Professor Cai has received a grant of $1.5 million from the National Science Foundation for a three year project titled " Longitudinal Investigation of the Effect of Curriculum on Algebra Learning from the Middle Grades through High School (LieCal-High School)". This project will investigate how different types of middle school mathematics curricula affect the learning of high school mathematics for a large sample of students (over 4,000) from ten high schools in an urban school district. This LieCal-High School Project is an extension of the previous NSF-funded LieCal-Middle School Project (see the following link for a UDaily article: http://www.udel.edu/PR/UDaily/2006/jan/NSF011706.html). Therefore, this project not only allows for investigating the impact of curricula on students’ learning across their middle and high school years, but also allows for examining the development of students’ algebraic thinking across seven years (grades 6-12). This is the only research project funded by NSF to investigate the curriculum effect across grade bands. Funds are available to support two full-time graduate students, and two undergraduate students.