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Assessment
Concord Consortium

Integer Solutions

For Students 7th - 10th Standards
Experiment with integer relationships. Young scholars consider integers that have a sum of 10. They begin with two integers, then three, four, and more. As they consider each situation, they discover patterns in the possible solutions.
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Lesson Plan
Teach Engineering

Design Step 3: Brainstorm Possible Solutions

For Teachers 9th - 12th Standards
Our young scientists have now specifically identified a problem, and this step helps them think of possible solutions. An outline, including guidelines, for brainstorming helps scholars stay on the right path. The resource includes...
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Worksheet
Curated OER

Chapter 12 Review, Mixed Review: Solutions

For Students 9th - 12th
Although there are only six questions on this chemistry handout, it makes a thorough review of solutions. Novices explain why a compound is not an electrolyte, identify types of compounds, and calculate moles, grams, and molalilties in...
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Worksheet
Curated OER

The Doorbell Rang

For Students 1st - 3rd
Using the Pat Hutchins book The Doorbell Rang, introduce your learners to division using this simple exercise. They start with either 16, 24, or 32 cookies and consider how many friends they could share this number of cookies with. Note...
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Lesson Plan
Illustrative Mathematics

The Sign of Solutions

For Teachers 7th - 9th Standards
Positive or negative, zero or no solution, are all possibilities for the solution of a linear equation. Here the resource gives examples of linear equations in one variable and their type of solutions. The resource comes with commentary...
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Assessment
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Inside Mathematics

Two Solutions

For Teachers 9th - 12th Standards
Many problems in life have more than one possible solution, and the same is true for advanced mathematics. Scholars solve seven problems that all have at least two solutions. Then three higher-level thinking questions challenge them to...
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Worksheet
Curated OER

Chapter 13 Review, Section 1: Ions in Aqueous Solutions and Colligative Properties

For Students 7th - 12th
This is an apt assignment for chemistry takers that are studying ionic solutions. Eight questions require problem solving and critical thinking to answer. The first question instructs learners to use a table in the textbook, but you can...
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Lesson Plan
EngageNY

Solution Sets to Equations with Two Variables

For Students 9th - 10th Standards
Can an equation have an infinite number of solutions? Allow your class to discover the relationship between the input and output variables in a two-variable equation. Class members explore the concept through tables and graphs and...
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Lesson Plan
Missouri Department of Elementary

Opportunity Knocks, But It Costs, Too!

For Teachers 6th
Sixth graders practice six steps to effective problem solving. Working with the school counselor, class members are presented with a scenario that requires them to make a decision. Individuals then write a reflection in which they...
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Lesson Plan
Curated OER

Radical Equations

For Teachers 9th - 12th Standards
This task gives geometry learners practice in solving radical equations in one variable and zeros in extraneous solutions.
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Lesson Plan
Anti-Defamation League

Exploring Solutions to Address Radical Disparity Concerns

For Teachers 9th - 12th Standards
The deaths of Michael Brown, Eric Garner, and Tamir Rice, and the protests that followed the 2014 shootings, are the focus of a current-events activity that asks class members to brainstorm and research possible strategies to address the...
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Lesson Plan
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EngageNY

Overcoming a Third Obstacle to Factoring— What If There Are No Real Number Solutions?

For Students 10th - 12th Standards
Time for pupils to use their imagination! Learners examine the relationship between a system with no real solution and its graph. They then verify their discoveries with algebra. 
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Lesson Plan
Curated OER

Do We Need to Wear a Rainhat? Acid Rain: Causes, Effects, and Possible Solutions

For Teachers 4th - 12th
Acid rain, and how it affects the environment, is the focus of this Earth science activity. During the study, learners evaluate measures to reduce acid rain, and design an investigation to demonstrate the conection between a hypothesis...
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Lesson Plan
Missouri Department of Elementary

If It’s to Be, It’s Up to Me

For Teachers 8th
Here's a clever switch on the tale of Pandora's Box. Rather than lifting the lid and having problems escape, class members write a problem on a strip of paper and place it in Pandora's Problem Box. A student  then pulls a problem from...
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Interactive
CK-12 Foundation

Systems of Linear Equations in Three Variables: Intersecting Planes - No Solution

For Students 9th - 12th
How many different ways can three planes intersect? The interactive provides three movable planes. Pupils manipulate the planes to determine the number of solutions possible based upon their intersections.
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Interactive
CK-12 Foundation

Checking Solutions to Inequalities: Apples and Bananas Shopping Excursion

For Students 7th - 9th Standards
Go bananas over a fun interactive! Learners drag a point on a virtual graph of an inequality to see if it is a solution. This helps determine the possible numbers of apples and bananas a shopper can buy with a given amount of money.
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Lesson Plan
Curated OER

Predicting a Solution to a Problem

For Teachers 2nd - 4th Standards
Students explore story structure. In this story structure literacy lesson, students listen to the story Ruby's Wish by Shirin Yim Bridges, stopping at points to identify a problem and predict possible solutions which are then written on...
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Worksheet
Curated OER

AP Chemistry-Solution Chemistry Practice Problems

For Students 10th - 12th
In this solutions worksheet, students solve fifteen problems including finding molar concentrations, writing net ionic equations, determining molarity of solutions, identifying oxidized and reduced agents and finding mass percent of...
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Lesson Plan
Illustrative Mathematics

Who is the Tallest?

For Teachers 3rd - 5th Standards
A simple question, with a not-so-simple answer. Working with whole and mixed number measurements in inches, feet, and yards presents a problem with many possible solutions. A great activity that challenges the minds of young...
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Lesson Plan
EngageNY

Solution Sets to Inequalities with Two Variables

For Students 9th - 10th Standards
What better way to learn graphing inequalities than through discovering your own method! Class members use a discovery approach to finding solutions to inequalities by following steps that lead them through the process and even include...
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Lesson Plan
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California Academy of Science

Fresh Solutions: Design Thinking Challenge

For Teachers 6th - 10th Standards
How do people transport fresh water long distances to ensure everyone has access to it? The final lesson in the 10-part Fresh Solutions unit encourages individuals to design their own solution, or solutions, to that very problem. Groups...
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Lesson Plan
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NASA

Lunar Rover

For Teachers 9th - 12th Standards
What is the shortest distance/time needed to complete a mission? Groups devise a strategy in order to determine the shortest distance and time connecting two points and a segment. They then use graphing, the distance formula, and a...
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Activity
Computer Science Unplugged

Ice Roads–Steiner Trees

For Teachers 4th - 12th
As an introduction to Steiner Trees, class members are challenged to find the shortest paths to connect multiple points. The teacher introduces the problem by showing how to connect three points. Groups then go outside and construct a...
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Assessment
Concord Consortium

Mirror, Mirror I

For Students 9th - 12th Standards
How do you see yourself? Young mathematicians consider whether it's possible to view their whole bodies in a mirror with a length that is half their height. They write a letter to a friend explaining their positions mathematically.