Mathematics is about more than knowing procedures or getting the right answer. It is about developing reasoning skills, understanding mathematical ideas, and knowing how and when to use mathematics in different situations.

Volume four of the IEA Research for Educators explores meaning-making in mathematics teaching and learning, looking at how evidence from IEA’s TIMSS (Trends in International Mathematics and Science Study) can support it. Through practical examples, classroom-based reflections, and research-informed guidance, it helps educators strengthen students' conceptual understanding, mathematical reasoning, and problem-solving skills.

The volume is accompanied by a range of open-access resources designed to help teachers, teacher educators, and professional learning communities put TIMSS evidence into practice through reflection, discussion, and classroom application.

• Theory: Volume four provides a theoretical reference for mathematical meaning-making using insights from TIMSS
• Practice: The highlighted chapter three presents six country case studies illustrating meaning-making in mathematics classrooms
• Digest: An IEA Teacher Snippet provides a practical route to achieving mathematics with meaning
• DIY: Downloadable classroom materials that offer TIMSS tasks for practical, classroom-ready mathematics activities and teaching guidance