Hi, Chole. When I click on the video you shared, I also think students will understand and be interested in this concept. This video with some light melody and interesting cartoon characters, will be more interesting than the traditional teaching. And this short video covers different shapes for students to think and calculate their perimeter. It can also deepen their thinking ability. When they encounter similar problems in the future, they will also remember this concept. I also agree with the technology you use. Using nearpod can let the teacher know the students’ understanding immediately. It can make teachers more targeted teaching.