**This is the chapter slice "What is a Cell?" from the full lesson plan "Cells"** Cells are the building blocks of life. We take you from the parts of plant and animal cells and what they do to single-celled and multi-cellular organisms. Using simplified language and vocabulary concepts we discover human cell reproduction as well as diffusion and osmosis. Our resource provides ready-to-use information and activities for remedial students using simplified language and vocabulary. Ready to use reading passages, student activities and color mini posters, our resource is effective for a whole-class, small group and independent work. All of our content meets the Common Core State Standards and are written to Bloom's Taxonomy and STEM initiatives.