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  • Plane Geometry
Kite
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An interactive applet and associated web page that show the properties of ...

An interactive applet and associated web page that show the properties of a kite, (a quadrilateral with two distinct pairs of equal adjacent sides). The applet shows a kite and the user can reshape it by dragging any vertex. The other vertices move automatically to ensure it always remains a kite. The web page lists the properties of the kite. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Laser Jello
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In this activity, learners use gelatin as a lens to investigate the ...

In this activity, learners use gelatin as a lens to investigate the properties of laser light. Learners can view total internal reflection of a beam of light and investigate angles of reflection and refraction. Using different colors of gelatin demonstrates its color filtering properties. Use this activity to help learners explore light reflection and refraction, wavelengths, color, and lenses.

Subject:
Education
Life Science
Mathematics
Chemistry
Physics
Science and Technology
Material Type:
Activities and Labs
Instructional Material
Provider:
Exploratorium
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
California Department of Education
Heidi Strahm Black
National Science Foundation
NEC Foundation of America
The Exploratorium
Launch It
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In this design challenge activity, learners use a balloon and other simple ...

In this design challenge activity, learners use a balloon and other simple materials to design an air-powered rocket that can hit a distant target. Learners are encouraged to consider how rocket length, number of fins, additional weight and launch angle will affect travel distance. The associated leader's guide relates this challenge to NASA and lunar spacecraft.

Subject:
Engineering
Technology
Education
History, Law, Politics
Mathematics
Chemistry
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
NASA
National Science Foundation
WGBH
Let's Face It
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In this math lesson, learners identify, describe, and construct the five regular ...

In this math lesson, learners identify, describe, and construct the five regular polyhedra. Learners are introduced to the idea of three-dimensional figures by first reviewing polygons and regular tessellations. Comparisons are made between regular tessellations and five special polyhedra, the Platonic Solids. Using nets as blueprints, learners construct the polyhedra and record the number of faces, edges, and vertices of each. Finally, they identify a relationship between the number of faces, edges, and vertices (Euler's formula).

Subject:
Education
Mathematics
Geometry
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
PBS
US Department of Education
Line
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An interactive applet and associated web page that demonstrate the definition of ...

An interactive applet and associated web page that demonstrate the definition of a line. The applet presents two points and a line that passes through them extending to infinity in both directions. As the points a re dragged the line moves but it is never possible to reveal a line end. See also the entries for line segment and ray. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Line Segment
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An interactive applet and associated web page that demonstrate the definition of ...

An interactive applet and associated web page that demonstrate the definition of a line segment. The applet presents two points and a line that links them. As the points are dragged the line moves accordingly. See also the entries for line and ray. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Line Segment definition (Coordinate Geometry)
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An interactive applet and associated web page that show the definition of ...

An interactive applet and associated web page that show the definition of a line segment in coordinate geometry. The applet has two points that the user can drag. The two points define a line segment, one for each endpoint. The grid, axis pointers and coordinates can be turned on and off. The applet can be printed as it appears on the screen to make handouts. The web page has a full definition of a line segment when the coordinates of the points defining it are known, and has links to other pages relating to coordinate geometry. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Linear Pair of Angles
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An interactive applet and associated web page that demonstrate a linear pair ...

An interactive applet and associated web page that demonstrate a linear pair of angles. A pair of angles are shown and the user can drag the common side. It demonstrates that they a supplementary (add to 180 degrees) and have a common side. The angle measures can be turned off for class discussion. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Linear function graph display
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An interactive applet that allows the user to graphically explore the properties ...

An interactive applet that allows the user to graphically explore the properties of a linear functions. Specifically, it is designed to foster an intuitive understanding of the effects of changing the two coefficients in the function y=ax+b. The applet shows a large graph of a quadratic (ax + b) and has two slider controls, one each for the coefficients a and b. As the sliders are moved, the graph is redrawn in real time illustrating the effects of these variations. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Line bisector
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An interactive applet and associated web page that demonstrate a bisector of ...

An interactive applet and associated web page that demonstrate a bisector of a line segment. The applet shows a fixed line segment and another line that bisects it. The second line's endpoints can be dragged, but the line adjusts itself so that it always bisects the fixed line. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Line definition (Coordinate Geometry)
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An interactive applet and associated web page that show the definition of ...

An interactive applet and associated web page that show the definition of a line in coordinate geometry. The applet has two points that the user can drag. The two points define a line, and the user can see how the line changes when the points are moved. The grid, axis pointers and coordinates can be turned on and off. The applet can be printed as it appears on the screen to make handouts. The web page has a full definition of a line when the coordinates of the points defining it are known, and has links to other pages relating to coordinate geometry. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Linking Length, Perimeter, Area, and Volume
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This sequence of four lessons is designed to help students to understand ...

This sequence of four lessons is designed to help students to understand ratio, proportion, scale factor, and similarity. Using online activities, they compare the perimeter and area ratios of similar rectangles with various scale factors; work with scale factor and surface area of various rectangular prisms; explore the relationship between the volume of two similar rectangular prisms; and examine the connection between the surface area of two similar rectangular prisms. All instructions, needed links, and activity sheets are provided.

