In an earlier study we had tested if observing a model collaboration or following a collaboration script could improve students' subsequent collaboration in a computer-mediated setting and promote their knowledge of what makes good collaboration. Both model and script showed positive effects. The current study was designed to further probe the effects of model and script by comparing them to conditions (model-plus, script-plus) in which the learning was further supported by providing elaboration support (instructional prompts and guided self-explanation). 40 dyads were tested, 8 in each of the following conditions: model plus elaboration, model, script plus elaboration, script, control. Observing a model collaboration with elaboration support yielded the best results over all other conditions on several measures of the quality of collaborative process and on outcome variables. Model without elaboration was second best. The results for the script conditions were mixed; on some variables even below those of the control condition.