# Number Theory Teacher Resources

Find Number Theory lesson plans and worksheets
Showing 1 - 24 of 89 resources
Lesson Planet

#### Number Theory: Modulus Math

For Students 8th - 11th
Practice the techniques associated with number theory. This 5-page worksheet has many different types of problems for the students to solve and is a great component for any number theory unit8.
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#### Number Theory

For Teachers 8th - 12th
Learners explore the concept of number theory. They discuss an assortment of number theory topics such as prime numbers, composite numbers, GCF, modular arithmetic, and others in a lecture style discussion. Pupils view videos about these...
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#### Number Theory Unit Word Search

For Students 6th - 7th
In this word search worksheet, students locate words related to number theory. The word list includes composite number, definite, and factors.
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#### Number theory and fractions word search

For Students 4th - 6th
In this number theory and fractions worksheet, students search for words representing number theory and fractions in a word search. Students search for 15 words.
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#### Number Theory Practice

For Students 4th - 5th
For this number theory worksheet, students complete a total of 13 problems, finding multiples, LCM and solving 1 word problem.
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#### Number Theory

For Students 6th - 7th
In this number theory worksheet, students solve and complete 14 different problems that are related to number theory. First, they determine if a number to a particular power is the same as stating the two numbers times each other and...
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#### Number Theory Worksheet 2: The Sieve of Eratosthenes

For Students 4th - 6th
in this number theory worksheet, students use the Sieve of Eratosthenes to find all primes up to the number 100. Students follow the directions to circle primes and multiples on the hundred chart.
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#### AT-Home Practice: Number Theory

For Students 4th - 6th
For this number theory worksheet, learners complete a set of 22 problems covering GCD, LCM and prime factorization. Students then play a "family fun" game based on LCM.
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#### The Language of Sets and Set Notation

For Teachers 9th - 12th Standards
The basics of number theory and set notation are explained in a highly approachable way in a self-contained lesson and worksheet. Introducing the vocabulary and concepts from ground zero and building to more complex ideas of subsets and...
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Lesson Planet

#### The Mathematical Secrets of Pascal’s Triangle

For Students 7th - 12th Standards
This modern animation and discussion of the ancient secrets of Pascal's triangle manages to be topical, engaging, and mathematically deep all at the same time. A great introduction to the power of number theory across multiple math...
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#### Number Theory and Fractions Vocabulary Crossword

For Students 5th - 6th
In this math crossword, students use a set of clues and 15 words about number theory and fractions to complete a crossword puzzle. A reference web site is given for additional activities.
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#### Number Theory and Fractions Vocabulary

For Students 4th - 6th
In this fractions vocabulary worksheet, learners match a set of 15 number theory and fraction vocabulary words with their definitions. Answers are included on page 2.
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#### Counting Divisors

For Students 4th - 6th
In this counting divisors worksheet, students examine and calculate how to make a number theory associated with divisors. Students complete a table to discover how exponents can be used to determine the number of divisors for any number.
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#### Number Theory

For Students 10th - 11th
In this algebra worksheet, students develop patterns and formulas to solve sequences. They apply the Number Theory to each problem. There is 1 question.
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#### Optical Illusion

For Students 3rd - 6th
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.
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#### Proof

For Students 9th - 12th Standards
Scholars learn how to write number theory proofs by viewing a video reviewing techniques for proofs on divisibility, parity, and consecutive integers. They then write proofs for a handful of conjectures on a worksheet.
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#### From Probability to Combinatorics and Number Theory

For Teachers 7th - 10th Standards
What middle schooler does not enjoy an occasional online game? In this lesson plan play, you will find embedded links to an online probability game, and informative pages about how division is used in probability, the concept of tree...
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#### Mental Math

For Students 4th - 6th
In this mental math worksheet, students complete 6 different sections in which they use mental math to solve problems. The first 3 sections consist of 45 subtraction, division and addition problems. The next 3 sections consist of 28...
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#### Number Theory - Week 12

For Teachers 12th - Higher Ed
In this number theory worksheet, students study integers and their properties. They explore the Fibonacci Sequence and approximate irrational numbers. This two-page worksheet contains eight problems.
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#### Chalkboard Challenge: 5th Grade Math Review

For Teachers 4th - 5th
This math review PowerPoint engages fifth grade students in an interactive review of math concepts. This review game includes questions on numeration, data interpretation and number theory. This is in a "Jeopardy" style format.
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#### Number Theory: The Sieve of Eratosthenes

For Students 4th - 6th
For this number theory worksheet, students read about The Sieve of Eratosthenes and follow a set of directions to complete a prime number activity and answer 4 related questions.
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#### Math Topic: Number Theory

For Teachers 6th - 7th
Students participate in a chain link game to improve their math skills with factors, multiples, primes, and composites. In this math game lesson, students review the math concepts for the game by writing definitions for the topics....
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#### Divisibility Rules Using Scientific Calculators

For Teachers 5th - 8th Standards
Young learners apply divisibility rules to determine if a number is a factor of another number. They discuss what numbers are factors of another number and identify patterns using divisibility rules.
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#### Number Theory: Numbers and Geometry

For Students 9th - 12th
In this math activity, students explore properties of the number line, both standard and imaginary. This thorough activity has many problems for the students to solve, and includes an answer sheet.