University of Regina (Canada)
University of Regina: Math Central: Surface Area to Volume Ratio
Students will investigate the relationship between surface area and volume and their application to the inner workings of real life organisms.
Science Buddies
Science Buddies: Shape Changing With the Cyber Squad
In this project, you will make 2-dimensional templates, called nets, that fold up into 3-dimensional (3-D) shapes. By making shapes of different sizes, you will be able to see how 3-D shapes change with size. In your findings you will...
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
Math Open Reference
Math Open Reference: Cone
Use this interactive tool to explore cones. Change the height and the radius to see how these affect the cone. There is also the option of making an oblique cone. Properties of a cone are discussed, how to use formulas to calculate the...
Math Open Reference
Math Open Reference: Prism
Use this interactive tool to explore prisms. Change the height and the shape of the base to see how these affect the prism. There are also several additional options, e.g., making it oblique or transparent. Properties of a prism are...
National Health Museum
Access Excellence: Modeling Limits to Cell Size
Why can't cells continue to grow larger and larger to become giant cells, like a blob? Why are most cells microscopic in size? Find out answers to these questions through this "hands-on" activity that simulates the changing relationship...