According to this Innovation Showcase item from the League for Innovation, Project Lead the Way is one of the most successful secondary-level STEM programs:

Project Lead The Way (PLTW), is being supported by a growing number of community colleges as a robust and well-proven curriculum that integrates effectively with their own paths of study. Through increased cooperation with PLTW high schools and engineering universities, a number of community colleges have expanded their own STEM offerings to provide students the comprehensive education they need for technology-oriented careers ... .

Project Lead The Way was conceived in the early 1990s as a way to reverse the decline in students choosing engineering and technology-oriented careers. PLTW courses emphasize applied learning and help prepare students for life in the 21st century, whether or not they choose to work in technical fields. This hands-on approach gives students the opportunity to apply math and science concepts to a variety of real-world problems that are challenging and fun.

The report, Learning Accountability from Bologna: a Higher Education Policy Primer, examines the reconstruction of those 46 European higher education systems—known as the “Bologna Process”—in terms of addressing challenges that lie at the core of current debates in the United States about documenting student learning. Written by higher education researcher Clifford Adelman, the study explores the core features of change in Europe that have been created jointly by higher education administrators, faculty, students, and national ministries of education.