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NanoLeap: Nanoscale Materials and Their Properties
Field Test Trials 2007-2008
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WelcomeJohn Ristvey, PI, [email protected]
Christine Morrow, CoPI, SMART [email protected]
Elisabeth Palmer, Evaluation Lead, ASPEN [email protected]
Suzanne Joyce, Evaluation Coordinator, ASPEN [email protected]
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Overview
• Goals of the Project• Development Process• Curriculum Fit• Module Overview• Materials• Communication (Ecampus-Learning Street)• Evaluation
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Project Goals
• To explore where nanoscale science, technology, engineering, and mathematics concepts can fit into high school physical science and chemistry classes in a manner that supports students in learning core science concepts.
• To determine a viable approach for instructional materials development in the areas of nanoscale science, technology, engineering, and mathematics.
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Development Process
Year 1
Year 2Year 3 Year 4
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Our Team
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Module Overview
Nanoscale Materials and their Properties
• Chemistry:– “How and why do the chemical and physical
properties of nanosamples differ from those of macrosamples of the same substance?"
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Flow ChartModule Overview
Lesson 1.2 What makes nanoscience so different?
What makes Nanoscience so different?Compare Newtonian and Quantum Chemistry Regimes as they relate to nanoscale science
Lesson 1.3 What makes Nanoscience so important?
Interdisciplinary science The development of new technologies and instrumentation applications whose risk and benefits have yet to be determined
Lesson 1.1 What is Nanoscience?
What is Nanoscience? Examine and Compare size: macro, micro, sub-micro (nano)SI prefixes
Lesson 2.2 Extendable Solids: Reactivity, Catalysis, Adsorption
The difference between the energy at the surface atoms and energy of the interior atoms results in increased surface energy at the nanoscale
Higher surface energy allowing for increased reactivity, adsorption and catalysis at the nanoscale
Unit 3.2 Fullerenes and Nanotubes
Fullerenes and nanotubes are a family of carbon allotropes. They can have different shapes (spherical and cylindrical), form endohedral, exohedral, SWNTs and MWNTs compounds, and demonstrate exceptional tensile strength.
Possible applications are currently being explored.
Lesson 2.1 Extendable Solids
As the size of the sample decreases the ratio of surface particles to interior particles increases in ionic and metallic solids
Poster Assessment
Students will further investigate the essential question that they have considered throughout the module: How and why do the chemical and physical properties of nanosamples differ from those of macrosamples?
Lesson 3.1 Carbon Chemistry
The molecular geometry is related to bond number and type of bond. (single, double, and triple) The requirement of four bonds and their alternate resonance structures is most significant in the formation of carbon allotropes. Different allotropes can have very different physical and chemical properties.
Lesson 2.3Extendable Structures: Melting Point, Color Conductivity
In Extendable Structures:Melting point decreases because surface energy increasesColor changes because electron orbital changes with decreased particle size.Electrical conductivity decreases because electron orbital changes with decreased particle size.
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Materials
Teacher Scripts
Teacher Resource Guide
Student Handbook-Teacher Version
PowerPoints and Multimedia
Student Handbook
Materials Kit
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Teacher Guide
– Student Learning Objectives– At a Glance For the Teacher– Estimated Time– Chemistry Concepts– Materials– Advanced Preparation
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Teacher Script(Example)
Slide #Student
Handbook Page #
Teacher Background Information and PedagogyTeacher Script
Slide 1Instructional Strategies: page 3
1) Have students complete the first column of the KWL chart for the question, What is Nanoscience before they watch the video. Then, following the video:
You have just watched a video on Nanoscience and Nanotechnology, so let’s explore this new field of science further by searching for answers to some questions about it. We have been considering what you know about nanoscience. On the basis of what you saw in NanoSize Me, how would YOU define nanoscience? {click}
2) Have students revise their notes on the first column and complete the second column after they watch the video.Follow instructions found on page Teacher Background page 3 of the Instructional Strategies section of the Teacher Handbook. Accept student answers, which may include: it is the relatively new field of science that deals with very small particles or the different properties that common chemicals have at the nanoscale level or possible future uses.Pilot students said,“small, tiny, really small, too small to see.” They only mentioned examples from the video.
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Assessments
•Formative Assessment-– Teachers Guides -scripted questions for
teacher to use– Making connections questions (between
lessons)- can be used for a graded quiz– Flow Charts
•Summative– Multiple choice test (pre and post)– Poster Assessment
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Communication
Discussion Board (Optional)
– http://ecampus.learningstreet.org/login/index.php
– Follow on-screen directions to sign up for NanoLeap Field Test
• Enrollment Key: nanoleapA (case sensitive)
– For Assistance email Lisa Maxfield• [email protected]
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Evaluation Overview
• Treatment & control groups• Purpose is to assess impact of
NanoLeap for Chemistry on:–Student understanding of core science
& nanoscale science concepts–Student engagement
• Implementation Fidelity is Key!
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Evaluation Components
• Timing of Implementation
• Implementation Fidelity
• Informed Consent
• Confidentiality
• Data Collection
• Timely Submission of Data
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Timing of Implementation
• The NanoLeap for Chemistry module is intended to be implemented as the second to last unit in a first year chemistry course.
Pre-test
NanoLeap (Chemistry Applications)
Post-Test
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Implementation Fidelity
The success of the NanoLeap module in promoting student understanding and engagement assumes that:
– certain steps are necessary to bring about specific outcomes, and
– the steps must be implemented “as planned” to have the intended effect.
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Implementation Fidelity
• Teachers are asked to implement all parts of the module and in sequence:– Follow the “script” and “notes” in teacher guide– Present all Power Point slides– View all Multimedia– Carry out all Student Activities– Cover “Making Connections” Discussion Questions– Review “Flow Chart”
• Complete “Fidelity Checklist” each day!!
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Fidelity Checklist
Each day, complete the “Fidelity Checklist” to document: – what parts were covered, – what parts were omitted and why,– modifications or accommodations, and – any supplemental materials that were
introduced.
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Informed Consent
All participants in a study must be informed about the study and consent to participation. – Parents: You must send home the informed consent
letter to inform parents about the study and allow them to request that their child not participate in the Student Survey. Keep a list of “non-consenting” parents and do not administer the survey to their child.
– Students: Even with parent consent, student participation in the student survey is encouraged, but must be voluntary. Students may opt out.
– Teachers: The letter attached to the teacher survey is your informed consent letter. By completing the survey you are giving your consent.
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Confidentiality
• Each school, teacher, and student participant will be assigned an ID number and all identifying information stripped from data files. No individually-identifiable information will be kept in the data files.
• Participant-ID number lists will be kept in locked and/or password protected files and only released to authorized research team personnel.
• No individuals -- students, teachers, or schools -- will be identified in any report.
• McREL and ASPEN Associates will adhere state and federal processes and requirements for protecting human subjects and ensuring data privacy.
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Data Collection
• Pre-printed materials • Data Collection Manual
– Instructions – Parent Consent form– Fidelity Checklist– Teacher Survey– Instructions for selecting sample Student Journals– Copy of Student Survey– Copy of pre and post assessments – Copy of pre and post assessment answer sheets– Postage paid return shipping label
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Submitting Your Data
• As soon as you complete the NanoLeap module, the post-assessment, student and teacher surveys, ship all of the required materials back to ASPEN.
• Once we log in your data to confirm that it is all there, we will be able to issue your stipend.
