You will need
- Problems in mathematics, physics;
- logical tasks.
For a start, remember this rule of thumb, which can be, and is not directly related to the development of the deduction, however, is the key to success in any endeavor. The rule reads as follows: be genuinely interested in what you are learning. If this interest will be superficial and only in order to produce the impression on someone, to develop deductive ability will not work. You should be sincerely interested in learning.
To accustom your brain to a deep analysis, make it a rule to get to the essence of the studied material. If you are learning a new subject, not slide on the surface and explain themselves where some rule or theoretical construct. If the scope of your activities is far from training, you can apply this rule to any material, which you read, up to tabloid Newspapers. Reading the article, ask yourself the question, what are the motives of people about whom it tells what the hidden meaning might be behind their actions.
Develop flexibility of thinking. Remember that any task can be more than one solution, and your task is to find as many as possible. When you see only one way out, do not rest until you find them another ten. Initially, it will be difficult to find them, but eventually find several options for any task you will be easier and easier.
Learn to generalize, to see the private General and Vice versa. The ability to see in the specific case of the typical features is the method of deduction.
To develop deductive ability is quite real, however, it is impossible for one or even a few days. It is a long and complex process-only diligent and interested people.
Allot a certain amount of time on the development of deductive reasoning every day. Take this seriously and thoroughly. Try to meditate more deeply on any task.