{"type":"rich","version":"1.0","title":"Scalar Matrix Multiplication","description":"Activity where students sort matrix multiplication examples into positive, negative, and zero scalar categories, demonstrating how scalar values change matrix entries, aligning with standard HSN.VM.C.7.","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1774341855489&hashid=9Ljk5gdXKO","html":"<iframe src=\"https://arcade.padlet.com/embed/9Ljk5gdXKO\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}