The aim of this paper is to summarize the Work in Progress related to the design of a Collaborative Robotic Educational Tool. This tool arises to improve STEM (Science, Technology, Engineering and Math) educational programs for school students. The design is intended to cover different specifications such as: scalability, modular capabilities, reconfiguration possibilities and compatibility with the aim of promoting the innovation and the motivation of the students during the learning process. Furthermore, the main objective of the mentioned platform is focused on getting a cost effective tool which can be included easily within educational institutions with a low budget restriction. This platform is intended for students which are able to use textual programming languages. Furthermore, the platform is expected to cost below 100 euros.