Activity
National Council of Teachers of Mathematics

Cash or Gas?

For Teachers 9th - 12th Standards
Which option provides the best payout? Pupils predict which lottery prize to take. They devise a method to calculate which prize would likely provide the greatest monetary value.
Lesson Plan
Curated OER

The Scientific Search for the Loch Ness Monster

For Teachers 5th - 12th
Students gain an understanding of the real world applications of the scientific method. They design their own experiments to prove or disprove the existence of other modern legends, and they design and carry out an experiment to test a...
Lesson Plan
Curated OER

Problem Solved!: Design Solutions

For Teachers 9th - 12th
Students learn about charrettes. For this arts lesson, students use creative problem solving processes used by design professionals and then investigate the role of problem solving in the world of design.
Interactive
Curated OER

Selecting the Best Method for Solving Quadratic Equations

For Students 9th - 11th
In this solving quadratic equations worksheet, students select the best method to solve a quadratic equation and then solve five quadratics.  Fully worked examples  are provided.
Lesson Plan
Curated OER

Word Problem Exchange

For Teachers 4th - 12th
Students discuss elements of word problems: key words, data, computation clues, and unnecessary information and use the four steps of problem solving to find a solution and check for reasonableness.
Lesson Plan
Curated OER

Solving Equations (Combined and Applications)

For Teachers 7th
Seventh graders, after completing a warm up on if you have three more diamonds than two times what Jon has, and you have 17 diamonds, how many diamonds does Jon have?, generalize a method for solving algebraic equations to model a given...
Lesson Plan
EngageNY

Part of a Whole as a Percent

For Teachers 7th Standards
Pupils use visual models, numeric methods, and equations to solve percent problems. To complete the second installment of 20, they find the part given the percent and the whole, find the percent given the part and the whole, and find the...
Unit Plan
1
1
Mathematics Vision Project

Module 2: Systems of Equations and Inequalities

For Teachers 8th - 10th Standards
The brother-sister pair Carlos and Clarita need your class's help in developing their new pet sitting business. Through a variety of scenarios and concerns presented to the siblings, the learners thoroughly explore systems of equations...
Lesson Plan
Code.org

One-way Functions – The WiFi Hotspot Problem

For Teachers 9th - 12th
Pupils attempt to solve the Wireless Hotspot Problem and learn why it is considered a computationally hard problem in the ninth lesson of the series on 12. They also learn about one-way functions and how the Wireless Hotspot Problem is...
Lesson Plan
Missouri Department of Elementary

Talk it Over and Work It Out: Compromise!

For Teachers 4th
Stop, Think, Act, Review! Scholars use the STAR method to role play two conflict resolution scenarios about childhood problems such as jealousy or cheating. Then, the larger group judges each case to determine if the compromise is a...
Lesson Plan
Curated OER

Modeling Mania Math Topic: Using Models

For Teachers 4th - 5th
Students examine problem solving techniques when working on spatial problems. They discover how models, sketches, and drawings can be used to understand on something works. They design a model of a bridge using given dimensions and...
Lesson Plan
Curated OER

# 12 Using Bottled Water as a Problem Solving Exercise in Chemical Identification

For Teachers 9th - Higher Ed
Students work in groups of two or three, groups are given four unidentified bottled waters in unmarked containers and the chemical characteristics taken from the label on the bottled waters. They devise and carry out a plan to match the...
Lesson Plan
Curated OER

Analytical Problem Solving

For Teachers 9th - 12th
Students explore about propagation of error in calculations using experimental data. They develop their weighing and pipetting techniques. Students explore the following terms: Standard deviation and relative standard deviatin. They...
Activity
Education Development Center

Word Problem with Rational Numbers—Balancing Bars of Soap

For Teachers 4th - 5th Standards
Here's a resource teachers won't want to wash their hands of. Given a task where a full bar of soap is on one side of a balance and 3/4 of a bar of soup and a 3/4-ounce weight is on the other side, young mathematicians must determine the...
Lesson Plan
Curated OER

Solving Equations (Multiplication and Division)

For Teachers 7th
Seventh graders, after explaining in writing the steps they would take to solve 4+x-2=6 as a warm up, solve multiplication/division equations using manipulative's. They generalize a method to problem solving with coins.
Lesson Plan
Curated OER

Guess and Test/Make a Table

For Teachers 7th - 8th
Students explore problem solving strategies.  In this middle school mathematics lesson, students investigate the guess and test and make a table problem solving strategies.  Students work in pairs to apply the problem solving...
Interactive
Curated OER

Using the Scientific Method

For Students 5th - 10th
In this scientific method worksheet, students click on the links in the questions about the scientific method to find the answers to the questions and then come back and answer the questions. Students answer 12 questions total.
Lesson Plan
Curated OER

Scientific Method

For Teachers 11th - Higher Ed
Students conduct an experiment and complete a chart demonstrating some of the basic properties and components of water via the scientific method. They encompass strategies such as questioning, making predictions, comparing/contrasting...
Worksheet
Curated OER

Leveled Problem Solving Sampling Errors

For Students 6th - 7th
In this sampling errors worksheet, students problem solve to find the sampling errors for each word problem. Students finish by finding a sampling method that might bias the last surveys.
PPT
Curated OER

Finding X and Y Intercepts

For Teachers 8th - 10th
How can you solve systems of linear equations? This slideshow introduces learners to the substitution method, the elimination method using addition and subtraction, and the elimination method using multiplication. Guided practice...
Lesson Plan
Curated OER

Solving Polynomial Equations by Factoring

For Teachers 9th - 10th
Pupils factor polynomial equations. In this algebra lesson, students apply the zero product property to factor quadratic equations. They solve real life scenarios by apply the concepts of parabolas.
Lesson Plan
Curated OER

Part Part Whole

For Teachers 1st
First graders solve number sentences. In this problem solving lesson plan, 1st graders construct addition sentences using a part part whole mat. Students demonstrate problem solving strategies using cubes.
Worksheet
Curated OER

The Coin Problem

For Students 9th - 11th
In this math problem solving worksheet, students describe how they will decide which coin among a stack is heavier than the others by weighing them. The challenge is to do so in the fewest number of steps. The answer is thoroughly...
Lesson Plan
Curated OER

Process This

For Teachers 5th - 8th
Young scholars chart the steps, including the problem-solving tangent, and discuss the idea of procedures serving to give us a "road map" or guide to help tackle tasks with preparation and forethought.

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