Post-secondary

Generating Cognitive Dissonance in Student Interviews through Multiple Representations

Author(s): 
Linenberger, Kimberly
Bretz, Stacey Lowery
Contact Info: 
Publication Type: 
Journal
Publication Date: 
In Press

This study explores what students understand about enzyme–substrate interactions, using multiple representations of the phenomenon. In this paper we describe our use of the 3 Phase-Single Interview Technique with multiple representations to generate cognitive dissonance within students in order to uncover misconceptions of enzyme–substrate interactions. Findings from 25 student interviews are interpreted through the lens of multiple theoretical frameworks, including personal constructivism and coherence formation. The importance of classroom teachers engaging students in dialogue about representations is discussed.

A Symmetry POGIL Activity for Inorganic Chemistry

Author(s): 
Luxford, Cynthia
Crowder, Michael
Bretz, Stacey Lowery
Contact Info: 
Publication Type: 
Journal
Publication Date: 
In Press

The goal of this project was to create an inquiry activity to teach symmetry elements and symmetry operations in an inorganic chemistry course. Many students experience difficulty when building and mentally manipulating three-dimensional mental models from two-dimensional images, causing difficulty when learning symmetry. Process-oriented, guided-inquiry learning (POGIL) was used to structure the activity using a learning cycle paradigm consistent with research on how students learn as described by Novak’s human constructivism theory. The activity familiarized students with symmetry terms as students actively engaged in finding symmetry operations in a variety of molecules. The symmetry activity was classroom tested and student and POGIL expert feedback were used to improve the activity.

Synthesis and Characterization of Self-Assembled Liquid Crystals: p-Alokxybenzoic Acids

Author(s): 
Jensen, Jana
Grundy, Stephan
Bretz, Stacey Lowery
Hartley, C. Scott
Publication Type: 
Journal
Publication Date: 
In Press

Thermotropic liquid crystal phases are ordered fluids found, for some molecules, at intermediate temperatures between the crystal and liquid states. Although technologically important, these materials typically receive little attention in the undergraduate curriculum. Here, we describe a laboratory activity for introductory organic chemistry students on the synthesis and characterization of the p-alkoxybenzoic acids. These compounds, through the formation of carboxylic acid dimers, exhibit liquid crystal phases common in rod-like (calamitic) molecules. The students are assigned different alkoxy chain lengths and synthesize the compounds through microwave-assisted nucleophilic substitution. Characterization of the phase behavior is then carried out by standard melting point techniques, differential scanning calorimetry, or polarized optical microscopy. The results for the class are pooled to allow the students to consider structure–property effects for the series. This activity allows students to explore small-molecule synthesis applied to materials chemistry and concepts of self-assembly: the benzoic acids associate through hydrogen bonding, and the resulting rod-like dimers further organize into the liquid crystal phases.

Preparation and Characterization of a Monolithic Column for use in HPLC: An Undergraduate Laboratory Experiment

Author(s): 
Bindis, Michael P
Bretz, Stacey Lowery
Contact Info: 
Publication Type: 
Journal
Publication Date: 
In Press

The high-performance liquid chromatography (HPLC) experiment, most often done in the undergraduate analytical instrumentation laboratory course, generally illustrates reversed-phase chromatography using a commercial C18 silica column. To avoid the expense of periodic column replacement and introduce a choice of columns with different stationary phases, we have developed an experiment in which students prepare and test a polymer-based monolithic column. The 10 or 15 cm monolithic column is prepared using 1/8 in. o.d. × 2.3 mm i.d. poly(ether ether ketone) or PEEK tubing. The reaction is accomplished thermally at 60 °C for several hours by polymerization of butyl methacrylate cross-linked with ethylene glycol dimethacrylate in a porogen system consisting of 1,4-butanediol, 1-propanol, and water. Using toluene and naphthalene as analytes, profiles of retention factor as a function of methanol have been shown. A study of essential nutrients can be accomplished by using an ion-pairing reagent to separate thiamine from riboflavin. In addition, plate count and van Deemter plots can be done to determine column efficiency. The experiment can be designed to be completed over a 1 to 3 week period of time. Exposure to polymer chemistry, often not a part of the undergraduate laboratory curriculum, is an additional important aspect of this experiment.

