(Leadership)

Ph.D., Organizational Behavior, Purdue University, 2004
M.B.A., Wake Forest University, 1999
B.A., American Government, University of Virginia, 1989

Prof. Ballinger's current teaching interests are in leadership development amongst emerging leaders in organizations. His research interests cover individual’s relationships with their supervisors and leaders at work, and how their reactions to leadership changes impact their future relationships.

Before starting his teaching career, Prof. Ballinger was employed by Aspen Systems Corporation. His consulting activities have included projects with Alcoa, FirstPic Inc., U.S. Department of Housing and Urban Development and Wake Forest University.

(Operations Management)

Ph.D., Industrial Administration, Carnegie Mellon University, 1979
M.S., Industrial Engineering, University of Texas (Arlington), 1976
B. Tech., Mechanical Engineering, Indian Institute of Technology, 1972

Prof. Chand teaches operations management. His research interests cover dynamic inventory problems, machine replacement, newsvendor problem with multiple orders, process analysis and improvement, and effect of variability on process performance.

Prof. Chand has been with Krannert since 1979. He is an Associate Editor for "Management Science". He has also served on editorial boards of "Manufacturing and Service Operations Management", "Production and Operations Management", and "Information Systems and Operations Research". He has published in leading journals such as "Operations Research", "IIE Transactions", "Management Science" and "Naval Research Logistics". He was general chair for POM 2005 conference held in Chicago. He has worked on projects with many companies, including CAT, VW, Continental Tires, German Railways, and a medical clinic in Indianapolis.

(Innovative Corporate Management, Risk Management, Knowledge Management)

Ph.D., Leibniz Universität Hannover, 1989

Prof. Dr. Utz Claassen strongly advocates the academic education of managers. In addition to his current business as well as academic activities and commitments, he teaches “Innovative Corporate Management”, “Risk Management” and “Knowledge Management”.

In the past, Prof. Claassen has worked for Volkswagen, Seat, Sartorious and EnBW. At the moment, he is the Principal Senior Advisor for the New York based private investment firm Cerberus. In addition, he is the chairman of the Innovation Strategies and Knowledge Management Initiative of the Federation of German Industries, honorary professor at the Leibniz Universität Hannover, member of the “Forschungsunion Wirtschaft-Wissenschaft” with Germanys Federal Research Minister Annette Schavan as well as member of the foundation board of the Georg-August-Universität Göttingen.

(Accounting)

Ph.D., Accounting, Purdue University, 1973
M.S., Industrial Administration, Purdue University, 1968
B.S., Metallurgical Engineering, Purdue University, 1963

At GISMA Business School and at Krannert School of Management, Prof. Eskew teaches financial and managerial accounting. He has served as a visiting faculty member at Stanford University, as an assistant Professor at the University of Iowa, and as the Academic Fellow in the Office of the Chief Accountant, Securities and Exchange Commission. Before coming to Purdue in 1976, he was employed at Western Electric Co. and at Xerox Corp., and he was also an officer in the U.S. Army Chemical Corps.

(Financial Management)

Ph.D., Finance, Stanford University
M.S., Finance, University of Minnesota
B.S., Industrial Engineering, Iowa State University

Prof. Ewert has, among others, taught at Purdue University, the International School of Management (Paris), Georgia State University and the University of California, Berkeley. At Georgia State University he was given an Outstanding Faculty Award for his teaching.

Prof. Ewert has presented Financial Management seminars in Asia, Africa, Europe, the Middle East, and North and South America. He has testified as a financial expert witness before a subcommittee of the US Senate, the Federal Energy Regulatory Commission, and various state and federal courts and regulatory agencies. As co-author Prof. Ewert wrote “Obtaining Unsecured Loans” for the Treasurer’s Handbook by Dow Jones-Irwin.

(Law)

S.J.D., Indiana University School of Law-Bloomington, Bloomington, Indiana
LL.M., Indiana University School of Law-Bloomington, Bloomington, Indiana
J.D., Gonzaga University School of Law, Spokane, Washington
M.B.A., Eastern Washington University, Cheney, Washington
B.A., Business Administration, Eastern Washington University

Prof. Dr. Fisher area of expertise is business law. After teaching at, among others, the University of San Francisco, California State University and the Hanover College, he joined the Krannert School of Management as Clinical Associate Professor of Management in 2005 and has been named Academic Director of Undergraduate Programs at the school in 2008. Prof. Dr. Fisher has also worked as risk manager with the City of Fresno and as assistant city attorney with the City of Bellingham.

