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This book constitutes the refereed proceedings of the 9th International Conference on Informatics in Schools: Situation, Evolution, and Perspectives, ISSEP 2016, held in Münster, Germany, in October 2015.

The 17 full papers presented together with 1 invited talk were carefully reviewed and selected from 50 submissions. The focus of the conference was on following topics: sustainable education in informatics for pupils of all ages; connecting informatics lessons to the students´ everyday lives; teacher education in informatics or computer science; and research on informatics or computer science in schools (empirical/qualitative/quantitative/theory building/research methods/comparative studies/transferability of methods and results from other disciplines).

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Teaching Computer Image Processing Subject to Middle School Students: Cognitive and Affective aspects.- Analyzing Conceptual Content of International Informatics Curricula for Secondary Education.- It´s computational thinking! Bebras tasks in the curriculum.- Comparing the Performance of Girls and Boys in Bebras Challenge.- Attitudes towards Computer Science in Secondary Education: Evaluation of an Introductory Course.- Typifying Informatics Teachers´ PCK of Designing Digital Artefacts in Dutch Upper Secondary Education.- Students´ Success in the Bebras Challenge in Lithuania: Focus on a Long-term Participation.- What Makes Situational Informatics Tasks Difficult.- A New Informatics Curriculum for Secondary Education in The Netherlands.- And Now What Do We Do with Our Schoolchildren.- Defining and Observing Modeling and Simulation in Informatics.- K-12 Computer Science Education Across the U.S.- Combining the Power of Python with the Simplicity of Logo for a Sustainable Computer Science Education.- A new interactive Computer Science textbook in Slovenia.- Computer Science in the eyes of its teachers in French-speaking Switzerland.- IT2School - Development of Teaching Materials for CS through Design Thinking.- "Why Can´t I Learn Programming?" - The Learning and Teaching Environment of Programming.

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