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Worksheet
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Who Dun It?

For Students 9th - 12th
In this proofs by contradiction activity, students solve 1 word problem about a crime.  Students use proof by contradiction to determine the criminal in the word problem.
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Worksheet
Curated OER

The Nine Digits Problem

For Students 9th - 12th
In this problem solving learning exercise, students find the solution to 2 brain teasers.  Students have two addition problems that they must replace 9 letters with the correct digits 1-9.
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Worksheet
Curated OER

Sudoku Puzzle with Limits

For Students 11th - 12th
For this limit problems worksheet, students solve 28 limits problems.  Students find the limits of various functions as x approaches a certain number.  Students solve a sudoku puzzle with their answers.
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Worksheet
Curated OER

Intro to Derivatives

For Students 11th - 12th
In this calculus worksheet, students find the line tangent to a curve using the derivative. They graph the slope and identify the line of tangency. There are 6 questions.
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Worksheet
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Integration

For Students 11th - 12th
In this calculus worksheet, students solve problems by integration and taking the derivatives. There are 34 integration problems to review for major concepts in calculus.
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Worksheet
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The Fundamental Theorem

For Students 11th - 12th
In this calculus worksheet, students solve equations and functions by taking the derivative of each equation. They apply the Fundamental Theorem of Calculus to their problems, as they solve for the limit and identify different graphs....
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Worksheet
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Practicing the Chain Rules

For Students 10th - 12th
In this calculus worksheet, students solve problems using the chain rule to take the derivative and solve the function. There are 6 questions which require the students to find the correct strategy to solve the equations.
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Lesson Plan
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Weights of Objects

For Teachers 9th - 12th
High schoolers differentiate between the weights of an object on different planets. In this geometry lesson, students investigate different weights and graph their results as it relates to the different planets. They appreciate the...
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Lesson Plan
Curated OER

Medieval Money

For Teachers 9th - 12th
High schoolers investigate the history of money as it was back then compare to now. In this algebra lesson, students analyze the type of money used in medieval times, the value of the currency and the coins used. They make a budget using...
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Worksheet
Curated OER

Trigonometry Puzzle

For Students 8th - 12th
In this trigonometry worksheet, students solve for the degree or the ratio in 48 questions using the 6 basic trigonometric functions. 
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Worksheet
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Rate of Change

For Students 11th - 12th
In this calculus worksheet, students calculate the rate of change in an isosceles trapezoid. They take the derivative to find their answer.
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Worksheet
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Solving Two-Step Inequalities

For Students 9th - 12th
In this inequalities worksheet, students use two steps to solve 16 inequality problems. A line graph is provided to graph the answers, and an answer key is provided.
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Lesson Plan
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Infusing Equity Gender into the Classroom

For Teachers 11th - 12th
Students investigate if gender makes a difference in the classroom. For this statistics lesson, students collect data on whether equity by gender in the classroom makes students more successful.
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Lesson Plan
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A Picture's Worth a Thousand Words

For Teachers 9th - 12th
Students analyze the numbers of male vs female administrators and teachers from their school. In this gender equality lesson plan, students use school yearbooks from the 1950's threw present to count how many male vs. female teachers,...
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Worksheet
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Implicit Differentiation

For Students 11th - 12th
In this calculus worksheet, students solve equations using the derivative and implicit differentiation. There are 14 questions with an answer key.
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Lesson Plan
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History's Thermometers

For Teachers 9th - 12th
Students explain the concept of paleoclimatological proxies. In this oxygen isotope lesson, students interpret data and make inferences about climate changes in the geologic past.
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Interactive
Curated OER

SAT Problem Solving Practice Test

For Students 11th - 12th
In this problem solving practice test, students select the best answer from 4 choices to ten questions. Questions are word problems and cover a variety of topics.
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Worksheet
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Solve Word Problems with Geometry

For Students 7th - 12th
In this geometry instructional activity, students solve word problems having to do with lines, angles, shapes, area, perimeter, and more. Students complete 57 problems total.
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Worksheet
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Polygons

For Students 11th - 12th
In this geometry worksheet, students use Kruskal's algorithm to analyze and solve shapes as it relates to cost. There are 4 questions with an answer key.
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Worksheet
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Systems and Matrices

For Students 7th - 12th
In this algebra worksheet, students are asked to find replacement sets for modified problems. There are 39 questions with an answer key.
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Lesson Plan
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Geologic Time Scale Analogy

For Teachers 5th - 12th
Students examine geologic time to scale. In this geologic time lesson, students create a time-scale metaphor that shows some of the Earth's important events. Students present their metaphor to the class.
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Interactive
Curated OER

Water Studies: Precipitation and Population

For Students 7th - 12th
For this water worksheet, students complete the chart about precipitation and population and answer short answer questions. Students complete 14 rows in the chart and answer 4 questions.
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Worksheet
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Exponents: Positive and Negative Bases

For Students 9th - 12th
In this exponents worksheet, students solve 18 exponent problems.  Students use exponent rules to simplify exponents with positive and negative bases.
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Worksheet
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Trick or Treat

For Students 9th - 12th
In this problem solving activity, students solve 1 word puzzle.  Students replace 10 different letters with the correct digits 0-9 to get the correct sum.