The purpose of this research is the development of the skills of observation by Inquiry process 5e group learning science , title classification of plants and reproduction of animals and propagation.For prathomsuksa 5 with a population is prathomsuksa 5 number 10 people during the academic year 2557 which comes from the purposive sampling. The instruments used in the study include is learn a lesson plan by inquiry method (5E) , 2 lesson plans for title classification of plants and reproduction of animals and propagation and use the pre-test and post-test.
The results showed that students with inquiry method (5E), title classification of plants and reproduction of animals and propagation, For prathomsuksa 5. Students have the skills of observation of students differ significantly 0.01 which pre-test and post-test that students studying the teaching method of inquiry 5E have the skills of observation increased.