Por si algún profe quiere investigar sobre estas 70 apps y ver si le son de utlidad. Yo uso algunas // The 70 Best Apps For Teachers And Students - Edudemic. These are listed as itunes apps, but I'm sure a lot of them can be found for Android as well.
Chinese numbers in Mandarin pinyin and hand gestures. This is how one could show different numbers with one's hands in Chinese culture - I used to know all of these when I was little, but have a hard time remembering past 6 now. So useful when you to