There are known misconceptions about variables which are mostly the same since the first studies since more than 30 years ago. Consciousness about the misconceptions in programming can be crucial for teaching and learning programming for novices because, if we are aware of them, maybe we can minimise or even prevent them. Researchers mostly…

In the first issue of "Australian Educational Computing," in 1986, Cumming and Abbott reported a controlled comparison of top-down and bottom-up teaching strategies for Grade 5 and 6 students' use of a simple logic programming language. They found that both strategies were rated highly by students and teachers, and gave useful learning;…