“…Description and Study Display of educational content in relevant locations [56], [60], [86] Information [45], [54] [95] Presentation of ideal behavior [64], [66], [67], [84] [69], [78] Demonstration [61], [63], [88] [91] Expanding the flexibility of training content by adding information to physical objects [38], [39], [41], [46], [80] [68], [69], [70], [75] [92] Facilitation of the skill transfer through imitation of the actual [14], [42], [43], [44], [45] Task support by presenting relevant information [16], [36], [41], [47], [49], [50], [51], [53] Practice [86], [87] [83] Feedback on the performance, problems, and ways to improve [39] [59] [65] Real-time feedback for motion compensation [71], [72], [75], [76], [78], [82] [41] Real-time visualization of invisible current conditions Feedback [93] learning prin...…”