{"type":"rich","version":"1.0","description":"Players flip tiles to find matches between a shape diagram and its perimeter value or between a rectangle's dimensions and a rectangle with the same perimeter. This builds quick recognition of how side lengths determine perimeter. (3.MD.D.8)","title":"Perimeter Puzzle","width":720,"html":"<iframe src=\"https://arcade.padlet.com/embed/yGjxGDwXr6\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","height":480,"provider_name":"Padlet Arcade","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1780638628158&hashid=yGjxGDwXr6","provider_url":"https://arcade.padlet.com"}