Detra Haynes, a teacher from Camden, N.J’s Woodrow Wilson High School, shows Charles Carroll High School teacher Michael Gardnera and other classmates how she’d market a calculator as part of an exercise on negotiation and marketing during the Philadelphia chapter of the National Foundation for Teaching Entrepreneurship’s NFTE University seminar.

The week-long seminar, which was held in Temple University’s Entertainment and Education Center from July 14-17, gave middle and high school teachers the tools they’ll need to help their students discover the world of entrepreneurship. Among the things the teachers were shown were ways to help students create a business plan, determine what to charge for a good or service and how to negotiate successfully.

NFTE was founded in 1988 as a means to help middle and high schools teach business schools to children in disadvantaged areas in hopes of helping increase their interest in entrepreneurship, and by extension become better students in math, English and other skills, said Sylvia Watts-McKinney, executive director of NFTE Philadelphia.

The foundation has trained more than 1,300 teachers and youth professionals in 22 states and 12 countries.