A Framework for Assessing Environmental Literacy

This workshop developed a new, comprehensive, research-based framework for assessing environmental literacy. By bringing together, for the first time, experts in research, assessment, and evaluation from the fields of science education, environmental education, and related social science fields, this project accessed and built its work on the literature and the insights of many disciplines.

Award Number: 
1033934
Funding Period: 
Mon, 11/15/2010 - Wed, 10/31/2012
Project Evaluator: 
Joe Heimlich, OSU
Alternative video text
Alternative video text: 
A video of the National Press Club dissemination event is posted at www.NAAEE.net/Framework
Full Description: 
This workshop developed a new, comprehensive, research-based framework for assessing environmental literacy. By bringing together, for the first time, experts in research, assessment, and evaluation from the fields of science education, environmental education, and related social science fields, this project accessed and built its work on the literature and the insights of many disciplines. The North American Association for Environmental Education (NAAEE) worked with the leaders of the only two large-scale assessments of environmental literacy used in the U.S. to date (Programme for International Student Assessment [PISA] and the National Environmental Literacy Assessment [NELA]) to conduct the workshop. The project leaders analyzed PISA and NELA and used a multi-disciplinary search and review of the literature to prepare a draft framework. At the workshop and thereafter, a diverse array of invited experts critiqued that draft and provided suggestions for revision. Then, the leaders/organizers produced a final Environmental Literacy Framework and disseminated it both electronically and at a nationally advertised event to a wide audience of assessment specialists, funding and policy-making agencies, and organizations working to develop assessments and achieve environmental literacy. Many institutions and agencies have noted the need to create an environmentally literate population, and government and private entities are investing hundreds of millions of dollars in projects aimed at enhancing environmental literacy. Given the scope and scale of these investments and the interest in this arena on the part of federal agencies, professional organizations, and corporations, assessments for gauging our progress in transforming our preK-12 education system to achieve that end are needed. The new Framework for assessing environmental literacy provides a foundation for measuring the extent to which we are enabling all learners to acquire the knowledge, skills, dispositions, and behaviors vital for competently making decisions about local, regional, national and global issues.
A Framework for Assessing Environmental Literacy

Studying Topography, Orographic Rainfall, and Ecosystems (STORE) with Geospatial Information Technology

This project is using innovative Geospatial Information Technology-based learning in high school environmental science studies with a focus on the meteorological and ecological impacts of climate change. The resources developed are using ArcGIS Explorer Desktop and Google Earth software applications to increase students' learning and interest in science and careers and will be adaptable for teachers to improve classroom implementation.

Lead Organization(s): 
Partner Organization(s): 
Award Number: 
1019645
Funding Period: 
Wed, 09/01/2010 - Sat, 08/31/2013
Project Evaluator: 
Haynie Research and Evaluation
Full Description: 

<!--[if gte mso 9]> Normal 0 false false false MicrosoftInternetExplorer4 <![endif]--><!--[if gte mso 9]> <![endif]--><!--[if gte mso 10]> <! /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} --> <!--[endif] -->

STORE is developing and piloting classroom uses of GIS-based interactive data files displaying climatological, topographical, and biological data about an especially ecologically and topographically diverse section of mid-California and a section of western New York State, plus projected climate change outcomes in 2050 and 2099 from an IPCC climate change model. Both areas contain weather stations. The participating students and teachers live in those areas, hence the place-based focus of the project.

