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number theory

Learn more about number theory

Crossed up hundreds board
Students will experience patterns and problem solving on the Hundreds Board.
Format: lesson plan (grade 3 Mathematics)
By Karen Bartlett.
Grassroots Science Museums Collaborative
Grassroots museums annually serve millions of citizens through general visitation, teacher training and special programs. Programs include both onsite and offsite presentations and reach students in every North Carolina school district.
Format: article/field trip opportunity
So many choices, so little time
This lesson will introduce students to Theoretical and Experimental Probability using Crazy Choices and Spinner, a resource of Shodor Education Foundation, Inc. Permission has been granted for the use of the materials as part of the workshop Interactivate Your Bored Math Students.
Format: lesson plan (grade 6 Mathematics)
By Beth Jorgensen.
Civil War casualties
In North Carolina in the Civil War and Reconstruction, page 4.14
Historians estimate that about 620,000 Americans died in the Civil War -- almost as many as have died in all other U.S. wars combined. This article explains why.
Format: article
By David Walbert.
Fair or unfair: Introduction to probability
This lesson introduces the idea of probability theory. Students will use everyday experiences and intuitive understanding to gain an understanding of probability.

This lesson uses resources of Shodor Education Foundation, Inc. Permission has been granted for the use of the materials as part of the workshop-"Interactivate Your Bored Math Students."
Format: lesson plan (grade 3 Mathematics)
By Bonnie Boaz.

Find all 51 resources in our collection.

The study of the relationships and properties of integers, including prime numbers, sequences, etc.

Additional information

Number theory includes many open problems understandable by non-mathematicians and underlies much of recreational mathematics.

Examples and resources

See The Mathematical Atlas for a thorough discussion of Number Theory, including its various branches, history, and subfields. Wikipedia also provides a thorough definition with a discussion of the history of number theory.