Prof. Dr. Fisher has received the Outstanding Undergraduate Teacher Award at Krannert in 2008, the Mortar Board Award for Outstanding Professor in 1997, the Baynham Award for Outstanding Teacher in 1996, as well as the National University Outstanding Faculty Teaching Award in 1990. Prof. Dr. Fisher is also a nominated finalist for the Murphy Outstanding Undergraduate Teaching Award.

(Organizational Behavior)

Ph.D., Psychology, University of Washington, 1976
M.B.A., Management, University of Texas (Austin), 1968
B.S.B.A., Management, Oklahoma State University, 1967

Prof. Green has been a faculty member at the University of Cincinnati (1976-87) and at Purdue University since 1987. His current research interests are leadership, work and family interfaces, and the management of technological innovation.

He has taught organizational behavior, leadership, managing technological innovation, teams, and research methods, receiving teaching awards at both universities.

Prof. Green is a member of the Academy of Management and the IEEE Engineering Management Society. He has served as the Director of the Professional Masters Programs at the Krannert School (1995-98) and on Purdue University’s Graduate Council. He also has served as Area Coordinator, Policy Committee Chairman, and Ph.D. Program Coordinator for the OBHR faculty.

(Financial Management)

Ph.D. Finance, Purdue University, 2001
M.S. Economics, Purdue University, 1997
M. B. A. Finance, Mississippi State University, 1994
B.S. Electrical and Electronic Engineering, Middle East Technical University, Turkey, 1992

Professor Gulen's current research interests can be classified into three major areas: time series and cross-sectional tests of stock market predictability, issues and problems in the mutual fund industry, and the value of derivative securities in the marketplace.

His research on time series tests of predictability focuses on understanding whether the documented predictability levels in the academia is genuine. On the cross-sectional predictability front, he studies the impact of firm-level asset investment on returns by examining the cross-sectional relation between firm asset growth and subsequent stock returns. His work on mutual funds focuses on understanding fund-flow patterns around conditional name changes in the mutual fund industry and the relationship between fund size and fund performance. His research on derivative securities focuses on understanding the role of derivative securities in the price discovery process and the volatility of the underlying assets.

(Strategic Management)

Ph.D., Competitive Strategy, University of Michigan, 1990

Prof. Hariharan specializes in competitive strategy and strategic management. Much of his work deals with growing new businesses as a start-up or as part of an established company and entry into new country markets.

Prof. Hariharan’s teaching received several awards: Golden Apple Teaching Award at USC, and Distinguished Teacher at Krannert. While at USC’s Marshall School, he was recognized in the Business Week annual survey of business schools as among the best Professors of Strategy.

In 1999 he co-founded NextStrat. He served there as Chief Knowledge Officer, developing Enterprise Strategy Management Software (ESM). Prof. Hariharan has also been active in Executive Education and as a consultant. His long list of clients includes Mattel, Armstrong Industries, Toyota Motor, IBM and Xerox.

(Operations Management)

Ph.D., Industrial Administration, University of Hamburg, 1997
M.B.A, Business and Economics, University of Hamburg, 1992

Prof. Höck teaches operations management. His research interests cover service management, in particular process analysis and improvement, and effect of variability on process performance as well as production planning and control of modern manufacturing operations.

Prof. Höck has been Visiting Professor at Krannert in 2000, 2002 and 2005/2006, where he taught courses in Operations Management and Supply Chain Management, elective MBA courses on Operations Consulting as well as Executive seminars.

Prof. Höck’s most recent books include “Service Management”, “eBusiness Customer Service” and “Production Planning and Control of Flexible Manufacturing Systems“. Dr. Höck has worked on projects with many companies, including VW, DaimlerChrysler, Beiersdorf, and the Indiana Department of Transportation.

(Organizational Behavior)

Ph.D., Political Sciences University of Florida

Norbert Homma is currently Managing Director and Partner of business performance consulting GmbH (bpc), Heidelberg (Germany), an organization he founded in 1997. He is also President and co-founder of bpcUSA LLC, bpc's North American affiliate. As a management consultant, he specializes in the management of organizational change and the advancement of individual and organizational learning. Dr. Homma has consulted for numerous international companies in Europe, Southeast Asia, and North America.

