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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
Provider:
Ohio State University
Provider Set:
Middle School Portal
Author:
Andy Ault
Carolyn Hamilton
Terese Herrera
Arrangement 2
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Arrangement 2

In this video segment from Cyberchase, Matt tries for a second time ... (more)

In this video segment from Cyberchase, Matt tries for a second time to arrange tables and chairs to accommodate 20 workers. ***Access to Teacher's Domain content now requires free login to PBS Learning Media. (less)

Subject:
Mathematics and Statistics
Mathematics
Material Type:
Video Lectures
Provider:
PBS LearningMedia
PBS Learning Media
Provider Set:
PBS Learning Media Common Core Collection
Teachers' Domain
Author:
U.S. Department of Education
WNET
Arrangement 3
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Arrangement 3

MattŒë_í_Œ_ third table arrangement helps fit all 20 workers at five tables ... (more)

MattŒë_í_Œ_ third table arrangement helps fit all 20 workers at five tables in this video segment from Cyberchase. ***Access to Teacher's Domain content now requires free login to PBS Learning Media. (less)

Subject:
Mathematics and Statistics
Mathematics
Material Type:
Video Lectures
Provider:
PBS LearningMedia
PBS Learning Media
Provider Set:
PBS Learning Media Common Core Collection
Teachers' Domain
Author:
U.S. Department of Education
WNET
Problems of the Month: What's Your Angle
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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
Provider:
Noyce Foundation
Provider Set:
Inside Mathematics
Camp Earth Bound: Problem Solving and Finding for Fun
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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
Provider:
University of North Carolina at Chapel Hill School of Education
Provider Set:
LEARN NC Lesson Plans
Author:
Jamie Hulse
Congruent Polygons
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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
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Using a Coordinate Grid
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Using a Coordinate Grid

In this Cyberchase video segment, the CyberSquad must locate each other using ... (more)

In this Cyberchase video segment, the CyberSquad must locate each other using a mapŒë_í_Œ_ grid to construct a coordinate system using letters and numbers. ***Access to Teacher's Domain content now requires free login to PBS Learning Media. (less)

Subject:
Mathematics and Statistics
Mathematics
Material Type:
Video Lectures
Provider:
PBS LearningMedia
PBS Learning Media
Provider Set:
PBS Learning Media Common Core Collection
Teachers' Domain
Author:
U.S. Department of Education
WNET
Angle bisector
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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
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
A Walk Through the Solar System
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A Walk Through the Solar System

A practice in scientific notation, measurement, and scale distances, this lesson plan ... (more)

A practice in scientific notation, measurement, and scale distances, this lesson plan integrates mathematics into the science curriculum. (less)

Subject:
Mathematics and Statistics
Science and Technology
Material Type:
Lesson Plans
Provider:
University of North Carolina at Chapel Hill School of Education
Provider Set:
LEARN NC Lesson Plans
Author:
RhondaS Dausman
Finding the center of a circle (with compass and straightedge)
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Finding the center of a circle (with compass and straightedge)

An interactive applet and associated web page that provide step-by-step instructions on ... (more)

An interactive applet and associated web page that provide step-by-step instructions on how to find the center of a circle using only a compass and straightedge. The method used involves constructing the perpendicular bisectors of two random chords. The bisectors intersect at the center of the circle. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. 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
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Life's Percents
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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
Provider:
University of North Carolina at Chapel Hill School of Education
Provider Set:
LEARN NC Lesson Plans
Author:
Karen Mcpherson
Unit Circle and Trigonometry
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Unit Circle and Trigonometry

Unit circle is used to demonstrate trigonometric relationships. The sine and cosine ... (more)

Unit circle is used to demonstrate trigonometric relationships. The sine and cosine Functions are graphed as a Points is dragged around the circle. The six trigonometric Functions values are displayed for the radian measure of the angle swept out by moving (less)

Subject:
Mathematics and Statistics
Material Type:
Simulations
Provider:
GeoGebra
Provider Set:
GeoGebraTube
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