This research suggests utilizing collaborative learning among high school
students for better performance on ecology inquiry-based projects. A case study of nine
12th grade students who participated in collaborative learning sessions in the open field and
in class is examined. The results show that the students concentrated on discussing the
methods of measurement and observation in the open field, rather than the known methods
from class or from the laboratory. Another major part of their discussions concentrated on
knowledge construction. Knowledge construction occurred between students with same or
similar learning abilities. The role of the teacher in these discussions was crucial: she had to
deal with and dispel misconceptions; and she had to bridge the gap between low-ability and
high-ability students, for enabling meaningful learning to occur. The article ends with a
number of recommendations for using collaborative learning as a tool for achieving
meaningful learning in high school ecology inquiry-based projects.