Worksheet
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Counting Back by 1's, 2's, 5's, 10's, 100's Sheet

For Students 2nd - 3rd
In this counting back activity, students fill in blanks in rows, counting back by 1's, 2's, 5's, 10's or 100's as instructed. A website reference for additional resources is given.
Lesson Plan
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Factor Cards

For Teachers 3rd - 4th
Students are introduced to the concept of factorization. Individually, they are given seven cards and turn over one card at a time. They take the card and place it on top of the pile and identify the common factor with the one they are...
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Subtracting Two- and Three-Digit Numbers

For Teachers 5th - 7th
In this subtracting two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to fourteen subtraction equations.
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In the Bag!

For Teachers 3rd - 5th
Students calculate how many quarters are in a $1,000 bag (after learning the dollar value of filled coin bags). They explain their problem-solving strategy using pictures, numbers, equations, and/or words.
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Adding Two- and Three-Digit Numbers

For Teachers 5th - 7th
In this adding two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to eight mathematical word problems and equations.
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Estimating Quotients

For Students 4th
In this estimating quotients worksheet, 4th graders estimate the quotient in 12 math problems and write the numbers they used on the lines provided.
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Subtraction With Negative Results

For Students 4th - 5th
In this subtraction activity, students solve 80 problems in which a single digit number is subtracted from another number that is smaller. The answers will be negative numbers.
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2 digit subtraction

For Teachers 2nd
Second graders subtract numbers 0 through 10 from 2 digit numbers using different subtraction methods. In this subtraction lesson plan, 2nd graders practice crossing out numbers in a number line, using a 10, and using their fingers to...
Worksheet
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Easy Division Without Remainders: 2-Digit Quotient

For Students 3rd - 4th
In this division instructional activity, students complete a total of 9 problems; problems have no remainders and 2-digit quotients. Worksheet contains a link to additional activities.
Lesson Plan
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Finding Sums to 6

For Teachers Pre-K - 2nd
Pupils explore the additive identity property where they add multiple numbers to get to the number 6. In this number 6 lesson plan, students also work on their addition charts.
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Probability & Game Theory

For Teachers 11th - Higher Ed
Learners explore the concept of probability. In this probability lesson, students perform various probability experiments including flipping a coin, picking m&m's out of a bag, and the birthday problem.
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Divisibility Checks: Paired Activity

For Students 3rd - 4th
In this division game worksheet, students will work in small groups to play a game about dividing numbers. A teacher's guide with game instructions is included.
Lesson Plan
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Pattern Blocks to Understand Fractions

For Teachers 3rd - 6th
Students use pattern blocks to help them complete fraction problems. In this fraction lesson plan, students complete problems on worksheets provided.
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Clock Arithmetic and Cryptography

For Teachers 8th - 10th
Students explore the concept of modular arithmetic and cryptography. In this modular arithmetic and cryptography lesson, students use applets to explore modular arithmetic using a clock and Caesar Ciphers. Students exchange their ciphers...
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Probability and Statistics

For Teachers 9th - 11th
Students are taught to search the internet for statistics concepts on sports. In this probability activity, students collect data and use the calculator to graph and analyze their data. They graph and make predictions about sports using...
Worksheet
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Solving Equations

For Students 11th
For this Algebra II worksheet, 11th graders use the properties of equality to solve multi-step equations in one variable.  The tow page worksheet contains explanation, guided examples, and fifteen practice problems.  Answers...
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Touring the Regions of the United States

For Teachers 5th
Fifth graders explore the regions of the United States. They use maps, research on the Internet and use measurements and estimations. Students create a presentation using spreadsheets and publishing software.
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Let's Tesselate

For Teachers 3rd - 4th
Students investigate the geometrical concepts of translation, reflection, and rotation. They make different observations looking for the concepts that are displayed in classroom items like floor tiles, carpet designs, and visuals hung in...
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Apple Graphing

For Teachers 1st - 5th
Students sample a variety of types of apples and then survey each other regarding their favorites. They chart how many students prefer each type of apple.
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The Android Factory

For Teachers 4th - 10th
Students explore the idea that primitive virtual 3D objects can be reshaped to infinitely original combinations using additive and subtractive methods. They create 3-D objects with a computer which necessitates a cooperation of...
Lesson Plan
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Measuring Marvels

For Teachers K - 8th
Students discover how units of measurement help people to categorize objects. In this measurement lesson, students discuss various units of measurement, use creativity to invent new possible units of measure, and learn the history of...
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Measuring Marvels

For Teachers K - 8th
Students investigate measurement. In this library lesson plan, students discuss measurement, read Millions to Measure by David Schwartz, and complete a worksheet. Extra related activities are included in the lesson plan that appeals to...
Lesson Plan
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Education for Global Peace

For Teachers 7th - 8th
Students survey the class and graph the results. In this graphing and data collection lesson, students conduct a survey to see where their shirts were produced. Individuals use software to graph the results and create a written...
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The Island Problem

For Students 9th - 12th
In this secondary mathematics worksheet, students explore a logic problem in which a traveler must determine the correct question to ask a native in order to determine which fork in the road leads to safety.  The one page worksheet...

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