This two day lesson reviews the levels of organization in living things from: atom-->molecule-->organelle-->cell-->tissue-->organ-->organ system-->organism.
Day 1: Students will cut out flashcards and write definitions for each level of organization using their textbook glossaries or the information that can be found at http://www.dummies.com/how-to/content/building-the-body-from-atoms-to-organs.html. A discussion will ensue about each level of organization and how atoms ultimately result in a human organism (teacher should give examples of items in each level; i.e. atom = carbon, molecule = glucose, organelle = mitochondrion, cell = eukaryote, etc.). Teacher should explain that tomorrow students will be looking at one of the 4 types of tissues found in human organs (nervous, muscle, connective, epithelial).
Day 2 - Students will cut out the two boxes from the attached worksheet and glue these into their science notebook in the proper order. These boxes include a visual representation of the levels of organization in the form of illustrations, arrows, and text. Students will then be given the rest of the period to complete the Microscope Lab in which they will be examining various tissue samples. (If human tissue samples are not available, this can be modified to include another mammal's tissues). For homework, students will complete the example worksheet to reinforce concepts.