PowerPoint is a learning aid, developed for presentations. PowerPoint has "dynamic" features for creating presentations with dynamic actions. The knowledge of the infinite backward multiplier is difficult to understand. One of the difficulties in understanding this knowledge is infinity, "dynamic". In this study, we use the dynamic features of PowerPoint to design the sum of an infinite geometric sequence teaching. The study was conducted with 32 students in 11th grade. Students experimented with the dynamic model in PowerPoint. Research results show that the flexible use of PowerPoint's dynamic features allows the creation of dynamic models of the sum of an infinite geometric sequence. Dynamic models have made it easier for students to build knowledge, creating geometric images of infinite sums. Moreover, with the dynamic features of PowerPoint, creating artistic images, attracts students to actively participate in learning.