How Gaming and Formative Assessment Contribute to Learning Supplementary and Complementary Angles

This chapter presents an empirical research where the authors developed tasks based on a digital game supported by assessment strategies. The study is interpretative in nature, in a case study design. The authors designed tasks with technology and assessment strategies in a collaborative work context implemented in a mathematics classroom with 5th grade students (students 10 years old). The results evidence that the use of a digital game and formative assessment have contributed to the learning of complementary and supplementary angle pairs, giving meaning to their utilization as an effective strategy.