by Kirk Kroll 12 years ago
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"In general, the number theory is the study of the characteristics of and relationships involving the natural numbers" (O'Daffer, et al, 2008).
This purpose of this mindmap is to serve as a reference tool to K-8 educators on the topic of number theory. This map includes a number of resources including key definitions, practice worksheets, learning games, and videos.
Fun song and video that explains how to use factor trees.
Video demonstrates the concept of highest common factor and lowest common multiple using the same numbers in the example for clear domonstration.
Video shows how to find factors of a given number, using a "factor bug".
Side by Side Factors
The object is to rearrange the seven numbers in a row, so that all the numbers which are not relatively prime are separated by one or more other numbers.
Bingo
The Bingo game focus finding factors of numbers.
Divisibility and Factors
This link brings you to a website that offers a series of problems on divisibility and factors. Answers are also provided.
Factoring and prime numbers
This link brings you to a website that offers a series of example problems on factoring and prime numbers. Answers are also provided.
This link brings you to a page that defines what divisibility means and also provides examples.
This link brings you to a page that defines what a multiple is. This link also provides examples of multiples.
This link brings you to a page that defines what a factor is. This link also provides examples of factors.
This is a video that further explains the difference between prime numbers and composite numbers.
Video and song that helps the viewer understand what a prime number is.
Jeopardy
Factors and Multiples Jeopardy game covers concepts such as factors, multiples, prime factorization, GCF, and LCM.
Fruit Shoot
Link to interactive game to help players refine their skills in identifying prime numbers and composite numbers.
Prime Factorization (Multiple Worksheets)
Website allows you to create multiple worksheets on prime factorization. Answer key provided.
Greatest Common Factor
Worksheet of math problems on greatest common factor. Answer key provided.
Least Common Multiple
Worksheet of math problems on least common multiple. Answer key provided.
Link to website to define least common multiple and provides examples.
Link to website that explains the Euclidean algorithm.
Link to website to define greatest common factor and provides examples.
Link to website to define prime factorization and provides examples.
Link to website to define composite numbers and provides examples.
Link brings you to a site that defines prime numbers. It also provides a chart of all prime numbers up to 1000.
