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Mathematics of Doodles

For Teachers 9th - 11th
Students use the slope and y-intercept to graph lines. In this algebra lesson, students graph linear equations and apply it to solving real life problems.
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"Missing Cal" Problem

For Students 9th - 11th
In this algebra activity, students decipher a cryptogram to find the numbers on Cal's uniform. There is an answer key to this problem.
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Rationalizing Denominators

For Students 9th - 12th
In this algebra instructional activity, students rationalize the denominator by multiplying by the conjugate. There are 15 multiple choice questions.
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SAT problem solving practice test 04

For Students 11th - 12th
For this Algebra II worksheet, students examine questions that are representative of those found on the SAT test.  The one page interactive worksheet contains ten questions.  Answers are not included. 
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Interest and Credit

For Teachers 9th - 11th
Students define interest and credit. In this algebra lesson, students analyze the pros and cons of having credit versus debit and interest as it applies to credit and debit. Students apply the ideas of interest and credit in their...
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The Mayan Calendar

For Teachers 9th - 11th
Students analyze the Mayan calendar and define its meaning. In this algebra lesson, students explain what the Mayan calendar means and how it works. They define the symbols and recreate a simplified version of the Mayan calendar.
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Complex Numbers

For Students 9th - 12th
In this algebra worksheet, students simplify complex numbers ranging from performing basic operations to distribution with a few combine like terms. There are 44 questions.
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Intro to Mayan Numbers

For Teachers 9th - 11th
Students investigate Mayan Numbers. For this algebra lesson, students compare our number system to the number system of the Mayans. They identify base 10 and base 20 numbers including zero in the Mayan symbols. They solve a Mayan problem.
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Identify and Apply the Properties of Real Numbers

For Teachers 10th - 11th
Students apply the properties of real numbers. In this algebra worksheet, students identify elements of an operation given a table of values. They identify the missing values in the table. There are 5 questions with an answer key.
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Cryptarithm

For Students 9th
  In this algebra worksheet, 9th graders solve the cryptarithm of five states to come up with an addition problem where each letter has a certain value. There is an answer key to this riddle    
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Cryptarithm

For Students 9th
In this algebra worksheet of word problem, 9th graders solve the cryptarithm of five states to come up with an addition problem where each letter has a certain value. There is an answer key to this riddle.
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Guess My Number

For Students 9th - 11th
In this calculus learning exercise, students solve word problems using algebra. Students solve derivatives to attain clues needed to solve a given quandary. There are 10 questions with an answer key.
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Accounting

For Teachers 10th - 11th
Students create bank reconciliation spreadsheet. In this algebra lesson, students discuss the basics about business, money and bank accounts. They use a bank reconciliation statement correctly.
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Number Line Relay

For Teachers 7th - 10th
Young scholars investigate the placements of numbers on a number line. In this algebra lesson, students visualise addition and subtraction on a number line.
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Dead Body Math

For Teachers 9th - 12th
Students solve the mystery of dead Mr. Potato Head using physics and algebra. They discuss Newton's Law of cooling as it applies to the mystery scenario involving a cooling baked potato as the "victim". They manipulate algebraic...
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Introduction to Tangent Lines using the TI-Nspire

For Teachers 9th - 11th
Young scholars make mathematical argument using the concept of Limit. In this algebra lesson, student calculate the instantaneous rate of change from the linear graph. They use a TI-calculator to create a visual of the graphs.
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What Day of the Week is it?

For Students 9th - 11th
For this algebra worksheet, students rewrite word problems using algebraic symbols. They figure out who is telling the truth about the day of the week. They are given different clues to help them get the correct answer. There is an...
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Four + One = Five

For Students 9th - 10th
For this algebra worksheet, students decipher a cryptarithm to make an addition problem. They have to figure out what digit each letter represent to be able to solve this problem. There is an answer key with this problem.
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Spelling Challenge

For Students 9th - 11th
For this algebra worksheet, students count and spell out the value of the integer. In this game of spelling, they use algebra to answer the questions of which letters were not ever used. There is an answer key.
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Cubes

For Students 11th
In this algebra worksheet, 11th graders figure out what the smallest integer is that can be written as the total sum of 2 cubes. There is an answer key.
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The Subway Advertisement Problem

For Students 9th - 11th
In this algebra worksheet, students calculate how many times a week you can eat at Subway without having the same sandwich twice. They use algebra to get to their answer. There is an answer key.
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Prime Problem

For Students 9th - 11th
For this algebra worksheet, students solve a word problem where they fill a grid with numbers from 0-9. This problem is a variation of sodoku. There is an answer key.
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Sports Data for the Classroom

For Students 11th
In this algebra worksheet,students rewrite word problems using algebraic expressions. They collect data and plot their findings on the graph and analyze it. There is an answer key for this worksheet.
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Ordered Pairs on a Coordinate Plane

For Teachers 7th
Seventh graders identify the quadrants and axis of a coordinate plane. In this algebra lesson, 7th graders discover the correct way to graph using the coordinate plane. They discuss the relationship between x and y values, domain and...

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