Elementary schools 2 School students Students 2 Condition 1 Education computing 1 Education policies 1 Game-based Learning 1 Hot topics 1 In-depth interviews 1 Learning attitudes 1 Learning problem 1 Literature reviews 1 Logical thinking 1 Logical thinking abilities 1 Methods and materials 1 Problem-solving abilities 1 Questionnaire surveys 1 Research method 1 Simple++ 1 Student learning 1 Surveys 1