He studied in Germany, UK and in the US, where he received a Ph.D. in political sciences. He was awarded a Fullbright Fellowship and a Graduate Fellowship for his studies at the University of Florida. At GISMA, Dr. Homma teaches Cross-Cultural Management.

(Quantitative Methods)

Ph.D., Operations Management, University of Iowa, 1995
M.B.A., Management Science, University of Iowa, 1991
B.S., Microbiology, University of Iowa, 1986

Prof. Johanns' teaching interests include quantitative analysis, management science, operations management, and business forecasting. His research interests include supply chain management in the livestock industry.

(Organizational Behavior & Human Resource Management)

Ph.D., Technische Universität Berlin

Professor Kearney has taught a wide range of different courses in organizational behavior, human resource management, and psychology at numerous German universities such as the three main universities in Berlin (Freie Universität, Technische Universität, Humboldt Universität) as well as Jacobs University Bremen, Justus Liebig University Giessen, and Ruhr-Universität Bochum.

In his research, he examines how teamwork and leadership contribute to organizational effectiveness. Professor Kearney’s work can be found in leading OB/HRM outlets such as the Academy of Management Journal, the Journal of Applied Psychology, Organization Science, and Organizational Research Methods.

(International Marketing)

Ph.D., Business Adminsitration, Universidad Nacional de Cordoba, Argentina, 2002
M.B.A., Purdue University / GISMA Business School, 2001
B.Sc., Business Aministration, Universidad Nacional de Cordoba, Argentina, 1997

Prof. Kfuri teaches in graduate and executive programs at universities in Argentina, Austria, France, Germany, Mexico and the US. His main interests are strategy, marketing, international business and entrepreneurship. He is an academic member of the Marketing Science Institute, the Academy of Marketing Science, the Decision Sciences Institute and the Review Board of Business Management.

Prof. Kfuri works as a consultant and trainer for the private as well as the public sector. Among others, he has worked with the Argentinean, Canadian and Mexican Government, Audi, BNP Paribas, Cadbury Schweppes, Ernst & Young, KPMG, Nestlé, Phillip Morris and Volkswagen.

(Behavior in Organizations)

Ph. D., Organizational Behavior and Human Resource Management, Purdue University, 2007
B. S., Marketing, Southern Nazarene University, 2000

Prof. Lehman’s teaching interests are organizational behavior, human resource management as well as groups and teams. His current research includes decision making, risk-taking and rule violations.

Prof. Lehman has been teaching at the Krannert School of Management since 2004, where he has won the Award for Outstanding Teaching (2007) and the Award for Distinguished Teaching (2006, 2003). He also won the Krannert Dean’s Office Service Award in 2006 for service contributions to the business school. Prior to joining the Krannert faculty, Prof. Lehman has worked as a Pharmaceutical Sales Representative and Senior Account Executive.

(Financial Management)

Ph.D., Management, Massachusetts Institute of Technology, 1967
M.S., Management, Massachusetts Institute of Technology, 1961
B.S., Aeronautical Engineering, Pennsylvania State University, 1959

Professor Lewellen joined the Krannert faculty in 1964. His areas of teaching and research are corporate and international finance. He has been the director of the School's Executive Education Programs since 1985, and Herman C. Krannert Distinguished Professor of Management since 1988.

He has held visiting appointments at the Harvard Business School, the Sloan School of Management at MIT, and at the Fuqua School of Business at Duke University. He has had extensive consulting experience in the areas of business valuation, executive compensation, commercial banking, and public utility rate regulation with such firms and organizations as Bank of America, AT&T, General Electric, Ameritech Indiana, GTE, Sun Trust Banks, American Water Works Company, IPALCO Industries, the U.S. Treasury Department, Johnson & Johnson, Northern Indiana Public Service Company, and the Federal Reserve Board.

Professor Lewellen has served or is serving on the editorial boards of various financial sector journals. He has received the Salgo-Noren Award as the Outstanding Teacher in Graduate Professional Programs at the Krannert School on four different occasions. Professor Lewellen was awarded an honorary Doctorate in Economics from the Budapest University of Economic Sciences in 1996.

(Management with Information Systems)

Ph.D., University of Waterloo, Canada
M.A.Sc.
B.A.Sc.

