Nanotechnology and Human Health

CONTENTS OF CURRICULUM UNIT 10.05.04

  1. Unit Guide
  1. Introduction
  2. Nanotechnology Background
  3. Explanation of Quantum Mechanics
  4. Advanced Quantum Mechanical Concepts
  5. Strategies
  6. Classroom Activities
  7. Endnotes
  8. Resources
  9. Appendix- National Standards (NSES)

Nanotechnology and Quantum Mechanics: Bringing High School Physics into the 21st Century

Eric J. Laurenson

Published September 2010

Tools for this Unit:

Strategies

In this unit on quantum mechanics, I will utilize a constructivist approach. Constructivism suggests that learners take in knowledge superficially and apply it to their existing framework even if that contains fundamental misconceptions and contradictions known as assimilation, or a learner can actively utilize the knowledge to reframe their world view which is known as accommodation. The goal is for the student to construct as comprehensive and consistent a world view as possible. This approach recognizes that the learner comes with a vast set of preconceptions about their world. In order to have some influence over how the information that we are presenting as educators is processed, we must actively attempt to understand the students' preconceptions and misconceptions. Then we must actively engage the students world view if we are to have a lasting impact on their thinking process. My main emphasis in teaching physics is to address my students' critical thinking skills. Physics attempts to address the fundamental nature of our reality, but our experiential knowledge is often deceptive or contrary to the "Laws" of physics, especially quantum mechanics. Consequently, it is apparent to me as an educator that we must address the learner as a comprehensive being with a tremendous amount of inclination to sustain their current world view. This is natural in human beings. But the scientific pursuit requires that we are open to accepting the experimental evidence about the world around us and to have a more comprehensive understanding of the world we inhabit even when a large part of the knowledge is conceptual.

So how do we begin to affect our students' world vision? Well, it is clear that first we must make learning an active process. It is essential that we engage our students as deeply and profoundly in the educational process as possible. How can this be done? It is my belief that we must stimulate their inherent desire to learn. It is only if we activate this passion for learning that students will invest enough of themselves to begin the process of allowing their learning to transform their vision of how the world is constructed. So students must be forced slightly beyond their comfort zone, known by Piaget as the "zone of proximal learning". This is the place where students are emotionally invested in what they are learning and in the space in which learning matters. It is my goal for my students to evaluate their views and to attempt to make their understanding as comprehensive and consistent as possible, and to incorporate at least parts of quantum mechanics.

How do we get students to engage at this level? I believe that constructivist, hands-on learning is primary. Students must engage on a multitude of levels including a physical level. They must be presented with problems that are meaningful, relevant and which they are compelled to attempt to resolve. Thus the teacher must act as a facilitator acknowledging the role of prior knowledge to stimulate students to incorporate new learning into altering their world view. The students must be encouraged to construct their new world view and this is strongly based on motivation. It cannot occur passively.

Students are most motivated by topics that are relevant to them, that stimulate their imagination and enable them to further their understanding of the world around them. I am convinced that the challenge that grasping and incorporating quantum mechanics into their world view is inevitably active. It allows me to frame many realms of physics knowledge in terms that are unexpected, relevant and pertinent.

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