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Lesson Plan
Curated OER

Solving Single-Step Word Problems

For Teachers 3rd - 5th
Math wizards learn the five-step plan to solve math word problems. They investigate the five-step process for solving word problems, and examine the use of code words for each of the operations and solve a problem using the strategies.
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Worksheet
Curated OER

You Know the Answer: Math Riddle

For Students 3rd - 6th
Although the riddle is an outdated political reference, this math challenge is a good practice in operations and domain-specific vocabulary. Learners complete 18 problems, using multiplication, division, subtraction, and addition. Some...
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Lesson Plan
Curated OER

Number Sentences

For Teachers 5th
Fifth graders become familiar with problem solving strategies of guess and check and working backwards. They demonstrate the basic concepts of addition, subtraction, multiplication, and division using a math sentence.
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Lesson Plan
Curated OER

What is Coal?

For Teachers 1st - 4th
Students receive instruction to answer the question "What is coal?". They then participate in several puzzles and problems to explore the subject of coal. They solve addition and subtraction problems and match letters with the letter...
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eBook
Savvas Learning

Saxon Math 5/4

For Teachers 3rd - 5th Standards
You'll never have to search for another worksheet again after downloading this extensive collection of Saxon math materials. With over 600 pages of example problems and skills practice exercises, this is a must-have resource for any...
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Worksheet
Curated OER

Critical Thinking Problems

For Students Pre-K - K
Young mathematicians practice their reasoning as well as adding and subtracting skills with this worksheet that includes five simple word problems about birthdays. Learners are give pictures of birthday cakes and based on the number of...
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Lesson Plan
Drexel University

Learning Roomba Module 1: Robotics Introduction

For Teachers 9th - 12th
Introducing Mr. Robot. As an introduction to robotics, class develop a definition of a robot and make distinctions between real robots and those in science fiction. They also study the basics of programming in Java to program a Roomba.
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Worksheet
Raytheon

Strategies for Solving Math Word Problems

For Students 4th - 6th
In this strategies for solving math word problems worksheet, students read two pages of examples and explanations, then solve 42 addition, subtraction, multiplication and division problems, answer sheet included.
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Lesson Plan
Curated OER

Matrices: A Secret Weapon

For Teachers 9th - 11th
Students perform operations with matrices. In this algebra lesson plan, students use cryptography and cryptanalysis to solve problems. They add, subtract, and multiply matrices.
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Lesson Plan
Curated OER

Do the Tallywalker

For Teachers 5th - 7th
Students study the basics of mapmaking, then make a tally walker, (geographic location device used in secret).
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Worksheet
Curated OER

You Know the Answer

For Students 4th Standards
In this problem solving worksheet, 4th graders are given an answer to a question and must solve the mathematical problems to discover the secret question. Students solve for 18 problems using addition, subtraction, multiplication and...
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Lesson Plan
Curated OER

From Restriction Maps to Cladograms

For Teachers 9th - 12th
Biology aces analyze restriction maps to determine the relationships among different primate species and then complete a cladogram. Preface this lesson with an explanation of how restriction enzymes are used to create the DNA maps....
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Lesson Plan
Curated OER

Roman Numerals and Their History

For Teachers 2nd - 4th
Students identify Roman numerals and the history associated with them.  In this historical number instructional activity, students investigate charts and photographs to discover the history of Roman numerals.  Students bring a Roman...
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Lesson Plan
Curated OER

From Restriction Maps to Cladograms

For Teachers 9th - 12th
Learners develop a matrix to determine the number of differences between each set of primate species. They determine closely related organisms then complete the cladogram and answer a set of questions.
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Lesson Plan
Curated OER

Roman Numerals

For Teachers 5th - 8th
Studetns recognize Roman numerals and identify each symbol and what it stands for.
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Worksheet
Curated OER

Genome Interactions

For Students 7th - 10th
In this genome interactions worksheet, students read the passage about genome interactions then apply the knowledge to answer several short answer questions.
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Unit Plan
PBS

Pbs: Word Problems Using Addition and Subtraction of Fractions: Harry Gets Locked Up

For Students 3rd - 5th
This video features Harry and his cousin Harley. Harley is desperate to use Harry's bike, but first he must decipher the combination to the bike lock by solving a word problem. In the accompanying classroom activity, students complete a...
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Interactive
University of Illinois

University of Illinois: Mste: The Binary Calculator Applet

For Students 9th - 10th
The binary number system is used to represent data in digital form. This site provides a binary calculator that will convert between binary, octal, decimal and hexadecimal, perform simple addition and subtraction, and do compliment and...
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Interactive
Scholastic

Scholastic: Math Facts

For Students 3rd - 5th
This one page website from Scholastic offers two math facts games and a secret code idea all to help you remember your math facts.
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Interactive
PBS

Pbs Learning Media: Pattern Recognition: Cyberchase Games

For Students K - 1st
Identify the patterns using addition, subtraction, and geometry to solve the puzzle and crack Hacker's code.