Our Ethos

At Ysgol Rhosnesni High School we are proud of the achievements of our students in a wide range of fields both academic and enrichment, and we believe in high standards and expectations. We believe that we can make a positive difference to the future life-chances of each and every young person.

We believe in working together with our students to develop their future roles as ambassadors of learning, citizens and workers and aim to equip them with the necessary skills, knowledge and understanding they will need for future adult life.



Key stage 3 Science


At key stage 3, we use complete mastery.  This is an evidence-informed course to teach Science through a 5-year curriculum.  The focus of the delivery is mastery of students’ understanding of concepts and thus improving their outcomes in the difficult parts of GCSE: specifically, the application of scientific knowledge and understanding and the analysis of data.







There are 25x key concepts and enquiry skills to cover in year 7.















There are 21x key concepts and enquiry skills to cover in year 8.







For each key concept, we use a 5-stage strategy for achieving mastery – the 5As.







  • Pre-assessments to check prior concept understanding


  • Explorations to build concepts by explaining phenomena


  • Extensive problem-solving


  • Diagnostic quizzes to identify weak understanding


  • Challenges to use higher-order thinking

Plus there’s a summative assessment:

  • Test Exam-style quiz to measure progress in acquire, apply and analyse.

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