Prof. Meisters interests focus on the role of technology in enhancing organizational effectiveness, specifically as it concerns innovation processes. Through research and consulting opportunities, Prof. Meister has worked with Accenture, Bank of Montreal, Industry Canada, Intel, Nortel, and Siemens. His work has appeared in”Management Science”, “MIS Quarterly” and other leading journals and conferences.

He is the immediate past-Chair of the Special Interest Group on the Adoption and Diffusion of Information Technology within the Association for Information Systems.

Prof. Meister teaches at GISMA and at the Richard Ivey School of Business at the University of Western Ontario. He has also taught at Queen's University and Carleton University, where he was one of the architects of an Information Systems concentration in the Bachelor of Commerce program. At the Richard Ivey School of Business he has taught Leveraging Information Technology within the Developing Leadership Competencies module in the MBA and Innovating with Technology in the Hong Kong EMBA.

(Economics)

Ph.D., University of Cranfield
M.A., Economy
B.Sc., Economy

Professor Nellis is currently a Visiting Professor at GISMA Business School and the Krannert School of Management. He is a member of The Association of MBA’s International Accreditation Advisory Board. In 2000, he received an “Outstanding Professor” award in Hungary for his contribution to curriculum development. He is recipient of the “2005 Distinguished Graduate Award” from the University of Ulster.

Prof. Nellis has published 18 books and over 200 business and practitioner journal articles. His research encompasses analysis of trends and future developments in the changing world in terms of the role of government and the impact of technology, consumer behavior, political uncertainty, societal and demographic movements.

Prof. Nellis is a frequent contributor to a wide range of international conferences and is a consultant to a number of UK and international companies in the areas of strategy and business environmental analysis, strategy formulation and management development. His current clients include Fujitsu, EDS, BT, HBoS and Allied Irish Bank. He has also acted as a consultant to several government departments and public sector organizations.

(Marketing Management)

Ph.D., Marketing, Northwestern University, 2002
M.S.M., Purdue University, 1995
B.S., Psychology, University of Illinois at Urbana

Professor Oakley's primary research interests lie in the areas of marketing strategy and branding, and their impact on consumer behavior. He has also conducted research on customer satisfaction, manager and organizational decision making, and the influence of organizational characteristics on organizations' marketing activities.

The results of Professor Oakley's research have been published in a variety of outlets, including the "Journal of Consumer Research", the "Journal of Consumer Psychology", the "Journal of Applied Psychology", the "Journal of Service Research", and the 2nd volume of "Review of Marketing Research".

(Information Technology)

Ph.D., Computer and Information Systems, 2000 University of Michigan Business School
MBA, Information Systems / Finance, 1990 Indian Institute of Management
B.S., Electronics and Communication Engineering, 1987 Indian Institute of Technology

Professor Pathak has teaching interests in Information Retrieval, Telecommunication and Management, as well as Database Systems. His current research interests involve information retrieval, adaptive algorithms, artificial intelligence, web mining, electronic commerce, and knowledge management.

Professor Pathak is currently an Associate Professor at the University of Florida and has also taught at Purdue University. He has published a number of refereed (journal) articles, most recently in the International Journal of Electronic Commerce and the Journal of Operations Management.

(Financial Management)

Ph.D., Finance, University of Washington, 1972
M.B.A., Finance, University of Michigan, 1967
B.A., Economics, Stanford University, 1966

Prof. Racette’s teaching interests include financial management at all levels, investments, international finance and competitive analysis. He has taught in Japan, Thailand, Spain and Germany.

Prof. Racette has earned teaching awards in the undergraduate, MBA and Executive programs at the University of Oregon. He has published in major academic journals and co-authored a book on financial management.

(Strategic Management)

Prof. Reuer is the Blake Family Endowed Chair in Strategic Management and Governance at the Krannert School of Management at Purdue University. Before joining Purdue, he has taught at Harvard Business School, Duke University, the Kenan-Flagler Business School at the University of North Carolina, at INSEAD and Ohio State University. Prof. Reuer has led courses and seminars on business and corporate strategy, strategic investment decisions, and strategic alliances in MBA and Ph.D. programs as well as for organizations such as Eli Lilly, Ernst and Young, Euroforum, KLM Royal Dutch Airlines, LG, NEC, Owens Corning, Pfizer, Philips International BV, and the World Bank.

