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Problem Corner

Browse all rich problems in mathematics:
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Discipline(s): Mathematics
Resource Type(s): Content Supports — Activities and rich problems
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1
Floor Tile Reflection 3
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ORC# 16267
Resource Information
Resource URL: http://www.ohiorc.org/for/math/stella/problems/problem.aspx?id=8
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 8–12
Professional Commentary: Fill in colored tiles on a floor so that the design is symmetric with respect to both the horizontal and vertical axes. This problem is one of Stella's Stunners, a collection of challenging and entertaining mathematical problems to intrigue students in grades 6 - 12....
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2
Floor Tile Reflection 2
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ORC# 16158
Resource Information
Resource URL: http://www.ohiorc.org/for/math/stella/problems/problem.aspx?id=7
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 8–12
Professional Commentary: Fill in colored tiles on a floor so that the design is symmetric with respect to both the horizontal and vertical axes. This problem is one of Stella's Stunners, a collection of challenging and entertaining mathematical problems to intrigue students in grades 6 - 12....
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3
Floor Tile Reflection 1
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ORC# 16157
Resource Information
Resource URL: http://www.ohiorc.org/for/math/stella/problems/problem.aspx?id=6
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 8–12
Professional Commentary: Fill in colored tiles on a floor so that the design is symmetric with respect to both the horizontal and vertical axes. This problem is one of Stella's Stunners, a collection of challenging and entertaining mathematical problems to intrigue students in grades 6 - 12....
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4
Spirit Week Bake Sale Booth
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ORC# 16159
Resource Information
Resource URL: http://www.ohiorc.org/for/math/stella/problems/problem.aspx?id=1...
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 7–12
Professional Commentary: Can you schedule bake sale workers to satisfy the given constraints? This problem is one of Stella's Stunners, a collection of challenging and entertaining mathematical problems to intrigue students in grades 6 - 12....
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5
Too Big or Too Small?
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ORC# 3313
Resource Information
Resource URL: http://illuminations.nctm.org/LessonDetail.aspx?ID=L252
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 3–6
Professional Commentary: This lesson features three activities to promote number sense with large numbers, fractions, and decimal operations. In the first activity, students use proportional reasoning to determine whether $1 million in $1 bills would fit in a suitcase and how much it would weigh....
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6
How Many Valentines?
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ORC# 5836
Resource Information
Resource URL: http://www.learner.org/teacherslab/math/patterns/valentines/hand...
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 6–8
Professional Commentary: There are 28 students in your classroom. On Valentine's Day, every student gives a valentine to each of the other students....
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7
Area and Volume in 3D -- Can't Have One Without the Other!
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ORC# 9709
Resource Information
Resource URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-A...
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 5–8
Professional Commentary: Every 3-dimensional solid has both a volume and a surface area. Students explore the relationships between volume and surface area by constructing different solids from a given number of cubes....
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8
Boxes and Cats: Statistics From the Beginning
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ORC# 9710
Resource Information
Resource URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-B...
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 5–8
Professional Commentary: Q. Why is a box like a cat? A. Both have whiskers....
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9
Can You Really Get There From Here?
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ORC# 9711
Resource Information
Resource URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-C...
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 7–12
Professional Commentary: You are at an airport on the West coast of a long, narrow country. The country extends lengthwise to the East coast, and there are intermediate airports lined up along the way....
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10
Coin Flips
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ORC# 9713
Resource Information
Resource URL: http://www.ohiorc.org/orc_documents/orc/RichProblems/Discovery-C...
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Grades: Grades 5–11
Professional Commentary: In this inquiry activity, students are asked to determine whether a sequence of heads and tails was obtained by flipping a coin or by just making up a sequence of H's and T's. This investigation can be a starting point for exploring basic ideas of probability....
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