Ohio Resource Center

# Problem Corner

Browse all rich problems in mathematics:
 --Select a Topic-- Algebra - Patterns, sequences - Commutativity, associativity, other properties - Polynomials, Expressions - Equations - - Linear - - Quadratic - - Systems of equations - Graphing, usual coordinate system - Inequalities - Functions - - Linear - - Quadratic - - Non-linear (Exponential, Logarithmic, Step, etc.) - Trigonometry (including polar coordinates) Applications Assessment Calculus, pre-calculus Discrete mathematics Geometry - Plane Figures (2-D) - Solid Figures (3-D) - Area - Surface area, volume - Points, lines, segments, angles - Symmetry - Congruence - Similarity - Circles - Conic sections - Models, construction - Non-Euclidean geometry - Transformations (translations, rotations, reflections, dilations) Measurement - Length, distance, height - Weight, mass - Time - Money - Perimeter - Units, conversion Numbers and operations - Whole numbers (counting, operations) - Equivalence, comparing, ordering - Estimation - Fractions, rational numbers - Decimals - Integers - Percents - Exponents, roots - Real numbers - Complex numbers - Vectors and matrices Problem solving Ratio and proportional relationships Reasoning and proof Probability - Simple probability - Conditional probability - Decision making Statistics - Data display - Mean, median, mode - Data analysis, interpretation --Select a Grade-- Kindergarten 1 2 3 4 5 6 7 8 9 10 11 12
 Results 1 - 10 of 595: Return to Problem Corner Discipline(s): MathematicsResource Type(s): Content Supports — Activities and rich problems
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1
Too Big or Too Small?
ORC# 3313
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
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....
2
How Many Valentines?
ORC# 5836
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Professional Commentary: There are 28 students in your classroom. On Valentine's Day, every student gives a valentine to each of the other students....
3
Area and Volume in 3D -- Can't Have One Without the Other!
ORC# 9709
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
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....
4
Boxes and Cats: Statistics From the Beginning
ORC# 9710
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Professional Commentary: Q. Why is a box like a cat? A. Both have whiskers....
5
Can You Really Get There From Here?
ORC# 9711
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
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....
6
Coin Flips
ORC# 9713
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
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....
7
ORC# 9714
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Professional Commentary: How many of the numbers in a set of data have a leading digit of 1 and how many have a final digit of 1? An extension of the problem and a complete discussion of the underlying mathematical ideas are included....
8
Finding Areas Using Maps
ORC# 9716
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics
Professional Commentary: Students find the area of a natural feature, such as a lake or forest, using a map and the scale of the map. A discussion of the underlying mathematical ideas is included....
9
How Much Grout?
ORC# 9717
Resource Information
Resource Type: Content Supports -- Activities and rich problems
Discipline: Mathematics