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Evaluated
Read the Fine Print
-
(Complete Item Description)
- Abstract:
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.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
-
TeachEngineering
Read the Fine Print
-
(Complete Item Description)
- Abstract:
To display the results from the previous activity, 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.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
-
TeachEngineering
Read the Fine Print
-
(Complete Item Description)
- Abstract:
An interactive applet and associated web page that demonstrate the properties of a cube. A 3-D cube is shown in the applet which can be interactively manipulated using the mouse. Research has shown that some younger students have difficulty visualizing the parts of a 3D object that are hidden. To help with this, the student can rotate the cube in any axis simply by dragging it with the mouse. It can also be 'exploded' - where a slider gradually separates the faces to reveal the ones behind. The cube can also be made translucent so you see through it to the other side. Applet can be enlarged to full screen size for use with a classroom projector, and printed to make handouts. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
- Subject:
- Mathematics and Statistics
- Grade Level:
- Primary, Secondary
- Collection:
-
Math Open Reference
Evaluated
Read the Fine Print
-
(Complete Item Description)
- Abstract:
In this video segment from Cyberchase, two friends make rock candy while learning about 2-D and 3-D shapes.
- Subject:
- Mathematics and Statistics
- Grade Level:
- Primary, Secondary
- Collection:
-
Teachers' Domain
Read the Fine Print
-
(Complete Item Description)
- Abstract:
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.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
-
TeachEngineering
Evaluated
Remix and Share
-
(Complete Item Description)
- Abstract:
The students will review solid figures using a baggie of assorted snack mix (cones, cubes, cylinders, and spheres) and will begin a vertical bar graph showing the number of each solid figure in a bag of assorted snack mix.
- Subject:
- Mathematics and Statistics
- Grade Level:
- Primary
- Collection:
-
LEARN NC Lesson Plans
Read the Fine Print
-
(Complete Item Description)
- Abstract:
Watch the ZOOM cast discover which insulator -- newspaper or aluminum foil -- is better at keeping an ice cube frozen longer.
- Subject:
- Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
-
Teachers' Domain
Read the Fine Print
-
(Complete Item Description)
- Abstract:
An interactive applet and associated web page that demonstrate the volume of a cube. A cube is shown where the edge length be changed by dragging. The volume is continuously recalculated as you drag, and a unit cube grid is superimposed on the cube to illustrate the volume graphically. The calculations can be turned off for class discussion. The web page has the formula for the volume calculation, and a discussion about the subtle distinction between the volume of a cube and the volume inside the cube. The web page also has links to other pages defining the various properties of an ellipse and to some ellipse constructions. 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:
- Mathematics and Statistics
- Grade Level:
- Secondary
- Collection:
-
Math Open Reference
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Copyrighted materials, available under Fair Use and the TEACH Act for US-based
educators, or other custom arrangements. Go to the resource provider to see
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