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Lesson Plan
Curated OER

Inductive and Deductive Reasoning

For Teachers 9th - 12th
Students use logical arguments and inductive reasoning to make or disprove conjectures. After observing a teacher led demonstration, students discover that the deductive process narrows facts to a few possible conclusions. In groups,...
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Activity
Curated OER

Addition Patterns

For Teachers 3rd Standards
Use a learning activity with your youngsters in order to establish an understanding of patterns in a small addition table. Help learners recognize that adding two odd numbers will produce an even number, and adding two even numbers will...
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Lesson Plan
Curated OER

Introduce Double-Digit Addition

For Teachers 3rd - 4th
Pupils generate a list of numbers then classify them into groups of single digit and double-digit numbers. After listening to a children's book about double-digit addition, they work with tens and ones blocks to solve double-digit...
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Worksheet
Tin Snips

Addition Hearts

For Students K - 2nd Standards
Two hearts are better than one, I always say. Have your little ones use the numbers and images contained within these hearts to count and add numbers up to ten. There are four problems to solve. Because objects are included along with...
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Lesson Plan
Curated OER

Making a Ten

For Teachers 1st - 3rd Standards
An addition table supports third graders as they learn strategies to improve their math fluency. When finding sums greater than ten, students are taught how to first make a ten and then add on the rest. A similar method is also...
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App
Houghton Mifflin Harcourt

Sushi Monster

For Students 3rd - 6th Standards
These monsters are hungry for sushi and it's your job to feed them. Complete addition and multiplication equations to satisfy their needs while developing math fluency.
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Lesson Plan
Virginia Department of Education

Inductive and Deductive Reasoning

For Teachers 9th - 11th
Introduce pupils to the two types of reasoning, inductive and deductive. Classmates work in pairs or small groups to learn the difference between the two and apply these reasonings to develop valid conclusions. 
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Worksheet
Math Worksheets Land

Adding Objects in Rectangular Arrays - Step-by-Step Lesson

For Students 1st - 2nd Standards
These aliens will be familiar to any mathematicians who have seen Toy Story! Use an array of them to practice addition and writing number sentences. Because this learning exercise includes the explanation to its one problem, project it...
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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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Handout
Lockport City School District

Reasons for Geometric Statement/Reason Proofs

For Students 8th - 11th Standards
Stuck trying to remember the formal language of a geometric proof? Never fear, this handout has them all ready to go. The reasons are sectioned by topic so this handy guide is ready when you are to tackle those two column proofs. 
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Lesson Plan
Curated OER

The Sum of Our Integer Intelligences

For Teachers 7th - 8th
Young mathematicians explore integers. They review adding integers through engaging in mathematical labs. Each lab station is designed to reflect one of the multiple intelligences. Resources for all activities are provided.
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Lesson Plan
Curated OER

Twenty Questions: The Hundred Chart

For Teachers 2nd - 6th Standards
Use the 20 Questions game to practice math vocabulary and number properties! Project a hundreds chart and hand one out to learners. Ideally, give them counters (beans would work well) to mark off the chart so you can play multiple times....
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Lesson Plan
Illustrative Mathematics

Field Day Scarcity

For Teachers K - 2nd Standards
Introduce young mathematicians to concepts of financial literacy with this open-ended word problem. With seven dollars to spend during field day and given a list of available items and their prices, children must determine how they want...
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PPT
Curated OER

Secret Country Code Breaker

For Teachers 4th - 6th
Super cool and totally fun math awaits your class. They are the code breakers, and their job is to identify and locate the secret agent by breaking two different codes. They use all their skills to solve a series of double-digit addition...
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Lesson Plan
Statistics Education Web

Odd or Even? The Addition and Complement Principles of Probability

For Teachers 9th - 12th Standards
Odd or even—fifty-fifty chance? Pupils first conduct an experiment rolling a pair of dice to generate data in a probability instructional activity. It goes on to introduce mutually exclusive and non-mutually exclusive events, and how to...
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Unit Plan
EngageNY

Relationships Between Quantities and Reasoning with Equations and Their Graphs

For Teachers 6th - 10th Standards
Graphing all kinds of situations in one and two variables is the focus of this detailed unit of daily lessons, teaching notes, and assessments. Learners start with piece-wise functions and work their way through setting up and solving...
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Worksheet
Curated OER

Addition Riddles

For Students 1st - 2nd
In this addition riddles worksheet, students read three clues and analyze the numbers in a 4 square grid. Students cross out numbers that do not fit the clues and determine the answer. There are 4 riddles on each page.
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Lesson Plan
Curated OER

Adding Two- and Three-Digit Numbers

For Teachers 5th - 7th
In this adding two- and three-digit numbers worksheet, young scholars, with a partner, problem solve and calculate the answers to eight mathematical word problems and equations.
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Worksheet
Curated OER

Addition - Decimals

For Students 4th - 8th Standards
In this decimal addition worksheet, students solve 15 problems that require them to add decimal numbers with 1-5 digits.
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Worksheet
Curated OER

Eleven Angle Addition Postulate and Adjacent Angle Problems

For Students 9th - 11th
In this angles instructional activity, learners use the angle addition postulate, the idea of adjacent angles and the diagrams shown to answer eleven questions
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Lesson Plan
Curated OER

Add It Up In Number Ville! Adding 2-Digit Numbers With and Without Regrouping

For Teachers 2nd - 4th
Students explore adding 2-digit numbers. In this math lesson, students identify 2-digit numbers and use base ten blocks to practice adding. Students use addition to break a code.
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Lesson Plan
Curated OER

Proving Quadrilateral Properties

For Teachers 9th - 11th
Working backwards can sometimes help you see a path to solving a problem. In this chapter, properites of quadrilaterials are proven by looking at flowcharts and working the probem backwards. Worked through examples are given, along with...
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Lesson Plan
Utah Education Network (UEN)

Pattern Search

For Teachers 3rd Standards
Pupils identify and define various mathematical properties, such as the commutative properties of addition and multiplication, and the associative property of addition. They also reason and communicate mathematically by making...
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Lesson Plan
Pennsylvania Department of Education

Multiplication Using Arrays

For Teachers 2nd - 4th
Explore the concept of multiplication by using arrays. Classmates use arrays to gain a better understanding of multiplication. They break arrays apart to model the distributive property of multiplication over addition. The relationship...