Overview
The content for the fourth grade lessons was developed by Ms. Maeda's 3rd period English class, a group of 25 freshmen from the Thomas Jefferson High School for Science and Technology who taught the material given here at James Oyster Bilingual Elementary School in Washington, D.C. Included are general lesson plans as well as the outlines for various activities and games used to reinforce the lessons; all of them may be accessed through the links on the left side of the page.

Coloring Cells
Coloring Cell Diagrams

Comparing Cells and Engines
Comparing Cells and Engines

Looking in a Microscope
Looking into a Microscope