Curated OER
"NSN, Fractions, Percents, Ratios, Rates" Investigations
Sixth graders engage in an investigation about the concepts related to fractions. They read, represent, compare, and order proper and improper fractions, and mixed numbers. They demonstrate an understanding of relationships involving...
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Subtraction and Unknown Addends (to 20)
How many more gallons of fuel does Mr. George need to fill his car to capacity? This word problem uses the unknown addend strategy to get scholars subtracting and thinking about the relationship between mathematical...
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All About Money
Few topics engage young mathematicians as much as learning about money. Through a series of shared readings and hands-on activities, children explore the US currency system, learning how to count money and calculate change as they create...
Mascil Project
Sports Physiology and Statistics
If I want to build up my heart, where should I start? Science scholars use statistics in a sports physiology setting during an insightful experiment. Groups measure resting and active heart rates and develop a scatter plot that shows the...
National Wildlife Federation
Climate Solutions – A Call to Action!
The final lesson in the 21-part series on climate change focuses on energy solutions to the consumption problem. Using data specific to their school, pupils make recommendations, follow up on actions, and carefully track progress....
California Academy of Science
Optimal and Sustainable: Renewable Energy Revamp
More than 100 cities around the world have shifted from fossil fuels to renewable energy sources. Scholars investigate a city wanting to make this switch, but needs help determining how to make the shift. Groups consider all options,...
Curated OER
What's A Problem?
Fifth graders utilize strategies to solve a variety of problems and create problems of their own. They write explanations of problem solutions and using a checklist, evaluate themselves.
Curated OER
Weighing Time
Students devise a strategy to solve problems that is done in a systematic and mathematical fashion. The finding of the unknown value is the focus of the instructional activity. To solve linear equations proficiently is the skill of the...
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Rows of Numbers
Students generate patterns from a structured situation, find a rule for the general term, and express it in words and symbols. They also devise and use problem solving strategies in a systematic way.
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Square and Triangular Numbers
High schoolers use equations to represent practical situations. They solve linear equations and quadratic equations. The use of problem solving strategies is also developed.
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The Lady's Age
Learners use a game to establish the context of solving problems in a systematic and mathematical fashion. They also solve various types of equations to find reasonable solutions.
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Representing the Unknown
Second graders solve number sentences and examine how to apply basic operations of mathematics to those problems. They also use symbols to represent unknown numbers and how they are used in equations.
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Method of Solution
Students explore the Method of Solution. They identify the components of the Method of Solution. Students develop the method of solution for a project that includes how the computer will be used, the mathematical equations needed to...
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The Basketball Tournament
Students estimate how many games are played if six teams play each other once. They investigate their own way and discuss possible strategies they might use. They then share their findings with the class.
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Sandlapper Solutions
Students use mathematical thinking and reasoning to translate problems into mathematical language and thereby solve the problems. They extend their understanding of whole number operations to fractions and decimals by participating in...
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The Escape
Young scholars find strategies for investigating number problems. They find a common multiple of a group numbers. The teacher introduces the problem and students read and think about it. In groups, young scholars discuss the problem...
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Prime Time Math
Seventh graders use educational software in order to practice lesson objectives. They define rate and ratio. Students solve distance problems given two variables. They also use a problem solving strategy that can be defended in its usage.
Curated OER
Grade 5 Geometry
In this grade five geometry worksheet, 5th graders utilizing mathematical strategies to calculate the perimeter of a triangle. Students recognize that the perimeter of a triangle is side a plus side b plus c.
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Geometry
For this geometry worksheet, students utilize mathematical strategies to figure out which of four lines are vertical, horizontal and/or parallel.
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Acting Like a Hog
Students explore game theory. In this secondary mathematics lesson plan, students plat the game of HOG using dice and explore the optimal strategies. Students play the game three ways: any number of dice, a fixed number...
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Why Guess When You Can Estimate
They apply various strategies in their estimations. They analyze the differences between guessing and estimating. They estimate the number of beans and jellybeans in egg cartons and jars respectively.
Curated OER
Solving Problems
Second graders become familiar with need strategies for computation of money problems and estimating sums. In this computation lesson, 2nd graders solve real life problems to understand estimation and money problems.
Curated OER
Finding Satisfactory Solutions
Students decide where to locate ice cream stands in a town so that no one has to travel too far to buy a treat. The problem-solving strategies for this problem give students a chance to decide what makes a solution satisfactory.
Curated OER
Real-World Reasonableness
Fifth graders apply math to real-world situations. In this mathematics instructional activity, 5th graders are read the book, "Math Curse," which discusses ways in which math is used each day. Students then write a sequel to the book in...