<p>We developed a comprehensive learning-support system for Scratch, a visual programming language. It provides automatic assessment of computational thinking concepts such as conditional statements, loops, data, and parallelism in order to develop students' programming skills. It also provides more than 60 sample functions that are commonly used in Scratch projects, and analyzes automatically which functions are used in a project. The system could be used in supporting mentors and learners of programming learning, and analyzing a lot of programs to understand how learners master programming.</p>