The content of natural science education gives a chance to the dynamics and structure of the educational process. However, the adaptation of natural science knowledge system depends on both the teacher (choosing and applying teaching methods and forms, etc.) and the pupil (the methods of learning, motivation, general abilities). The diversity of teaching and learning content, forms and methods, activities are typical of natural science education. All that makes the educational process effective: develop intellectual knowledge and skills, set out conditions for intense pupils’ activities, shape thinking, foster aesthetic feelings, etc.
There are different strategies and methods for teaching science. Also there are many different ways in which science teachers can effectively teach students. The problem consists in that how to choose the most effective methods and strategy in each concrete situation. It is obvious, that the information itself is known as the content; how that content is shared in a classroom is dependent on the teaching methods. For example, lecture is a way of providing students with basic knowledge. On the other hand it is well known that lecture has the least impact on students as well as the lowest level of student involvement. It is not so good from point of view of constructivistic teaching. The one of the main points of constructivistic approach is to increase the level of impact and involvement for students. It is clear that reflective inquiry has the highest level of student involvement. On the other hand, reflective inquiry offers opportunities for students to use knowledge in a productive and meaningful way. It is important to notice that teachers should recognize from their practice that inquiry-oriented approach brings deeper understanding, better results of students and their higher motivation and interest to study science (Nezvalova, 2011). Different methods can be effectively used in science teaching: lecture, reading information, audio-visual presentation, demonstration, observation, field trips, interviewing, brainstorming, small group discussions, experimenting, problem-solving activities etc.