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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Field Day Scarcity

For Teachers 1st - 2nd
Students will learn about managing money and scarcity while practicing addition and subtraction. They will be given a certain amount of money to spend at a fictitious store. Included are discussion questions about how students decided to...
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Lesson Plan
Live Wire Media

Good Character: Working Out Conflicts

For Teachers Pre-K - 1st
Learn how to work out conflicts with others "Fairly and peacefully." This website includes simple tips to help you resolve problems, control your anger. Discuss conflict resolution with other students and your parents by using the...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Red and Blue Tiles

For Teachers 1st - 2nd Standards
Students will determine whether a set of objects contains an even or odd number of members using strategies such as pairing objects or attempting to divide the objects into two equal subgroups. Discussion questions and explanations are...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Saving Money 2

For Teachers 2nd - 3rd
The purpose of this task is for learners to relate addition and subtraction problems to money and to situations and goals related to saving money. A problem is given that will contain multiple solutions, this allows students to think...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Pencil and a Sticker

For Teachers 2nd - 3rd
The following problem is posed to the class: A pencil costs 59 cents, and a sticker costs 20 cents less. How much do a pencil and a sticker cost together? The solution with explanation is included on this site.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Daisies in Vases

For Teachers 1st - 2nd Standards
Learners will solve a word problem with various outcomes by creating a meaningful representation of the problem by using objects, pictures, or equations. An explanation is provided.
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Lesson Plan
Success Link

Success Link: Exploring Limits and Recursive Sequences

For Teachers 9th - 10th
A well laid-out lesson plan that uses a classroom simulation to show the medicine level in the body over a period of time. Students track on a chart the process of intake/elimination and problem solve what happens to the medicine over time.
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Unit Plan
TED Talks

Ted: Ted Ed: 5 Tips to Improve Your Critical Thinking

For Students 9th - 10th
This lesson is introduced with a video that explains five steps in critical thinking to follow that can help when making decisions. Includes multiple-choice and open-ended questions, as well as background information about the discipline...
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Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Fish Riddle?

For Students 4th - 8th
In this riddle, some endangered fish species are being transported by water and a storm causes them to be thrown overboard. Your task is to devise a way to rescue them. The video provides some pointers on how to approach the problem....
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Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Unstoppable Blob Riddle?

For Students 9th - 10th
A shooting star crashes onto Earth. It's unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet is to cut the entire blob into precise acute triangles, rendering it inert....
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Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Cuddly Duddly Fuddly Wuddly Riddle?

For Students 9th - 10th
You've promised to get your son the cutest creature in creation: the cuddly. It's part of the Wuddly species, cousin to the terrifying duddly and the hideous fuddly. To make one, 100 eggs are placed in an incubator to undergo egg fusion,...
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Article
Other

Csicop: Field Guide to Critical Thinking

For Students 9th - 10th Standards
This article, originally published in Skeptical Inquirer, outlines some of the key components of the scientific problem-solving process while addressing the many reasons for the popularity of paranormal beliefs in the U.S. (Published in...
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Lesson Plan
National Endowment for the Humanities

Neh: Edsit Ement: Poems of Tennyson and Noyes: Pictures in Words

For Teachers 9th - 10th
This is a great and informative site. This instructional activity uses Tennyson's "The Charge of the Light Brigade" and Noyes's "The Highwayman" to teach vivid imagery and figurative language. Don't miss out.
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Handout
University of Georgia

University of Georgia: Intermath Dictionary: Additive Inverse

For Students 3rd - 8th Standards
"What happens when you add opposite numbers together?" Understanding the additive inverse will help you to answer this questions. An explanation of additive inverse with examples and non-examples.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Trends in Data

For Students 8th - 9th
[Free Registration/Login may be required to access all resource tools.] Learn how to solve problems using tables and patterns.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Problem Solving Plan, Diagrams

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Solve problems using diagrams.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Functions That Describe Situations

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Students learn to represent and solve real-world problems with functions. Students examine guided notes, review guided practice, watch instructional videos and...
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Comparing Methods for Solving Quadratics

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Practice choosing methods for solving quadratic problems.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Formulas for Problem Solving

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Learn to use formulas to solve problems.
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Unit Plan
BBC

Bbc Skillswise: Percent and Fractions: Ratio and Proportion

For Students 3rd - 8th Standards
Activities and factsheets exploring ratios and proportions in everyday life. Interactive, colorful, and fun.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Applications of Function Models

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn how to fit data to a model. Students watch a video tutorial, explore guided notes and attempt practice problems.
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Lesson Plan
Scholastic

Scholastic: Multiple Ways to Solve a Problem

For Teachers K - 1st
This Marilyn Burns lesson plan employs children's literature to teach the topics of combinations, perimeter, and area using a problem solving approach. Primary and intermediate levels have an activity appropriate to each.
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Activity
Texas A&M University

Wtamu Virtual Math Lab: Beginning Algebra: Introduction to Problem Solving

For Students 9th - 10th Standards
A guide to solving problems involving numbers, rectangles, and angles. You'll learn how to employ Polya's four steps: understand the problem, devise a plan, carry out the plan, and look back.
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Interactive
Math Slice

Math Slice: Bricks 21 Game

For Students K - 1st
To win this strategic game you must lay the 21st brick. That is what makes this interactive game challenging. Play against the computer or a partner. Winners will have their names posted for the day.