Hi Yiyang, thanks for your post. I think you did a good job of describing the differences between SMAR and TPACK, as well as the video that you edited. Sometimes SAMR can be too many layers, but TPACK on the other hand is pretty clear with the main three sections in the circle. I personally enjoyed the video editing this week as well as you do, and the TPACK model can be very useful when it comes to different learning goals and audiences. Moreover, I wonder if you could add some references to your blog to support more on your point.