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Helium Balloon Race

For Teachers 7th - 8th
Students determine the force of a helium balloon that allows it to rise a specific distance.  In this helium lesson students calculate the amount of paper needed to construct a weight and determine the density of a piece of paper. 
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Lesson Plan
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Dividing Line Segments into n Congruent Parts

For Teachers 9th - 10th
Young scholars identify lines, and line segments. In this geometry lesson, students divide line segments into equal congruent parts. They complete a laboratory activity dealing with lines and segments.
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Lesson Plan
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Shape Matters More!

For Teachers 3rd - 5th
Students investigate shapes as the area changes while the perimeter remains the same. Students demonstrate the shape/perimeter/area relationship using simulations and physical models.
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Lesson Plan
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Egyptian Weather Lesson

For Teachers 6th - 8th
Students chart temperatures in Egypt on spreadsheet to determine how weather conditions affect lifestyles.
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Lesson Plan
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Perimeter

For Teachers 3rd - 7th
Students explore the concept of perimeter. In this perimeter lesson, students discuss how to find perimeter of various shapes. Students use the Perimeter Explorer applet to find the perimeter of various shapes.
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Lesson Plan
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Solving Intercepted Arcs

For Teachers 9th - 11th
Students investigate circles and its arcs. In this geometry instructional activity, students identify the relationship between an circle and its intercepted arcs. THey identify the central and inscribed angles.
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Lesson Plan
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Equivalent Fractions

For Teachers 3rd - 6th
Students describe importance of fractions in everyday life by identifying equivalent fractions and manipulating pizza pieces to show examples of equivalent fractions, and demonstrate knowledge of how whole can be divided into equal-sized...
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Lesson Plan
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Area And Perimeter Powerpoint

For Teachers 3rd - 5th
Young scholars engage in a study using technology in order to attempt the comprehension of using perimeter and area. They use powerpoint to solve different problems. This helps to keep learners engaged in the process of practice and...
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Lesson Plan
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Introduction to Time

For Teachers K - 1st
Young scholars explore the concept of time. Through discussion and artistic projects, they define time in their own words and tell how it is used to represent the seasons. Students draw a picture to portray time as it elapses during...
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Lesson Plan
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Tessellations

For Teachers 9th - 10th
Students create tessellations. In this geometry lesson, students use polygons to create different patterns by rotation. They identify the reasons for polygons to create the type of tessellation it does.
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Lesson Plan
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Volumes of Prisms and Cylinders

For Teachers 8th - 10th
Students calculate the volume of prisms and cylinders. In this geometry lesson, students are give part of the formula, and must calculate the missing parts. They use 80% accuracy for their dimensions.
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Lesson Plan
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Clock Arithmetic and Cryptography

For Teachers 9th - 12th
Students investigate modular clock arithmetic and cryptography. They perform basic operations in modular (clock) arithmetic and encode and decode messages using simple shift and affine ciphers.
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Lesson Plan
Curated OER

Commutative Property

For Teachers 1st
First graders investigate the Commutative Property of Addition. It is introduced using models such as students, counters, balances and dominoes. They discover the order of the numbers in an addition sentence does not change the result...
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Lesson Plan
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Introduction to Estimation and Making Arrays

For Teachers 2nd - 3rd
Students explore the concept of estimating and organizing a group of objects into an array to count the exact number of items. They create their own arrays and practice elements of estimation.
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Lesson Plan
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Clock Arithmetic and Cryptography

For Teachers 8th - 10th
Students explore the concept of modular arithmetic and cryptography. In this modular arithmetic and cryptography lesson, students use applets to explore modular arithmetic using a clock and Caesar Ciphers. Students exchange their ciphers...
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Using Concept Maps to Design 3D Spheres

For Teachers 9th - 12th
Students create three dimensional shapes using concept maps. For this geometry lesson, students investigate the impact of mental schemas on humans. They collect data on this topic and plot their data on a coordinate plane.
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How Do They Relate? Linear Relationship

For Teachers 8th - 10th
Students collect information and use a line to represent it. In this algebra lesson, students investigate real world data to see if it makes a line. They graph the line comparing the relationship of the x axis with that of the y axis.
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Lesson Plan
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Fraction Clue Box

For Teachers 5th - 8th
Students distinguish between proper and improper fractions. They create a "Character Clue Box" that represents a fraction. Fractions are picked from a hat and then groups go outside and search for items that represent their fraction....
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Algebra- Cell Phone Plans

For Teachers 9th - 12th
Students analyze graphs to compare cell phone plans. In this algebra lesson, students work together to analyze phone plans and report the best phone plan. Students develop tables and graphs.
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Lesson Plan
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A Relatively Far Out Idea: Estimating

For Teachers 4th - 5th
Students investigate methods of estimating through cooperative group activities, hands-on activities, the use of tables and graphs and an interactive video.
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Making Shapes

For Teachers 10th
Tenth graders construct geometric figures using compasses and protractors.
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Tiling the Plane

For Teachers 5th
Fifth graders use pattern blocks and triagular grid paper to reivew shape names, be introduced to the concept of a tiling of the plane, and determine which pattern blocks tile the plane. They are asked if they comprehend what a...
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Cafeteria Mayhem

For Teachers 9th - 12th
High schoolers design a cafeteria floor plan. In this area and perimeter lesson, groups create an efficient lunchroom layout on poster board by using geometric shapes and formulas as the basis for their designs. In the accompanying...
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Lesson Plan
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Modular Arithmetic

For Teachers 5th - 6th
Learners investigate modular arithmetic and how to use it to solve real world problems. In this modular arithmetic activity, students use computers to work on modular arithmetic after a teacher guided activity. They complete guided...

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