检核表法。检核表法是根据需要解决的问题,或者需要创造发明的对象,列出有关的问题,然后一个个来核对讨论,从中获得解决问题的方法或创造发明的设想。在具体应用中表现为“加一加”、“减一减”、“变一变”、“联一联”、“代一代”等,这些方法在试题改编方面有很大的实用价值。扩展用途法。扩展用途法是把一个事物的现有用途扩展到多方面用途,使其发挥更大作用的创造技法。如可以扩展电能表的用 Checklist method. The checklist method is based on the problems that need to be solved, or need to create the object of the invention, list the relevant issues, and then one by one to check the discussion, to obtain the solution to the problem or to create the idea of ​​the invention. In specific applications, they are represented as “plus one plus”, “one minus one”, “one change”, “joint one”, “generation one generation”, etc. Adaptation has great practical value. Extended use method. The extended use law is a creative technique that extends the existing use of a thing to multiple uses to make it more effective. If you can expand the use of energy meters