Subject:
Geometry
Numbers and Operations
Mathematics and Statistics
Material Type:
Activities and Labs
Lesson Plans
Teaching and Learning Strategies
Provider:
National Council of Teachers of Mathematics
Provider Set:
Illuminations
Locus
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A web page and interactive applet that illustrate the concept of locus. ...

A web page and interactive applet that illustrate the concept of locus. The applet shows a model of the plane populated with a large number of points on a grid. Those points equidistant form a point are highlighted, forming a circle in this case. The user can drag the point and drag the distance, showing the circle moving and changing size. The text page has a description of the locus concept and links to other loci - a straight line and an ellipse. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Look Into Infinity
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Learners use two mirrors to explore how images of images of images ...

Learners use two mirrors to explore how images of images of images can repeat forever. This resource includes a light-ray diagram to help learners understand what they are seeing -- images appear to be grouped in pairs with a front side always facing a front side and a back side always facing a back side. Learners can assist in assembling the Infinity Mirror or use one that has been pre-assembled.

Subject:
Life Science
Mathematics
Chemistry
Physics
Science and Technology
Psychology
Social Sciences
Material Type:
Activities and Labs
Instructional Material
Provider:
Exploratorium
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
California Department of Education
National Science Foundation
NEC Foundation of America
The Exploratorium
Looking Through the Algebraic Lens
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In this two-part math lesson, learners investigate problems that foster algebraic thinking ...

In this two-part math lesson, learners investigate problems that foster algebraic thinking across content strands. In the first part, learners explore even and odd numbers linked to quilts. Learners work with rectangles to find generalizations for adding and subtracting odd and even numbers. In the second part, learners use geoboards to construct polygons, look for patterns, and find a general rule.

Subject:
Education
Mathematics
Algebra
Geometry
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
PBS
US Department of Education
Lost in the Northern Frontier
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In this online math game from Cyberchase, Digit is lost in the ...

In this online math game from Cyberchase, Digit is lost in the Northern Frontier! Learners use the power of circles to find the intersection point to locate Digit. Learners draw overlapping circles to help the CyberSquad find everyone's favorite cyboid.

Subject:
Education
Mathematics
Geometry
Physics
Material Type:
Activities and Labs
Games
Instructional Material
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
Corporation for Public Broadcasting
Ernst & Young LLP
National Science Foundation
Northrop Grumman Corporation
PBS
The Volckhausen Family
WNET
The Magic Box
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In this math lesson, learners participate in a variety of activities that ...

In this math lesson, learners participate in a variety of activities that give them experience in recognizing, describing, and extending repeating and arithmetic patterns. Learners begin by describing patterns they find in the room. Next, learners describe the arithmetic or numerical pattern they observe in a skipped rope. Learners also explore patterns as they sing, clap and identify patterns in the educator's "magic box." They are given shapes and challenged to extend the pattern started by the educator. Learners then work at centers to further investigate patterns. Center activities include photographing patterns found outside, stringing beads in patterns, making creations with Tinker Toys and Lincoln Logs, exploring patterns on the computer, reading the "Patchwork Quilt" and creating quilt patterns, and making new patterns for the "Magic Box." (Note: the computer center should be skipped because it does not seem possible to buy the Patternmakers software. The loss of this center will not significantly impact the activity.)

Subject:
Education
Mathematics
Geometry
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
PBS
US Department of Education
Magnetic Marble Run
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Learners explore magnetism and motion as they build a simple marble run. ...

Learners explore magnetism and motion as they build a simple marble run. Learners test different arrangements of plastic and cardboard tubes, bottles, and cups on a magnetic board. Learners use their marble tracks to investigate gravity, friction, motion, and momentum.

Subject:
Engineering
Technology
Education
History, Law, Politics
Mathematics
Chemistry
Physics
Space Science
Material Type:
Activities and Labs
Instructional Material
Lesson Plans
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
Community Science Workshop Network
Oakland Discovery Centers
Major / minor axis of an ellipse
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An interactive applet and associated web page that show the major and ...

An interactive applet and associated web page that show the major and minor axes of an ellipse. The applet has an ellipse whose major and minor axis endpoints can be dragged. As they are dragged the major and minor axes change length and may swap places. The applet also shows the location of the foci, which are always on the major axis, and shows how they move with variation of the axis lengths. 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.

Subject:
Geometry
Mathematics and Statistics
Material Type:
Readings
Simulations
Provider:
Math Open Reference
Provider Set:
Math Open Reference
Author:
John Page
Make Ziff's Carpenter's Square
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In this Cyberchase activity, learners make carpenter's squares and use them to ...

In this Cyberchase activity, learners make carpenter's squares and use them to measure square corners. Learners cut out the carpenter's square template and attach it to tagboard. Learners can use the tool to complete the "Square One" activity (see related resource) or measure square corners in the room.

Subject:
Engineering
Technology
Mathematics
Material Type:
Activities and Labs
Instructional Material
Provider:
Science and Math Informal Learning Educators (SMILE)
Provider Set:
SMILE Pathway: Science and Math Activities in One Search
Author:
Corporation for Public Broadcasting
Ernst & Young LLP
National Science Foundation
Northrop Grumman Corporation
PBS
The Volckhausen Family
WNET