Analytical thinking skills were an essential learning process for primary students. The research objectives were to 1) study the current condition, problems, and good practices regarding teaching and learning. 2) develop a blended instructional model using the inquiry process with digital games to enhance analytical thinking skills for elementary school. 3) study the results of using the instructional model. The research and development process was divided into 3 phases. Phase 1; study the current conditions, problems, and good practices regarding teaching and learning, the sample group included 377 teachers and 11 teachers. Phase 2; develop a blended instructional model, the sample consisted of 7 and 7 experts. Phase 3; study the results of using the instructional model the sample consisted of 34 grade 6 students. The data were analyzed by basic statistics and hypothesis testing statistics. The research found that 1) The current condition and overall problems were moderate level. The good practices included blended learning methods, the inquiry process, and instructional media with digital games. 2) The blended instructional model using an inquiry process along with a digital game included 4 core components: principles, objectives, management of teaching-learning processes, and measurement and evaluation. Seven experts evaluated and certified this instructional model that was appropriate in all aspects at a high level. 3) The results of using the instructional model found that (1) the analytical thinking skills of students who studied using the instructional model overall post-test were significantly higher than pre-test at the 0.05. (2) Measuring students' learning achievement overall score post-test was significantly higher than pre-test at the .05. (3) Students' post-test scores of the experimental were significantly higher than the control group at the 0.05. (4) Students' post-test scores of the experimental were significantly higher than the control group at the 0.05.