Prof. Reuer is a recipient of the Excellence in Teaching Award from the Fuqua School of Business, Duke University, for the best core course in the weekend executive MBA program. Professor Reuer’s research is in the area of corporate strategy, and his current work uses information economics and options theory to examine firms’ external corporate development activities. Prof. Reuer serves on the boards of the Academy of Management Review, Academy of Management Journal, Strategic Organization, Journal of Management, and Journal of Management Studies and others. He is a recipient of the Outstanding Editorial Board Member Award from the Strategic Management Journal and the Best Reviewer Award from the Journal of International Business Studies.

(Information Technology)

Ph.D., Engineering, Hannover University, 1988

In addition to teaching at GISMA Business School Prof. Dr. Hans-Jürgen Scheruhn, has taught at the Harz University in Sachsen-Anhalt, Germany, Department of Business Administration, since 1994. Prof. Scheruhn teaches E-Process Management with Enterprise Resource Planning Systems (ERP) and related subjects.

Before teaching, Prof. Dr. Scheruhn worked as a system analyst, product manager and later as head of the product marketing department at Siemens in Hannover. He develops E-Process Management courses for Siemens currently.

Prof. Dr. Scheruhn's research focuses on model-based implementation of business information systems and workflow management. He has published about 30 articles and two books, one of them in cooperation with KPMG Consulting.

(Operations Management)

Habilitation, Venia legendi for Business Economics, University of Karlsruhe, 2008
Ph.D., Operations Research, University of Karlsruhe, 2002
Diploma, IndustrialEngineering, University of Karlsruhe, 1998
MBA, University of Massachusetts at Boston, 1996

Prof. Schön’s teaching experience covers a broad variety of courses in manufacturing and service operations management, supply chain management and logistics, revenue management, and operations research. Before joining GISMA Business School in 2009, she regularly taught at the University of Karlsruhe and was a guest lecturer at the Business School and at the Center for Doctoral Studies in Business of the University of Mannheim, as well as at the Hector School of Engineering and Management in Karlsruhe.

Prof. Schön’s research interests focus on service operations management, revenue management, product design and pricing, sustainable SCM, and, in general, the application of operations research methods to practice problems. She has published a number of refereed articles in the top OR journals and frequently contributes to a wide range of international conferences all over the world. During her habilitation, she was awarded with several postdoc research fellowships and received the Rudolf Henn Prize of Operations Research 2006. Prof. Schön has worked on projects with many companies for providing decision support – including Deutsche Telekom, Lufthansa, AIDA, SAP, webtelligence, b.telligent, etc.

(Organizational Behavior)

Ph.D., Industrial Administration, Carnegie Mellon University, 1983
M.S., Organizational Behavior, Carnegie Mellon University, 1978
B.A., Psychology, Butler University, 1976

Dr. David Schoorman is a Professor of Organizational Behavior and Human Resource Management at GISMA Business School and at the Krannert Graduate School of Management. In addition he has been Dean of GISMA Business School since January 2006. His current research interests include trust and stewardship in organizations, decision making, leadership, and motivation.

Through GISMA and Krannert Executive Education programs Prof. Schoorman has been involved in tailored education programs for many companies and professional organizations that include Volkswagen and Sennheiser electronic. He has also served as a consultant for several companies.

(Economics)

Ph.D., Humboldt-Universität Berlin, 2000
M.A., Economics, Humboldt-Universität, Berlin, 1996
B.A., Business and Economics, Freie Universität Berlin, 1993

Prof. Siebert teaches at GISMA Business School since 2005. In January 2004, he joined the Krannert School of Management as a Professor. He is working in the area of industrial organization, econometrics and microeconomics. His work is grounded in the interface between applied theory and empirical testing, i.e. structural modeling. The investigation of the competitiveness of firms with respect to dynamic strategic behavior forms the center of his work.

Prof. Siebert worked in the areas of mergers, joint ventures, multi-product competition and product differentiation, innovation, patenting and licensing, as well as firms’ dynamics. Prior to joining the Krannert faculty, Prof. Siebert was at Harvard University, at WZB (Berlin, Germany), Humboldt-University (Berlin, Germany) and Yale University

(Financial Management)

Ph.D., Management, Purdue University, 1978
M.S., Management, Purdue University, 1975
B.S., Home Economics, University of Kentucky, 1971

Prof. Sullivan joined the Krannert faculty in 1978. Her main teaching interests are corporate financial management, financial institutions and markets, and financial and managerial accounting.

