Provides real world examples of symmetry in architecture, including pictures of each kind of symmetry, examples, acknowledgements, and a bibliography.

Use this internet lesson to explore different types of symmetry in nature. Learners examine line symmetry, rotational symmetry, and bilateral symmetry. An integrated math, language art, and art lesson. Acrobat Reader required.

[Free Registration/Login may be required to access all resource tools.] Identify line, bilateral, and rotational symmetry.

Sharpen your logic, symmetry, and pattern recognition skills while working on this challenge. Solution included.

On this one page website expand your logic, symmetry and pattern recognition knowledge while working on this challenge. The solution is available to double check your solution.

[Free Registration/Login may be required to access all resource tools.] The word "worm" is not very scientific. But it is a word that informally describes animals (usually invertebrates) that have long bodies with no arms or legs. Worms...

This general overview of the arthropod phylum, which includes insects and arachnids, looks at such topics as body symmetry, appendages, movement, respiratory and nervous systems, and reproduction.

This online biology book chapter offers definitions and descriptions of the nervous system's components.

College-level instructor's notes on how animal body plans have changed over time through the process of evolution.

Describes the characteristics and anatomy of organisms in the phylum Platyhelminthes.

This encyclopedia article from Wikipedia provides a general overview of squid. Content includes a focus on their physical characteristics, diet, and habitat.

High school level description of the phylum Platyhelminthes, or flatworms, including characteristics, reproduction, and class.