Fifth Graders’ Learning about Simple Machines through Engineering Design-Based Instruction Using LEGO Materials

This  Project drew heavily upon Sternberg’s triarchic intelligence theory in both the designand the structure of the research and assessment techniques. Engineering design challenges enable each of the three types of abilities analytical, practical and and creative based on Sternberg’s triarchic intelligence theory and the traditional memory skills wth in discipline on science.This study is subset of a larger research project named Transforming Elementary science Learning Through LEGO engineering design For the purposes of the project four design-based elementary  science curricular units were devoloped and implemented. The results of this study confirmed the results of previous research that engineering design can be used effectively to teach science content and that engineering design activities which encourage students to practice theoretical scientific principles in everyday contexts. Based on these comprehensive results they found the triarchic intelligence theory tobe a useful framework for designing effective curricula.As a result of their findings they are undertaking additional design work which is requrired to devolop focused and  effective activities to help ameliorate students' misconceptions about simple machines.

Question:
1)What is the role of the teacher in this method?