ExEC: Student Preview Posted by Justin Wilcox on October 23, 2017April 24, 2020 Preview 5 of the 27 student exercises within ExEC. For complete access, contact us at ExEC@teachinge.org or visit the ExEC Website. Take This Course Preview: Entrepreneurship Attitudes 1 of 5 Preview: Business Plans vs Business Experiments 2 of 5 Preview: Business Model Breakdown 3 of 5 Preview: Problems. Not Products. 4 of 5 Preview: Decision Diary 5 of 5