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Angle bisector

Angle bisector

An interactive applet and associated web page that demonstrate the bisector of ... (more)

An interactive applet and associated web page that demonstrate the bisector of an angle. An angle is shown using two line segments that can be dragged to change the angle measure. The angle is bisected by a line which moves while dragging to always divide the angle into two equal angles. The angle measures can be turned off for class discussions. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com. (less)

Subject:
Mathematics and Statistics
Material Type:
Readings
Simulations
Collection:
Math Open Reference
Provider:
Math Open Reference
Author:
John Page
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Camp Earth Bound: Problem Solving and Finding for Fun

Camp Earth Bound: Problem Solving and Finding for Fun

Students will work together in small groups of four to six students ... (more)

Students will work together in small groups of four to six students to solve the following word problems. Their solutions will require them to practice interview techniques and create a database and/or spreadsheet of their results. This information will be the basis of the answers to the following eight word problems. Skills such as area, cost, calorie count, ratio, percentage and scale, as well as persuasive writing will be applied. (less)

Subject:
Mathematics and Statistics
Material Type:
Lesson Plans
Collection:
LEARN NC Lesson Plans
Provider:
University of North Carolina at Chapel Hill School of Education
Author:
Jamie Hulse
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Life's Percents

Life's Percents

Students will gather data from their own lives to use in calculating ... (more)

Students will gather data from their own lives to use in calculating percents. They will measure parts of their bodies (head, leg, neck, etc.), complete a class survey that asks information about themselves, and use a pay stub to find percentages of deductions. (less)

Subject:
Mathematics and Statistics
Material Type:
Lesson Plans
Collection:
LEARN NC Lesson Plans
Provider:
University of North Carolina at Chapel Hill School of Education
Author:
Karen Mcpherson
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Congruent Polygons

Congruent Polygons

An interactive applet and associated web page that demonstrate the congruence of ... (more)

An interactive applet and associated web page that demonstrate the congruence of polygons. The applet presents nine polygons that are in fact congruent, but don't look it because they are reflected and rotated in various ways. If you click on one, it rotates and flips as needed, then slides over the top of another to show it is congruent. The web page describes how to determine if two polygons are congruent. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com. (less)

Subject:
Mathematics and Statistics
Material Type:
Readings
Simulations
Collection:
Math Open Reference
Provider:
Math Open Reference
Author:
John Page
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Going around in circles!: around and about a geometric figure

Going around in circles!: around and about a geometric figure

Geometry can be an exercise arena for strengthening those logic muscles that ... (more)

Geometry can be an exercise arena for strengthening those logic muscles that middle school students need to flex. When we work with a geometric figure—a circle, for instance—and apply the ancient tools of compass and straightedge, geometry can become a rich ground for developing design. And a circle has size, so a unit on this topic necessarily brings in the mathematics of its measurement. Circles, then, is a geometric topic that can provide mental challenge, opportunity for artistic development, and connections to both the history of measurement and its everyday applications. For this unit we have selected online activities that will enable your students to look at circles from these various viewpoints. The activities range from measurement to theorems about the circle to art and symmetry. Many will engage students in solving problems or in creating designs. Others will allow them to investigate the thinking behind the area and circumference formulas, either through virtual simulations or hands-on projects. We hope these activities will add to your repertoire of ways to present the "many-sided" topic of circles. (less)

Subject:
Mathematics and Statistics
Material Type:
Teaching and Learning Strategies
Collection:
Middle School Portal
Provider:
Ohio State University
Author:
Andy Ault
Carolyn Hamilton
Terese Herrera
Regression

Regression

This applet from Statistical Java allows the user to generate bivariate data ... (more)

This applet from Statistical Java allows the user to generate bivariate data for analysis with simple linear regression. The page describes the equations used to generate the data and estimate the regression lines. (less)

Subject:
Mathematics and Statistics
Material Type:
Simulations
Collection:
Causeweb.org
Provider:
Virginia Tech - Department of Statistics
Author:
C.Anderson-Cook
S.Dorai-Raj
T.Robinson
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Boxed In and Wrapped Up

Boxed In and Wrapped Up

Students find the volume and surface area of a rectangular box (e.g., ... (more)

Students find the volume and surface area of a rectangular box (e.g., a cereal box), and then figure out how to convert that box into a new, cubical box having the same volume as the original. As they construct the new, cube-shaped box from the original box material, students discover that the cubical box has less surface area than the original, and thus, a cube is a more efficient way to package things. Students then consider why consumer goods generally aren't packaged in cube-shaped boxes, even though they would require less material to produce and ultimately, less waste to discard. To display their findings, each student designs and constructs a mobile that contains a duplicate of his or her original box, the new cube-shaped box of the same volume, the scraps that are left over from the original box, and pertinent calculations of the volumes and surface areas involved. The activities involved provide valuable experience in problem solving with spatial-visual relationships. (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Lesson Plans
Collection:
TeachEngineering
Provider:
TeachEngineering
Author:
Mary R. Hebrank
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Problems of the Month: What's Your Angle

Problems of the Month: What's Your Angle

These geometry and measurement problems of the month are designed to be ... (more)

These geometry and measurement problems of the month are designed to be used schoolwide to promote a problem-solving theme at your school. Each problem is divided into five levels, Level A through Level E, to allow access and scaffolding for the students into different aspects of the problem and to stretch students to go deeper into mathematical complexity. (less)

Subject:
Mathematics and Statistics
Material Type:
Activities and Labs
Collection:
Inside Mathematics
Provider:
Noyce Foundation
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CTE Architecture: Fences

CTE Architecture: Fences

This task was developed by high school and postsecondary mathematics and design/pre-construction ... (more)

This task was developed by high school and postsecondary mathematics and design/pre-construction educators, and validated by content experts in the Common Core State Standards in mathematics and the National Career Clusters Knowledge & Skills Statements. It was developed with the purpose of demonstrating how the Common Core and CTE Knowledge & Skills Statements can be integrated into classroom learning - and to provide classroom teachers with a truly authentic task for either mathematics or CTE courses. (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Activities and Labs
Homework and Assignments
Lesson Plans
Collection:
Career Technical Education
Provider:
National Association of State Directors of Career Technical Education Consortium
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Beginning Algebra Videos

Beginning Algebra Videos

Visually searchable database of Algebra 1 videos. Click on a problem and ... (more)

Visually searchable database of Algebra 1 videos. Click on a problem and watch the solution on YouTube. Copy and paste this material into your CMS. Videos accompany the open Elementary Algebra textbook published by Flat World Knowledge. (less)

Subject:
Mathematics and Statistics
Material Type:
Lecture Notes
Video Lectures
Collection:
Individual Authors
Provider:
Individual Authors
Author:
John Redden
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Simple Fractions

Simple Fractions

Simple fractions presented with graphic diagram. Denominators run from 1 to 15 ... (more)

Simple fractions presented with graphic diagram. Denominators run from 1 to 15 (Can be edited) and numerators run from 1 to denominator's value. A reduced fraction may be selected with a check box. (less)

Subject:
Mathematics and Statistics
Material Type:
Simulations
Collection:
GeoGebraTube
Provider:
GeoGebra
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2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

2002 llaF ,gnivloS melborP gnireenignE dna sretupmoC ot noitcudortnI

.desu si egaugnal gnimmargorp avaJ ehT .gninnalp dna ,tnemeganam ,ecneics ,gnireenigne ni ... (more)

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Subject:
Science and Technology
Material Type:
Assessments
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Collection:
MIT OpenCourseWare
Provider:
M.I.T.
Author:
George Kocur
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