The purpose of this study was to analyze the cognitive artifacts on pre-service teachers' engineering
design activity from a distributed cognition perspective. For this study, a engineering design task was
developed, which was evaluated by four science education experts. Data on production of external
representation such as, verbal language, gestures, symbolic markings, diagrams, drawings were gathered as
cognitive artifacts. Pre-service teachers created and used various types cognitive artifacts for communication,
explanation, reasoning during a engineering design activity. These results clearly means that cognitive
artifacts has a important role in the interaction between actors thereby, science class also need to be
analyzed on distributed cognition perspective including variable cognitive artifacts.