The research aims to identify the effect of the Osborne-Barnes model on the creative solution to problems in life skills and critical thinking of second-graders. The research community requires the choice of one secondary school in Baghdad and only female schools, provided that the number of people in the second intermediate grade is not less than two divisions. The researcher selected the study sample from all the second grade intermediate students for the academic year (2016 - 2017) from Al-Furat Girls School of the Directorate General of Education Baghdad Al-Karkh / 1 and the chosen mean (75) students distributed randomly on two divisions (A, B). The total number of female students in the Division was (38) students studying using the Osborne-Barnes model for the creative solution of problems, and the total number of students in Division B was 37 students who studied in the usual manner. The parity of the two groups was verified: age in months, IQ degree, previous achievement and critical thinking, life skills scale, and previous information test. The two groups were equal in all variables. As for the research tool, the researcher prepared a test for critical thinking, whose final form consisted of (60) paragraphs and the scale of life skills, which consisted of (44) paragraphs. After the researcher completed the research experiment according to what was planned in the development of critical thinking and the scale of life skills found the experimental group, which is modeled on the Osborne-Barnes model of creative problem solving, is superior to the development of critical thinking and life skills on the control group taught in the usual way. (Published abstract)