Presentations

       "Thoughts on Teaching Organic Chemistry," 22nd Biennial Conference on Chemical Education, The Pennsylvania State University, State College, Pennsylvania, August 1, 2012.

       "Woodward-Fieser UV Rules on Excel Spreadsheets," 42nd Middle Atlantic Regional Meeting of the American Chemical Society, University of Maryland, College Park, Maryland, May 21, 2011.

       "Use of Ozonolysis Problems to Engage Students," 21st Biennial Conference on Chemical Education, North Texas University, Denton, Texas, August 3, 2010.

       "On the Stoichiometry Inherent in the Isotope Patterns of Compounds Containing Br, Cl, and S," 21st Biennial Conference on Chemical Education, North Texas University, Denton, Texas, August 1, 2010.

       "Use of Bond Analysis in the Solution of Ozonolysis Problems," 238th National Meeting of the American Chemical Society, Washington, DC, August 20, 2009.

        "The Chlorine Rule of Mass Spectrometry," STEM Seminar, Prince George's Community College, April 22, 2009. Sponsored by the STEM Collegian Center.

        "Critical Thinking for Organic Students: Using Anathons to Develop and Solve Structural Problems" 183rd Conference of the Two-Year College Chemistry Consortium, Anne Arundel Community College, Arnold, Maryland, November 22, 2008.

        "Use of Bond Equations in Solving Problems," 236th National Meeting of the American Chemical Society, Philadelphia, August 21, 2008.

       "Solving Qualitative Organic Problems with the Aid of an Automated Isotope-Pattern Analyzer," 20th Biennial Conference on Chemical Education, Indiana University, Bloomington, Indiana, July 27, 2008.

        "Anathons in Developing and Solving Ozonolysis Problems," 40th Middle Atlantic Regional Meeting of the American Chemical Society, Queensborough Community College, Bayside, New York, May 18, 2008.

        "Total Bonds Equations for General and Organic Chemistry," STEM Seminar, Prince George's Community College, April 8, 2008. Sponsored by the STEM Collegian Center.

        "How to Use the Geometry Predictor," STEM Seminar, Prince George's Community College, October 12, 2007. Sponsored by the STEM Collegian Center.

        "Geometry Prediction Using Microsoft Excel," The 234th National Meeting of the American Chemical Society, Boston, August 22, 2007. Presented with the aid of a Pathfinder Grant from Prince George's Community College.

        "Qualitative Organic Analysis: An A + 2 Isotope Pattern Analyzer" 39th Middle Atlantic Regional Meeting of the American Chemical Society, Ursinus College, Collegeville, Pennsylvania, May 17, 2007.

        "Predicting the Geometry of Chemical Species," STEM Seminar, Prince George's Community College, April 18, 2007.

        "Developing Critical Thinking Problems for Organic Chemistry," 17th Annual Meeting of the Association of Faculties for the Advancement of Community College Teaching, Harford Community College, Bel Air, Maryland, January 10, 2007.

        "The Chlorine Rule with an Introduction to the Isotope-Pattern Analyzer," STEM Seminar, Prince George's Community College, November 16, 2006.

       "The Chlorine Rule: Teaching Students How to Determine the Number of Chlorine and Bromine Atoms in the Formula of an Organic Polyhalide by Analysis of the Molecular-Ion Region of Its Mass Spectrum." 19th Biennial Conference on Chemical Education, Purdue University, West Lafayette, Indiana, July 31, 2006.

      "Analysis of the Isotope Patterns of Organic Sulfur-Containing Compounds," 38th Middle Atlantic Regional Meeting of the American Chemical Society, Hershey, Pennsylvania, June 5, 2006.        

       "The Chlorine Rule," Invited lecture, Towson University Chemistry Department Seminar, Towson University, Towson, Maryland, October 25, 2005

        "Forensic Chemistry at a Community College," Invited lecture, Symposium on Forensic Chemistry Education, 37th Middle Atlantic Regional Meeting of the American Chemical Society, Rutgers University, New Brunswick, New Jersey, May 25, 2005

      "First-Year Organic Problems that Promote Student Reasoning," 37th Middle Atlantic Regional Meeting of the American Chemical Society, Rutgers University, New Brunswick, New Jersey, May 24, 2005

        "Unique and Non-unique Molecular Populations in Compounds Containing Multiple Bromine and Chlorine Atoms," The 228th National Meeting of the American Chemical Society, Philadelphia, August 26, 2004. This material is based upon work supported by the National Science Foundation under Grant No. DUE-0202431. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

      "A New Forensic Chemistry Course," 18th Biennial Conference on Chemical Education, Iowa State University, Ames, Iowa, July 19, 2004. This material is based upon work supported by the National Science Foundation under Grant No. DUE-0202431. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

       "Organic Chemistry II Online," Poster Presentation, 14th Annual Meeting of the Association of Faculties for the Advancement of Community College Teaching, College of Southern Maryland, La Plata, Maryland, January 8 and 9, 2004.

      "Factoring Isotope Patterns I," (Compounds Containing Bromine, Chlorine and Nitrogen), The 226th National Meeting of the American Chemical Society, New York City, September 11, 2003. This material is based upon work supported by the National Science Foundation under Grant No. DUE-0202431. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.

      "Factoring Isotope Patterns II" (Compounds Containing Bromine, Chlorine and the other A + 2 Elements, Oxygen, Sulfur and Silicon), The 226th National Meeting of the American Chemical Society, New York City, September 11, 2003. This material is based upon work supported by the National Science Foundation under Grant No. DUE-0202431. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.

      "A Mass Spectral Chlorine Rule for Sophomore Organic Chemistry," Poster Presentation, the 39th IUPAC Congress and 86th Conference of the Canadian Society for Chemistry, Ottawa, Canada, August 14, 2003. This material is based upon work supported by the National Science Foundation under Grant No. DUE-0202431. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation. Presented with the aid of a Pathfinder Grant from Prince George's Community College.

      "A Methodology for the Simultaneous Assessment of Cognitive and Content Domains," ChemEd 2003, Auburn University, Auburn, Alabama, July 28, 2003.

      A Guided Inquiry to a Chlorine Rule for Use in the Mass Spectral Analysis of Compounds Encountered in First-Year Organic Chemistry, 36th Middle Atlantic Regional Meeting of the American Chemical Society, Princeton University, Princeton, New Jersey, June 10, 2003. This material is based upon work supported by the National Science Foundation under Grant No. DUE-0202431. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of the National Science Foundation.

      Organic Chemistry II Online, 35th Middle Atlantic Regional Meeting of the American Chemical Society, George Mason University, Fairfax, Virginia, May 29, 2002.

      A Four-Variable Approach to Hydrocarbons, 34th Middle Atlantic Regional Meeting of the American Chemical Society, Towson University, Towson, Maryland, May 31, 2001.