She was honored in 1993-94 and 1987-88 with the Outstanding Undergraduate Teacher Award, and in fall 1993 she received the Most Effective Master's Program Teacher Award, all from within the Krannert School. In 1988-89 she received the Purdue University Outstanding Undergraduate Teaching Award. She is a two-time winner of the Salgo-Noren Award and received a Teaching for Tomorrow Award from Purdue.

Prof. Sullivan has taught in numerous programs offered through the Krannert Executive Education Programs and by the Center for Agri-Business. Her current research interests are personal bankruptcy, the evolution of cost management systems in manufacturing firms, and capital budgeting processes. Prof. Sullivan serves on the board of directors of the Federal Reserve Bank of Chicago.

(Quantitative Methods)

Ph.D., Mathematical Statistics, Bowling Green State University, 1981
B.S., Applied Mathematics, Soochow University (Taipei), 1973

Prof. Tang’s teaching interests are statistics and quantitative methods. His current research includes the areas of applied statistics and quality control. Prof. Tang also has considerable expertise in the distribution theory of statistical multivariate analysis.

Prior to joining the Krannert faculty in 1991, Prof. Tang was a member of the Bell Communications Research technical staff (1984-1991) and an assistant professor at Marquette University (1981-1984). He has also consulted for the Bell Communications Research. He is a member of the Operations Research Society of America and the Institute of Mathematical Statistics.

(Organizational Behavior)

A.B., Drury College
M.B.A., Pepperdine University
D.B.A., Indiana University

Prof. Taylor has researched extensively in strategy, decision-making, and other behavior topics. He has served as consultant to a number of organizations, including General Motors, Lockheed Martin, The United States Air Force, Wal Mart, and other private, government, and nonprofit organizations.

Prof. Taylor's publications appear in a number of journals including “Decision Sciences”, “Employee Responsibilities and “Rights Journal”, “Group & Organization Studies”, “Journal of Management”, “Journal of Organizational Behavior Management”, and “Organizational Behavior & Human Decision Processes”.

Prof. Taylor recently stepped down as the founding Director of the Murphy Enterprise Center. He is currently writing a new book based on his leadership experiences in academia.

Prof. Taylor is a former US Marine Corps Officer and Fighter Pilot.

(Accounting)

Ph.D., Economics, Stanford University, 1984
M.A., Economics, Stanford University, 1977
B.A., Mathematics, Grinnell College, 1968

At GISMA Business School and at Krannert School of Management Prof. Thoman teaches courses in both managerial and financial accounting. Her current research focuses on auditing issues, the source of the demand for auditing, how the legal system disciplines auditors, how accounting standards are chosen, and agency problems - what makes hierarchies advantageous and how the agency contract is affected when firms must compete for managers. Prof. Thoman's prior professional work experience was as an economics instructor at Santa Clara University (1981-83) and Scripps College (1983-84).

(Strategic Management)

Ph.D., 2006
M.A., International Economics, University of Paderborn, 2002

Dr. van der Velden studied both economics (M.A. International Economics) and business administration (Dipl-Kfm.) at the Universities of Paderborn, Nijmegen, Groningen and Zurich. At GISMA Business School he mainly teaches Strategic Management. His current research focuses on strategy (in regulated markets) and industrial organization. Dr. van der Velden works as a freelance consultant and has consulted several companies, agencies, and ministries. He has received numerous awards for research and teaching. Recently, he was awarded the Alcatel SEL Price for his work on strategy and regulation in the German broadband internet access market.

(Operations Management)

Ph.D., Operations Research, Carnegie Mellon University, 1980
M.S., Urban and Regional Planning, University of Illinois, 1973
B.S., Urban Systems, Massachusetts Institute of Technology, 1971

Prof. Ward's primary teaching interests are logistics and capacity planning systems. His current research interests include inventory-distribution system design, location models, and interactive computing.

Prof. Ward does occasional consulting with Indiana-based manufacturing firms. He is a member of the Operations Research Society of America (ORSA) and the president of the Wabash Valley APICS Chapter, where he also teaches a certification review course.