The challenges of learning when there are no tasks I like exactly this format:
Knowledge -&gt; Task -&gt; Knowledge -&gt; Task

And the knowledge is required to do the following task. Not more. Not less. Therefore you know that the task is solvable and you do have enough knowledge. In other words:
Knowledge1 -&gt; Task(requires only Knowledge1) -&gt; Knowledge1+Knowledge2 -&gt; Task(requires only Knowledge1+Knowledge2)

How do you call this method of teaching?
Books and courses that I see are all the same:
Knowledge -&gt; Knowledge -&gt; Knowledge -&gt; Knowledge -&gt; Knowledge -&gt; Knowledge -&gt; Knowledge -&gt; End.

I think I have to read till the end, even summarize in mindmaps, just to realize later that I have no idea where to start.
Therefore I need to create my own tasks in between.
But I don't know whether how I solve my tasks is accurate.
How could I handle this?
I think you could propose for yourself such a task solution of which you could publish in some community.
For example, if you're studying French, you could translate something form French to your native language and publish on Medium