Bad smells are sub-optimal code structures that may represent problems needing attention.
We conduct an extensive literature review on bad smells relying on a large body of …

While functionality and correctness of code has traditionally been the main focus of
computing educators, quality aspects of code are getting increasingly more attention. High …

Block-based programming languages like Scratch, Alice and Blockly are becoming
increasingly common as introductory languages in programming education. There is …

Abstract ROS, the Robot Operating System, offers a core set of software for operating robots
that can be extended by creating or using existing packages, making it possible to write …

The blocks programming community has been preoccupied with identifying syntactic
obstacles that keep novices from learning to program. Unfortunately, this focus is now …

With the introduction of computer programming in schools around the world, a myriad of
guides are being published to support educators who are teaching this subject, often for the …

Programming and computational thinking skills are promoted in schools worldwide.
However, there is still a lack of tools that assist learners and educators in the assessment of …

The recent shift in compulsory education from ICT-focused computing curricula to
informatics, digital literacy and computer science, has resulted in children being taught …

Block-based programming environments like Scratch foster engagement with computer
programming and are used by millions of young learners. Scratch allows learners to quickly …

Bugs in SCRATCH programs can spoil the fun and inhibit learning success. Many common
bugs are the result of recurring patterns of bad code. In this paper we present a collection of …