FOSS Module Summary

Module Summary – Animals Two by Two (CA Ed.)


The Animals Two by Two Module provides young students with close and personal interaction with some common land and water animals. Appropriate classroom habitats are established, and students learn to care for the animals. In four investigations the animals are studied in pairs. Students observe and care for one animal over time, and then they are introduced to another animal similar to the first but with differences in structure and behavior. The firsthand experiences are enriched with close-up photos of animals, some related to animals that students have observed in class and some animals that are new. This process enhances observation, communication, and comparison.


  • Develop a growing curiosity and interest in the living world around them.
  • Observe and describe the structures of a variety of common animals – fish, snails, earthworms, and isopods.
  • Compare structures and behaviors of different pairs of animals.
  • Acquire the vocabulary associated with the structure and behavior of animals.
  • Observe interactions of animals with their surroundings.
  • Describe positions of animals relative to other objects.
  • Describe properties of objects, compare them, and sort them by one physical attribute.
  • Communicate observations and comparisons orally and through drawings.
  • Handle animals carefully, and participate in the care and feeding of classroom animals.
  • Learn that stories sometimes give animals attributes they do not really have.

For a description of each investigation in the Animals Two by Two Module and the correlations to the National Science Education Standards, download the Module Overview PDF.

To view the PDF version of the module summary, you must have the Adobe Acrobat Reader plug-in. Acrobat Reader is available free from Adobe.

©2007 UC Regents