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Lesson Plan
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Curated OER

Sum of Infinite Geometric Series

For Teachers 9th - 12th Standards
Your mathematicians solve problems using geometric series in this pre-calculus lesson. They divide a unit square into very small pieces and identify the reasoning behind the sum of a series being less than one.
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Worksheet
Curated OER

Angle Sum of Triangles and Quadrilaterals

For Students 9th - 12th
In this angle sum worksheet, students find missing angles of 20 triangles and quadrilaterals.  Students find the missing angle in each polygon by using the total degrees of each and given angle measures.
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Worksheet
Curated OER

Consecutive Integers, Sum of 100

For Students 9th - 12th
For this secondary mathematics worksheet, students determine the number of sets of consecutive positive integers who have a sum of 100.  The one page worksheet contains one problem with the solution. 
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Worksheet
Curated OER

Sum Boxes

For Students 2nd
In this number pairs worksheet, 2nd graders look over 6 cubes of numbers and circle all the number pairs in each one that equals the sum above each cube.
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Worksheet
Curated OER

Making Addition Sums

For Students 2nd - 3rd
In this addition worksheet, students are given a sum and they are to come up with two sets of numbers that make up that sum.
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Lesson Plan
Curated OER

Triangle Sum Theorem

For Teachers 10th
Tenth graders investigate the theorems of angles and lines to prove triagle sum theorem. In this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two...
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Worksheet
Curated OER

Sum of Big Fractions

For Students 9th - 12th
In this secondary mathematics worksheet, students determine the sum of several fractions without a calculator.  The problems can be solved with a trick.  The one page worksheet contains one problem with the solution. 
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Worksheet
Curated OER

Finding the Sum of the Perimeters of 3 Small Circles

For Students 9th - 10th
In this geometry worksheet, students find the sum of the perimeters of three small circles.  These small circles are tangent to each other and to a larger circle.  The centers of the small circles have their centers on the diameter of...
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Worksheet
Curated OER

Divisibility Theorem (Sum)

For Students 9th - 12th
In this divisibility worksheet, students solve 1 word problem. Students find three unknown variables given information about their divisibility and sum.
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Worksheet
Curated OER

Summing Up

For Students 3rd - 5th
The first verse of A.A. Milne’s poem, Beetle, is the basis for a model of how to summarize a text. The two-page worksheet also includes a short story for guided practice, as well as summarizing questions, a story sharing activity, and an...
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Worksheet
Curated OER

Estimate Sums and Differences

For Students 4th
In this word problem activity, 4th graders answer 6 word problems by writing mathematical sentences that show each answer. They work with distances and time.
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Worksheet
Curated OER

Riemann Sums

For Students Higher Ed
In this college calculus worksheet, students write the Riemann Sum for the indicated partition and sub-intervals.  The two page worksheet contains five problems.  Answers are not included. 
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Worksheet
Curated OER

Riemann Sums

For Students 12th - Higher Ed
In this calculus worksheet, students solve prolbem in which they estimate double integrals by using Riemann sums. The three page worksheet contains four questions. Answers are not included.
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Worksheet
Curated OER

Sums

For Students 2nd - 3rd
In this addition word problems learning exercise, students read the problems, use mental math, and find the sums. Students solve five problems.
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Worksheet
Kuta Software

Polygons and Angles

For Students 6th - 10th
Get out those protractors! Geometers measure interior and exterior angles of 10 polygons, including a 24-gon. They also calculate the interior angle sum of the polygons. 
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Lesson Plan
West Contra Costa Unified School District

Arithmetic Series

For Teachers 9th - 12th
Fall for a series. Learners determine how to find out how far a skydiver falls in the first 20 seconds. The Algebra II lesson introduces the idea of adding up the terms of an arithmetic sequence. Pupils learn how to use Sigma notation to...
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Activity
Illustrative Mathematics

Making a Ten (Grade 1)

For Students 1st Standards
How many ways can first graders make a 10? Using an addition chart, learners color in the 10s on the table. They notice and explain the meaning of the pattern, and how to get to another sum of 10.
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AP Test Prep
College Board

Approximation

For Teachers 10th - 12th
Sometimes close enough is appropriate. A curriculum document for AP® Calculus examines the importance of providing approximation questions throughout the course. It looks at approximating derivative values, approximating definite...
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Activity
Houston Area Calculus Teachers

Collecting Driving Data

For Students 11th - Higher Ed
Give AP Calculus classes the opportunity to check the accuracy of their calculations! A calculus activity involves the collection of data, the application of mathematics, and the analysis of the accuracy of results. Young mathematicians...
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Interactive
CK-12 Foundation

Vector Sum and Difference: The Country of Dreams

For Students 11th - Higher Ed Standards
Find your way around using vectors. Scholars use an interactive to learn about vector addition. They answer a set of questions about modeling a route on a map using vectors.
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AP Test Prep
College Board

2010 AP® Calculus BC Free-Response Questions Form B

For Students 10th - 12th
Keep moving along a curve. Two items in the set of released free-response questions from the 2010 AP® Calculus BC exam involve movement along a graph. One involves particle motion along a polar curve while the other uses a squirrel...
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AP Test Prep
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Flipped Math

Calculus AB/BC Mid-Unit 6 Review: Integration and Accumulation of Change

For Students 10th - 12th
Accumulate the content so far. Learners review the content from the first five lessons dealing with accumulation functions. The eight problems go over finding maximums, minimums, concavity, points of inflection, and intervals of increase...
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Instructional Video5:42
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Flipped Math

Unit 3 Review: Parallell and Perpendicular Lines

For Students 9th - 12th Standards
Learners watch a quick review on the Parallel and Perpendicular Lines unit. The pupils work through ten review problems ranging from identifying types of angles formed by parallel lines and transversals to writing equations of parallel...
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Worksheet
Curated OER

Visual Sum and Difference Word Problems

For Students 1st - 2nd
Aside from awkward wording, this worksheet has problems for learners to solve. They read each problem then use the provided pictures to solve. Note: The images and language are misleading on this worksheet and may be confusing for some...

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