This is the multimedia object which I improved. I choose “Magic Tiles” because I think this game could train people’s brains. I add an interactive question to the H5P and I cut out the advertisements in the game to make the video be more effective. Based on the topic we have covered, I could summarize few reasons why this multimedia object is effective. First of all,  this video is simple and short. This is related to the multimedia principle. Making the video be short and simple directly show the rule of the game and how to play the game. It will not cost people lots of time. In addition, as the Dual Coding theory emphasized, the video is more interesting and memorable than just the rules with words. It is very important that use visuals and sound together in a lesson. Third, I did not add my voice in the video because I think the outside voices will affect the learner’s thinking when they are watching a video of the game. At least for my own, I don’t like to listen to the rule if I could watch a sample video. Too much voice will increase the learner’s cognitive load. Fourth, as the SECTIONS model explains, no cost of a video is better. Therefore, I think this multimedia object is effective in increasing knowledge.