To help teachers make curricular decisions about how to use these data with their students, the project has, with input from six design partner teachers, produced a curriculum module exemplar consisting of six lessons. The lessons start with basic meteorological concepts about the relationship between weather systems and topography, then focus on recent climatological and land cover data. The last two lessons focus on IPCC-sanctioned climate change projections in relation to possible fates of different regional species. Technology light versions of these lessons send students directly to map layers displaying the data for scientific analysis. Technology-heavy versions address the additional goal of building students' capacities to manipulate features of geographic information systems (GIS). Hence, the technology-heavy versions require use of the ARC GIS Explorer Desktop software, whereas the technology light versions are available in both the ARC software and in Google Earth. Google Earth makes possible some student interactivity such as drawing transects and studying elevation profiles, but does not support more advanced use of geographic information system technology such as queries of data-containing shape files or customization of basemaps and data representational symbology.

Answer keys are provided for each lesson. Teachers have in addition access to geospatial data files that display some storm systems that moved over California in the winter of 2010-2001 so that students can study relationships between actual data about storm behavior and relationship to topography and the climatological data which displays those relationships in a summary manner. This provides the student the opportunity to explore differences between weather and climate.

To increase the likelihood of successful classroom implementation and impact on student learning, the professional development process provides the conditions for teachers to make good adaptability decisions for successful follow-through. Teachers can implement the six lessons or adapt them or design their own from scratch. The project requires that they choose from these options, explain on content representation forms their rationales for those decisions, and provide assessment information about student learning outcomes from their implementations. The project provides the teachers with assessment items that are aligned to each of the six lessons, plus some items that test how well the students can interpret the STORE GIS data layers.

All of this work is driven by the hypothesis that science teachers are more likely to use geospatial information technology in their classrooms when provided with the types of resources that they are provided in this project. In summary, these resources include:

1.     tutorials about how to use the two GIS applications

2.     sufficiently adaptive geospatial data available in free easily transportable software applications

3.     lessons that they can implement as is, adapt, or discard if they want to make up their own (as long as they use the data)

4.     supportive resources to build their content knowledge (such as overview documents about their states' climates and information about the characteristics of each data layer and each data set available to them).

 

The growth and evolution of the teachers' technological pedagogical content knowledge is being tracked through interviews, face-to-face group meetings, and classroom observations. Also being tracked is the extent to which the teachers and students can master the technology applications quickly and on their own without workshops, and how well teachers provide feedback to the students and assess their learning outcomes when implementing STORE lessons. As the project moves into its third and final year, we will be studying outcomes from the first classroom implementation year (i.e. year two of the project) and determining to what extent the professional development strategies need to be revised in relation to how the teachers are responding to the project resources and forms of professional support. In the end, the project will contribute to the knowledge base about what professional development strategies are appropriate for getting teachers to use these types of resources, what decisions teachers make about how to use the resources for different courses and student groups they teach, and what are the outcomes of those uses in terms of curricular material, instructional strategies, and student learning.

Studying Topography, Orographic Rainfall, and Ecosystems (STORE) with Geospatial Information Technology

ScratchEd: Working with Teachers to Develop Design-based Approaches to the Cultivation of Computational Thinking

This project is designing, developing, and studying an innovative model for professional development (PD) of teachers who use the Scratch computer programming environment to help their students learn computational thinking. The fundamental hypothesis of the project is that engagement in workshops and on-line activities of the ScratchEd professional development community will enhance teacher knowledge about computational thinking, their practice of design-based instruction, and their students' learning of key computational thinking concepts and habits of mind.

Project Email: 
scratched@media.mit.edu
Partner Organization(s): 
Award Number: 
1019396
Funding Period: 
Sun, 08/15/2010 - Wed, 07/31/2013
Project Evaluator: 
Education Development Center
Full Description: 

The ScratchEd project, led by faculty at the Massachusetts Institute of Technology and professionals at the Education Development Center, is designing, developing, and studying an innovative model for professional development (PD) of teachers who use the Scratch computer programming environment to help their students learn computational thinking. The fundamental hypothesis of the project is that engagement in workshops and on-line activities of the ScratchEd professional development community will enhance teacher knowledge about computational thinking, their practice of design-based instruction, and their students' learning of key computational thinking concepts and habits of mind.

