Cooperative learning in third graders' jigsaw groups for mathematics and science with and without questioning training.

Background: There is much support for using cooperative methods, since important instructional aspects, such as elaboration of new information, can easily be realized by methods like 'jigsaw'. However, the impact of providing students with additional help like a questioning training and potential limitations of the method concerning the (minimum) age of the students have rarely been investigated.

Aims: The study investigated the effects of cooperative methods at elementary school level.