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Photo of the TaPrEC+mBot environment. TaPrEC+mBot is a tangible programming environment designed to provide children with an engaging introduction to computer programming. As show in the image, it consists of four parts: i) hardware: notebook and Radio Frequency Identification (RFID) system (tag and reader), ii) programming blocks which is a set of colored pieces of puzzle-like wooden blocks containing an RFID tag on one side and an embossed symbol on the other, iii) mBot, a robot car that we used to represent the physical output of tangible programs and iv) software: a control program that we developed in the mBlock, a Scratch-based programming software tool, to allow communication via Bluetooth between the programming blocks and the mBot.