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- Grade Range
- 5th - 8th
- Rating
Students play Sticks and Stones which is based on an Apache game and determine the likelihood of various moves and the average number of turns needed to win a game. Full Review »
- Grade Range
- 6th - 12th
- Rating
Students examine a five-hour analog clock and its mathematical properties. They investigate patterns and relationships that exist in 12-hour addition and multiplication clock tables. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students study the concept of modular arithmetic as it is applied to UPC and ISBN bar coding numbers. They examine further applications involving credit card numbers. Full Review »
- Grade Range
- 12th
- Rating
Students explore the concept of a mathematical proof. The lesson states the difficulty they have understanding concrete information. Students use complex numbers to identify different properties related to them. Full Review »
- Grade Range
- 2nd - 5th
- Rating
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills. Full Review »
- Grade Range
- 5th - 7th
- Rating
Students, working in pairs, are presented with the problem. They are asked to design modular houses using four cubic modules, all the same size, which touch each other on complete faces. They must draw each of their houses on isometric (triangular) dot paper. They then must work out construction costs for each home. Full Review »
- Grade Range
- 7th - 12th
- Rating
Students explore modular arithmetic involving base eight. They participate in an activity where society functions around the numbers one through eight. Students explain how life will operate with only these numbers. Full Review »
- Grade Range
- 9th - 11th
- Rating
Students explore modular arithmetic. They determine if two numbers are equivalent. Students explore how to add, subtract and multiply in this system. They identify when division has a meaning in a modular system. Full Review »
- Grade Range
- 8th - 10th
- Rating
Students brainstorm and discuss the concept of cryptography, the science of secrets in today's world and then focus on a system for sending secret messages used by Julius Caesar. They make a Caesar wheel assessing encrypting and decrypting coded messages. Full Review »
- Grade Range
- 6th - 12th
- Rating
Students determine which properties of real numbers are also true for modular arithmetic. They conjecture about patterns and other relationships that exist in the modulus tables and apply the modular arithmetic concept to everyday occurrences. Full Review »
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