Lasers saving sight
http://www.sciencenetlinks.com/lessons.cfm?DocID=123
A lesson plan for Grades 9–12 Biology
About this resource
- Appropriate grades
- 9–12
- Subjects
- science (biology and life science), thinking skills (information literacy, research skills)
- Provider
- American Association for the Advancement of Science
Legal
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In this lesson, students learn that problems are solved, or new technology discovered, by scientists studying disciplines other than their own. In addition to reviewing the basic biology of the human eye, this activity challenges students to better understand the idea that laser surgery can be a treatment for saving sight. After students have listened to or read three Science Updates, they decide what all the stories have in common and use the new knowledge to answer questions from the “Preserving the Miracle of Sight” webpage found on the Beyond Discovery website. Finally, students write an essay in response to a paragraph about how technological breakthroughs can advance the field of science and use online scientific journals to support their analysis. Science NetLinks provides student handouts, detailed instructions for completing the lesson, and links to all web resources necessary for research. This lesson also contains a link to “Everyday Lasers” from the Tech Museum of Innovation.
North Carolina Curriculum Alignment
Science (2005)
Grades 9–12 — Biology
- Goal 1: The learner will develop abilities necessary to do and understand scientific inquiry.
- Objective 1.01: Identify biological questions and problems that can be answered through scientific investigations.
- Objective 1.02: Design and conduct scientific investigations to answer biological questions.
- Create testable hypotheses
- Identify variables.
- Use a control or comparison group when appropriate.
- Select and use appropriate measurement tools.
- Collect and record data.
- Organize data into charts and graphs.
- Analyze and interpret data.
- Communicate findings.
- Objective 1.03: Formulate and revise scientific explanations and models of biological phenomena using logic and evidence to:
- Explain observations.
- Make inferences and predictions.
- Explain the relationship between evidence and explanation.
- Objective 1.05: Analyze reports of scientific investigations from an informed, scientifically literate viewpoint including considerations of:
- Appropriate sample.
- Adequacy of experimental controls.
- Replication of findings.
- Alternative interpretations of the data.
