Overview
This lesson consists of two activities linked by classroom  discussion. Its purpose is to engage students in the general topic of  technology. The first activity involves classroom discussion and a short  scenario to allow students to develop a sense of what technology is and  to dispel the notion that technology relates mostly to computers. The  second activity introduces students to the concept of scale by using the  classroom to repre-sent a cell and other smaller objects to represent  subcellular components.
Major Concepts
Technology is a body of knowledge used to create tools, develop  skills, and extract or collect materials. It is also the application of  science (the combination of the scientific method and material) to meet  an objective or solve a problem. Scale is a way to represent the  relationship between the actual size of an object and how that size is  characterized, either numerically or visually.
Objectives
After completing this lesson, students will
- be able to explain what technology is,
 - recognize that human intervention is the common bond among technologies, and
 - describe the use of scale to distinguish between objects of different size.
 
Teacher Background
See the following sections in Information about Using Technology to  Study Cellular and Molecular Biology:
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Categories: 
technology introduction