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Lesson Plan
EngageNY

Why Were Logarithms Developed?

For Teachers 10th - 12th Standards
Show your class how people calculated complex math problems in the old days. Scholars take a trip back to the days without calculators in the 15th installment of a 35-part module. They use logarithms to determine products of numbers and...
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Interactive
Curated OER

Trigonometry Applications

For Students 10th
In this geometry worksheet, 10th graders solve application word problems involving the use or right triangle trigonometry, including angle of elevation or depression. The one page interactive worksheet contains five questions. Hints,...
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Worksheet
Curated OER

Chocolate Squares

For Students K - 8th
In this algebra worksheet, students explore rectangular pattern as they divide up and cut chocolate bars in to 1x1 squares. There is an answer key.
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Worksheet
Curated OER

Algebraic Expressions & Equations

For Students 9th
In this algebraic expressions and equations worksheet, 9th graders solve 12 various types of problems ranging from writing expressions for each written equation to solving 8 different word problems related to cost, speed, age, and...
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Assessment
Inside Mathematics

Number Towers

For Teachers 9th - 12th Standards
Number towers use addition or multiplication to ensure each level is equal. While this is common in factoring, it is often not used with algebraic equations. Solving these six questions relies on problem solving skills and being able to...
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Lesson Plan
Illustrative Mathematics

Extensions, Bisections and Dissections in a Rectangle

For Teachers 9th - 11th Standards
Gaining practice in translating a verbal description into a diagram and then an equation is the real point of this similar triangles exercise. Once the diagram is drawn, multiple methods are provided to reach the conclusion. An effective...
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Worksheet
Curated OER

Rita's Ice Problem

For Students 11th
In this algebra worksheet, 11th graders calculate how many different choices they can create making their icy. The have a choice of 26 different flavors of ice and 5 different flavors of ice cream. There is a solution to this problem.
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Worksheet
Curated OER

Word Population Problem

For Students 8th - 12th
In this population worksheet, students explore the population of the world.  They determine the square miles that would be covered if the total population were standing in one spot.  This one-page worksheet contains 1 multi-step...
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Activity
Illustrative Mathematics

Zeroes and Factorization of a General Polynomial

For Teachers 10th - 12th Standards
These four problems will guide your class through the idea behind the Fundamental Theorem of Algebra, which states that a polynomial of degree n has exactly n roots. Use the division algorithm and the definition of a zero/root of a...
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Worksheet
Curated OER

Solving Linear Equations

For Students 9th - 12th Standards
Use this activity for practice or review solving linear equations in one variable. Problems range from multiple-step problems involving parentheses and combining like terms, to word problems, to equations with no solution or infinitely...
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Worksheet
Curated OER

The Area of Rectangles

For Students 1st - 2nd
There are 10 word problems here, all in the same format. Learners are presented with the geometric scenario of a rectangle divided into rows and columns. They must determine, based on the number of each, how many squares are inside the...
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Lesson Plan
Curated OER

Finding Fractional Parts Using an Area Model

For Teachers 4th - 6th
Students explore math functions by completing a problem solving worksheet in class. In this division lesson, students utilize visual aides such as marshmallows and candy to visualize the act of division. Students complete a division...
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Lesson Plan
Curated OER

Equal Parts

For Teachers 3rd - 4th
In this equal parts worksheet, learners, working with a partner, study, formulate and calculate the answers to six word problems or drawings.
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Lesson Plan
Curated OER

Changing the Different Currency of Different Countries

For Teachers 7th - 9th
Students change the money used in different countries into our currency. In this algebra lesson, students rewrite word problems using variables and inequalities. They label each unknown with a letter and identify the steps needed to...
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Worksheet
Curated OER

Integers

For Teachers 9th
In this integers instructional activity, 9th graders solve 16 different types of problems that include writing an integer to represent statements, arranging integers from least to greatest, and using integers to write mathematical...
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Worksheet
Curated OER

Fiddling with Fours

For Students 11th
In this algebra worksheet, 11th graders are solving word problem, where they are given only symbols and asked to find the answers. They get some clues to help them arrive at the answer. There is an answer key.
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Worksheet
Curated OER

Word Ladders

For Students 9th - 12th
For this secondary mathematics worksheet, learners follow Lewis Carroll’s rules to solve Word Ladders.  The one page worksheet contains two word ladder problems. Solutions are provided. 
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Lesson Plan
Curated OER

Using Inequalities to Problem Solve

For Teachers 8th - 10th
Students explore inequalities. In this Algebra I instructional activity, students solve and graph linear inequalities involving addition, subtraction, multiplication, or division.  Students use inequalities to solve and graph real-world...
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Assessment
Illustrative Mathematics

Building a General Quadratic Function

For Students 9th - 12th Standards
Rewrite a quadratic function to easily see the transformations involved. The instructional task takes a general quadratic function and rewrites it into a form that shows the translations and scaling of the parent quadratic function. The...
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Lesson Plan
Government of Hong Kong

Areas and Volumes - 2D Shapes

For Teachers 3rd - 6th Standards
Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, students apply this new knowledge to determine the area...
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Lesson Plan
Curated OER

Sine and Cosine

For Teachers 11th - 12th
Students solve problems using sine and cosine. In this precalculus activity, students solve word problems using sine and cosine. They identify where it is appropriate to laws of sine and cosine and where to use the Pythagorean Theorem.
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Lesson Plan
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Willow Tree

Arithmetic and Geometric Sequences

For Students 8th - 11th Standards
Old mathematicians never die; they just lose some of their functions. Studying sequences gives scholars an opportunity to use a new notation. Learners write functions to model arithmetic and geometric sequences and use them to find new...
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Lesson Plan
Curated OER

Translating Verbal Phrases into Algebraic Expressions

For Teachers 9th - 11th
Students rewrite word problems using algebraic symbols. For this algebra lesson, students graph linear equations after they rewrite the equation using algebra. They relate math to the real world.
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Lesson Plan
Curated OER

Operations of Complex Numbers and Intro to DeMoivre's Theorem

For Teachers 9th - 10th
Pupils solve problems with complex numbers. In this algebra lesson, students factor complex numbers and simplify equations using DeMoivre's Theorem. They add, subtract, multiply and divide using negative roots.