The objective of this research was to know the effect of Project Based Learning (PjBL) to the attitude and student cognitive achievement in SMAN 2 Malang. This research applied quasy experimental with non-equivalent control group design. The populations of this research is all student of class X SMAN 2 Malang on academic year 2008/2009. https://www.parisnaturalfoodes.shop/product-category/valerian-root/