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Worksheet
Curated OER

Estimate Sums and Differences

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

Integration Unit: Riemann Sum

For Teachers 11th - 12th Standards
Students investigate Riemann Sums. In this calculus lesson, students solve problems involving Riemann sums and Right Riemann Sums.
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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 learning exercise, students solve prolbem in which they estimate double integrals by using Riemann sums. The three page learning exercise contains four questions. Answers are not included.
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Lesson Plan
Curated OER

Geometric Properties

For Teachers 9th - 12th
Students find triangular angles using the angle theorem. In this geometry instructional activity, students describe labeled triangles, use the pythagorean theorem, and rewrite information about triangles in standard form.
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Worksheet
Curated OER

Addition Practice

For Students K - 1st
Give your mathematicians a leg up on simple addition using this worksheet with visual aids. Similar to counting cubes, each single-digit addend is accompanied by a corresponding number of colored squares. The two colors are joined where...
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Worksheet
Curated OER

Number Lines and Whole Numbers

For Students 1st - 2nd
Number lines are a great way to help beginning mathematicians comprehend addition and subtraction. They examine an addition equation and find the sum using the number line. Learners indicate the sum on the line and write it into the...
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Worksheet
Curated OER

Addition

For Students 4th - 6th
Those are some big addends! Challenge learners to find the sum of 16 equations, each of which has at least three addends. They are adding, two, three, and four-digit numbers here, and regrouping is a given. Two example problems offer...
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Worksheet
Curated OER

Add and Subtract within 20

For Students 1st - 2nd
The sums and differences only reach 20 in this arithmetic worksheet. Scholars answer 10 simple number sentences, some involving two numbers and others with three. They choose the correct answer from a list on the right. There are the...
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Lesson Plan
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Illustrative Mathematics

Right Triangles Inscribed in Circles I

For Teachers 9th - 10th Standards
One of the basic properties of inscribed angles gets a triangle proof treatment in a short but detailed exercise. Leading directions take the learner through identifying characteristics of a circle and how they relate to angles and...
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Activity
Computer Science Unplugged

Card Flip Magic—Error Detection and Correction

For Teachers 4th - 12th
I can find the error in an array of cards? After watching a demonstration class members search for the error is the provided cards. The resource provides a real-life example of using ISBN numbers in error detection and using check sums.
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Interactive
CK-12 Foundation

Decimal Addition: Adding Little Pieces

For Students 4th - 6th Standards
A five-question interactive test scholars' knowledge of adding and subtracting decimals. A tool aids in problem-solving with movable parts that reveal addends and sums. Question types include one discussion, fill and in the blank, and...
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Worksheet
Curated OER

Math 155 Worksheet 11

For Students Higher Ed
In this college level calculus worksheet, students use Riemann Sums to evaluate the given integrals and compare the answer to the limit.  The two page worksheet contains four problems.  Answers are not provided. 
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Worksheet
Curated OER

Geometric Mean and the Pythagorean Theorem

For Students 10th
In this geometric mean and Pythagorean Theorem instructional activity, 10th graders solve 9 problems related to determining the geometric mean by applying the Pythagorean Theorem in each problem. First, they find the geometric mean...
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Worksheet
Curated OER

Show What You Know: Estimate: Enrichment

For Students 4th - 5th
In this estimating sums instructional activity, students write a greater than or less than sign to solve the addition sentences. Students first use estimation to help them compare the numbers.
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Worksheet
Curated OER

Using the Pythagorean Theorem

For Students 7th - 8th
In this using the Pythagorean Theorem worksheet, learners use the Pythagorean Theorem to find the missing information for ten right triangles.
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Worksheet
Curated OER

Area of Parallelograms

For Students 10th
In this area of parallelograms worksheet, 10th graders solve 8 problems that include finding the area of various parallelograms. First, they find the area of each given figure in number 1-3. Then, students find the area of each shaded...
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Lesson Plan
Curated OER

Suffragettes

For Teachers 8th - 12th
Students discover details about women's suffrage in Britain. In this women's right lesson, students examine a political cartoon that serves as a discussion starter for the suffrage movement in Britain. Students evaluate the strategies...
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Lesson Plan
Curated OER

The Pythagorean Theorem Lesson 2

For Teachers 8th - 12th
Learners discuss and review examples of the Pythagorean Theorem using a GSP, Geometer's Sketchpad, activity.
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Lesson Plan
Curated OER

Résumé Rights

For Teachers Higher Ed
Students build a practical resume using Microsoft Word R??sum?? Wizard. Hints useful for avoiding "r??sum?? wrongs" helps them develop the right r??sum?? for their job hunting needs.
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Worksheet
Curated OER

Sums to Ten

For Students 1st - 2nd
In these addition worksheets, students add the 1 digit numbers that have sums to 10. Students solve 100 single digit addition problems.
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Worksheet
Curated OER

Addition Practice: Sum to 10

For Students K - 2nd
In this early childhood addition practice worksheet, learners find the sum in 42 addition problems which require them to add 1 digit numbers to 1 digit numbers.
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Worksheet
Curated OER

Sums Greater Than One

For Students 3rd - 5th
In this fractions practice worksheet, students sharpen their problem solving skills as they solve 6 story problems that have sums greater than 1.
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Worksheet
Curated OER

Addition and Subtraction sums and differences

For Students 2nd - 5th
In this sums and differences worksheet, students are given a one digit number and they have to make up the addition or subtraction problem to make it equal to the number. Students complete 36 problems.