当我们晚上在教室的黑板上写字时,有时候灯光很暗,看不清字,我就想发明一种发光的黑板,这样就可以看清黑板上的字了。这种黑板是充气式的,它采用的是环保无毒的材料。当我们出去上课或者在室外活动时,大黑板不容易携带,我的黑板就方便多了,只要充上气就行了。(指导老师:刘希涛) When we were writing on the blackboard in the classroom at night, sometimes the lights were very dark and could not see the words. I wanted to invent a luminous blackboard so that I could see the words on the blackboard. This blackboard is inflatable, it uses environmentally friendly non-toxic materials. When we go out to class or outdoor activities, the big blackboard is not easy to carry, my blackboard is more convenient, as long as the gas on the line. (Instructor: Liu Xitao)