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Results 1 - 10 of 292:	Return to Mathematics
Discipline(s): Mathematics Ohio Focus Resources Only

Outel Semiconductor: Recruiting Circuit

	ORC# 1213

RESOURCE INFORMATION
RESOURCE URL: http://www.hsor.org/modules.cfm?name=Outel_Semiconductor
RESOURCE TYPE: Instructional Resource -- Best Practice
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 8 - 12
PROFESSIONAL COMMENTARY: Students explore a variation of the traveling salesman problem based on cost: What is the cheapest path through a network that will hit all nodes and return to the starting point? Activity sheets guide students through a brute-force approach and then a nearest-neighbor algorithm to find the cheapest route for a college recruiter to follow in visiting several cities. Students discover that the brute-force method always provides the optimal solution but is too inefficient to use in most applications....
CAREER FIELDS: Construction Technologies, Finance, Hospitality & Tourism, Manufacturing Technologies, Transportation Systems, General Career Skills
PROJECTS: Standards First
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Congruent Triangles--Is This Enough Information?

	ORC# 6043

RESOURCE INFORMATION
RESOURCE URL: http://www.learningpt.org/pdfs/mscLessonPlans/dotson.pdf
RESOURCE TYPE: Instructional Resource -- Promising Practice
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grade 7
PROFESSIONAL COMMENTARY: Students explore triangle congruence conditions as they work to solve a real-world problem. They use Geometer's Sketchpad to apply congruence criteria....
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Classic Middle-Grades Problems for the Classroom

	ORC# 1157

RESOURCE INFORMATION
RESOURCE URL: http://illuminations.nctm.org/index_d.aspx?id=264
RESOURCE TYPE: Instructional Resource -- Best Practice
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 5 - 8
PROFESSIONAL COMMENTARY: This site focuses on the genre of problems in which successive fractional parts of a set are removed, and the size of the original set is determined from the final remainder. Four ways of solving such problems are illustrated and discussed....
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Knights and Ladies of the Roundtable

	ORC# 9722

RESOURCE INFORMATION
RESOURCE URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-K...
RESOURCE TYPE: Rich Problem, Inquiry, or Exploration
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 8 - 10
PROFESSIONAL COMMENTARY: A round table seats six. Three boys and three girls must be seated around it so that boys and girls alternate....
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License Plates

	ORC# 9723

RESOURCE INFORMATION
RESOURCE URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-L...
RESOURCE TYPE: Rich Problem, Inquiry, or Exploration
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 8 - 10
PROFESSIONAL COMMENTARY: How many license plates can you make if they are each six digits long? This question opens an investigation into permutations. Variations on the question are offered (including solutions) and a final, more complex problem extends the challenge....
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Madrigal Singing at Choir Practice

	ORC# 9725

RESOURCE INFORMATION
RESOURCE URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-M...
RESOURCE TYPE: Rich Problem, Inquiry, or Exploration
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 8 - 10
PROFESSIONAL COMMENTARY: In your choir there are 6 singers who are boys and 6 who are girls. How many ways are there to choose 4 boys and 4 girls to form a smaller group to sing madrigals? Extensions of the problem and a complete discussion of the underlying mathematical ideas are included....
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How to Fix an Unfair Game

	ORC# 9718

RESOURCE INFORMATION
RESOURCE URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-H...
RESOURCE TYPE: Rich Problem, Inquiry, or Exploration
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 6 - 12
PROFESSIONAL COMMENTARY: Michelle and Jim wager on picking colored chips out of a bag. In the bag are two black chips and one red one....
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Monty Hall

	ORC# 9731

RESOURCE INFORMATION
RESOURCE URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-M...
RESOURCE TYPE: Rich Problem, Inquiry, or Exploration
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 9 - 12
PROFESSIONAL COMMENTARY: Here is the classic Monty Hall problem: Before you are three closed doors. Behind one of the doors is an all-expense paid trip to anywhere in the world....
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Permutations -- Counting

	ORC# 9735

RESOURCE INFORMATION
RESOURCE URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-P...
RESOURCE TYPE: Rich Problem, Inquiry, or Exploration
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 8 - 12
PROFESSIONAL COMMENTARY: Suppose you have some objects that you want to line up in a row. In how many different ways can you do it? Extensions of the problem and a complete discussion of the underlying mathematical ideas are included....
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Probability Using Dice

	ORC# 9737

RESOURCE INFORMATION
RESOURCE URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-P...
RESOURCE TYPE: Rich Problem, Inquiry, or Exploration
DISCIPLINE: Mathematics
STANDARDS ALIGNMENT: Grades 4 - 8
PROFESSIONAL COMMENTARY: What are the probabilities of rolling various sums with two dice? How can you analyze this situation? Extensions of the problem and a complete discussion of the underlying mathematical ideas are included. This mathematically rich problem was originally developed for the Project Discovery Mathematics by Inquiry institutes for middle grades teachers taught in 1992 - 1994 at Ohio State University....
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