- What is subjected in each school subject is a form (or logical system).  And a form (or logical system) is a tool.
	
 
 
 
- The learning of a form progresses with being oriented by the question :
	
 
 "What kind of things is the form is applied to ?"
	 
 
 
- The goal of this learning is that the instrumental meaning of the form is understood.
	
 
 
	- Learning a form is nothing but leaning the instrumental meaning of a form.