FOSS Module Summary

Module Summary – Trees (CA Ed.)


The giant sequoia is the most massive living organism on Earth. It is a tree, magnificent in dimension and awe inspiring in its longevity and durability. To stand in the company of such giants is to experience the scale of life. To a kindergartner the oak on the corner, the pines at the park, and the mulberry trees at school are giants. Systematic investigation of trees over the seasons will bring students to a better understanding of trees' place at school and in the community. Students will observe changes in weather day to day, over the year, and the impact weather has on living things. Students will have some solid experiences to help them know plants and their place on Earth.


  • Develop a growing curiosity and interest in the living things that make up their world.
  • Observe and describe the properties of trees and leaves in the schoolyard and acquire the vocabulary associated with the properties and structures of trees and leaves.
  • Compare the similarities and differences of the trees and leaves observed on mini–field–trips.
  • Help plant and care for a tree temporarily in the classroom, then permanently in the schoolyard.
  • Observe trees and weather throughout the school year for changes that come daily and with the different seasons.
  • Compare the shapes of leaves to geometric shapes.
  • Compare the size and edges of leaves, using a reference card.
  • Use pictorial experiences to heighten their awareness of the diversity and variety of trees, leaves, and landforms.
  • Use drawings and oral language to describe observations.

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

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