Indian education system is yet to introduce design and technology subject in the curriculum. Design and technology courses in schools bring about a holistic development of students. This paper discusses the planning, development and implementation of a workshop based on tenets of design and technology. 19 students belonging to class VIIth (12 boys and 7 girls) participated in the workshop. The students were presented a realistic technical challenge in which they had to in groups design and produce an artefact which could move on water keeping in perspective the design brief presented to them. This paper discusses the planning and the actual model made by student groups. Barlex and Rutland (2004) framework is used to discuss the design decisions made by the students. This paper provides some implications for teacher professional development programs in terms of preparing teachers for using design and technology based interventions in classrooms.