The effectiveness of the ScratchEd project is being evaluated by research addressing four specific questions: (1) What are the levels of teacher participation in the various ScratchEd PD offerings and what do teachers think of these experiences? (2) Do teachers who participate in ScratchEd PD activities change their use of Scratch in classroom instruction to create design-based learning opportunities? (3) Do the students of teachers who participate in the ScratchEd PD activities show evidence of developing an understanding of computational thinking concepts and processes? (4) When the research instruments developed for the evaluation are made available for teachers in the Scratch community to use for self-evaluation, how do teachers make use of them? Because both computational thinking and design-based instruction are complex activities, the project research is using a combination of survey, interview, and artifact analysis methods to answer the questions.

The ScratchEd professional development and research work will provide important insight into the challenge of helping teachers create productive learning environments for development of computational thinking. Those efforts will also yield a set of evaluation tools that can be integrated into the ScratchEd resources and used by others to study development of computational thinking and design-based instruction.

Events

  • 2012 Conference - http://events.scratch.mit.edu/conference/
  • Regular Workshops, Webinars, and Meetups - http://scratched.eventbrite.com/
  • Social Media

  • Twitter - http://twitter.com/ScratchEdTeam
  • Facebook - http://www.facebook.com/ScratchEdTeam
  • Vimeo - http://vimeo.com/scratchedteam/
  • Flickr - http://www.flickr.com/photos/38090850@N08/
  • ScratchEd: Working with Teachers to Develop Design-based Approaches to the Cultivation of Computational Thinking

    Chemistry Education Research Doctoral Scholars Program (Bretz, Lewis, Mayberry)

    Presenter(s): 
    Stacey Lowery Bretz
    Jennifer Lewis
    Maralee Mayberry
    Year: 
    2009

    The Chemistry Education Research Doctoral Scholars Program aims to recruit, train and graduate a diverse group of scholars in chemistry education research (CER) who specialize in assessment; design coursework, K-12 partnerships, research experiences, and mentoring to successfully prepare these scholars for careers in CER; and create a community of scholars to collaborate and systematically improve assessment of student learning.

    Plenary Presentation: The Opportunity Equation: Transforming Mathematics and Science Education for Citizenship and the Global Economy (Cahill)

    Presenter(s): 
    Michele Cahill
    Year: 
    2009

    Plenary Presentation: The Opportunity Equation: Transforming Mathematics
    and Science Education for Citizenship and the Global Economy

    Speaker: Michele Cahill, Vice President, National Programs, and Program Director, Urban
    Education, Carnegie Corporation of New York

    Cahill discusses the Carnegie-Institute for Advanced Study Commission on Mathematics and
    Science Education’s recent report in which they challenge the nation to mobilize for coordinated
    action so that all students—not just a select few, or those fortunate enough to attend certain
    schools—achieve much higher levels of math and science learning.

    Concept Inventories and Chemistry Misconceptions: Chemistry Education Research Doctoral Scholars Program

    In response to the critical need for scholars with deep content knowledge in chemistry and the specialized training to conduct CER, this capacity building project prepares scholars whose research marries expertise in instrument design with extensive literature on chemistry misconceptions, resulting in the development of concept inventories as reliable and valid measures of student learning for use by chemistry teachers (both high school and post-secondary) and chemistry education researchers.

    Lead Organization(s): 
    Award Number: 
    0733642
    Funding Period: 
    Sat, 09/01/2007 - Wed, 08/31/2011
    Project Evaluator: 
    Dr. Jennifer Lewis, University of South Florida; Dr. Maralee Mayberry, University of South Florida
    Concept Inventories and Chemistry Misconceptions: Chemistry Education Research Doctoral Scholars Program
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