This Grade 12 Biology rubric is designed to provide clear; objective criteria for assessing student performance across key learning outcomes. The rubric evaluates knowledge and skills in four main categories: content mastery; scientific inquiry; communication; and application of concepts. Each category includes specific performance descriptors to guide both instruction and assessment; ensuring alignment with curriculum standards. Content mastery measures the student’s understanding of core biological concepts; including cellular processes; genetics; evolution; and ecology. Scientific inquiry assesses the ability to design experiments; analyze data; and draw evidence-based conclusions. Communication evaluates clarity and precision in presenting scientific ideas; whether in written reports; diagrams; or oral presentations. Application of concepts tests the student’s capacity to connect biological principles to real-world scenarios; demonstrating critical thinking and problem-solving skills. The rubric uses a four-level scoring system; ranging from limited to exemplary performance; allowing for detailed feedback on strengths and areas for improvement. By providing transparent expectations; the rubric supports student self-assessment and goal-setting; fostering a growth mindset. Teachers can use this tool to deliver consistent; fair evaluations while identifying instructional gaps. Educational benefits include promoting higher-order thinking; encouraging scientific literacy; and preparing students for post-secondary studies in STEM fields. The rubric also emphasizes transferable skills such as analytical reasoning; effective communication; and collaborative learning. Its structured format ensures that assessments are meaningful; measurable; and directly tied to learning objectives; ultimately enhancing student achievement in Grade 12 Biology.