Number Theory Teacher Resources

Find Number Theory educational ideas and activities

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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.
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 topics as well.
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.
Students secure information online using cryptography. In this algebra lesson, students use RSA technology to encrypt information on the internet. They use modular reduction of natural numbers to understand prime number theory.
Students will use number theory skills to investigate when certain planets are aligned. Students review the order of the planets from the sun and use this data to create a human solar system. They are assigned the name of a planet, and physically demonstr
In this math worksheet, students explore properties of the number line, both standard and imaginary. This thorough worksheet has many problems for the students to solve, and includes an answer sheet.
In this word search worksheet, students locate words related to number theory. The word list includes composite number, definite, and factors.
In this algebra worksheet, 9th graders define rational and irrational numbers and answer questions about properties of real numbers. There are 38 questions on this test.
Students study the Maya culture and their achievements in mathematics, how bacteria grow exponentially, use rational numbers to convert back and forth between Celsius and degrees Fahrenheit, how some architectural designs are examples of logarithmic spirals, how complex numbers help express electrical concepts, etc... For this lesson, students watch videos and research how the Maya culture helped develop mathematic understanding.
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.
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.
For this fractions vocabulary worksheet, students match a set of 15 number theory and fraction vocabulary words with their definitions. Answers are included on page 2.
In this number theory and fractions learning exercise, students search for words representing number theory and fractions in a word search. Students search for 15 words.
In this number puzzles instructional activity, middle schoolers solve problems by figuring out which number to substitute for each of the letters in the puzzle. The first 8 puzzles feature two or more words added and subtracted from each other to form another word. The final set of 8 problems features the use of random symbols representing the numbers in addition and subtraction problems. Students are encouraged to create their own problems.
In this number theory worksheet, students complete a total of 13 problems, finding multiples, LCM and solving 1 word problem. 
Students explore the concept of probability and number theory. In this probability and number theory lesson plan, students play an on-line game where they roll two dice and move that many spaces. Students make tables of the number of ways a students can get a particular outcome. Students use trees to organize their data.
Students explore the Mayan culture’s achievements in mathematics.  In this secondary mathematics lesson, students investigate the Mayan calendar and convert from Mayan numbers to decimal numbers and vice versa.  Students add, subtract, multiply and divide in Mayan arithmetic. 
Who doesn't like to eat? Use food to explore the concept of fractions and how to multiply and divide fractions. In small groups they plan a sugar potluck that involves converting a recipe to produce enough dessert treats to feed the entire class. Math learners calculate the amount of ingredients for the entire project and for each individual recipe, make their recipe, and share it with the class.
In this complex numbers activity, students simplify, plot, iterate, and state bounded or bounded for complex numbers in nine problems.  The solutions are provided.
Second graders create Mystery Numbers. They give the class clues about the name, value, and multiples of the digits which make up the number.

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Number Theory