This research aims to explore the problems that teacher have experienced their opinion towards effectives and and functionality of teaching-learning process of Primary Science and Technology curriculum started to be implemented in 2004-2005 academic year in Turkey. The qualitative research design is used in this study. Research data are collected through interviews (semi-structured) with Science and Technology teachers who works at various primary schools in Kocaeli. The data are presented through classified as themes and codes. 75% of teachers have expressed that they realize their acquisition effectively. Teachers of Science and Technology course have indicated that they have a couple of problems such as crowded classes, insufficient labs and equipment etc. Additionally, teacher's opinions towards alternative evaluation methods of Science and Technology course are studied. 25% of teachers have expressed that the most important problem is shortage of time. They have also implied that they have usually used blackboard and book to perform on Science and Technology course.