiples these puzzles are a great resource for...

Lesson Planet

#### Prime Numbers

Remembering which numbers are prime can be a snap if you have a graphic to help you out. As this printable 8x11 image will tell you, a prime is a number which can only be divided by one and itself. Number 1-100 are enclosed in pretty...

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#### Study Jams! Prime Factorization

Deepen the number sense of young mathematicians by exploring the process of prime factorization. Follow along with this step-by-step presentation that explains how factor trees are used to break a composite number down into its prime...

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#### Study Jams! Prime & Composite Numbers

Prime or composite, that is the question. Teach your class how to find the answer with this step-by-step presentation that defines and provides examples of each type of number. When addressing larger numbers, divisibility rules are...

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#### Study Jams! Greatest Common Factor

When one method isn't enough to teach GCF, try two! This interactive webpage introduces factors and the prime factor tree to find the greatest common factor of two numbers. After the lesson, have learners click to try the two examples...

Lesson Planet

#### Numbers in a Multiplication Table

Identifying patterns is a crucial skill for all mathematicians, young and old. Explore the multiplication table with your class, using patterns and symmetry to teach about square numbers, prime numbers, and the commutative and identity...

Lesson Planet

#### What's a Prime Number?

What is a prime number? Is zero a prime number? Is one a prime number? No?! Is two a prime number? Yes. So what is the definition of a prime number? A prime number is a number that can only be divided by 1 and itself. Watch this short...

Lesson Planet

#### How Do You Find the Prime Factorization of a Number Using a Tree?

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...

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#### How Do You Factor a Greatest Common Factor Out of an Expression?

What is the greatest common factor of two terms in an expression? First prime factor each of the terms. Then find the factors that they have in common. Multiply if needed. That is how to find the greatest common factor. Watch the video...

Lesson Planet

#### What's Another Definition for Prime and Composite Numbers?

Simply put, a prime number is a number that is divisible only by one and itself. All other numbers are composite.