scientific knowledge is rational using. This research aimed to development of science learning management model to inquiry integration for improving achievement. The collection came from documentary, brainstorming with science teachers instructional and experts for developing and evaluating model, using a model to instructional for studying efficiency in accordance with the criteria 80/80, testing achievement, survey by questionnaire for studying satisfaction with secondary education in 12th grade students at Chumphaesuksa school, Thailand to the data. Science learning management model to inquiry integration including a importing lessons step, hypothesis step, experiments and surveys step, conclusion step, and promoting application step, and suitability of model at a level of high levels. Efficiency in using a model to instructional have to criteria efficiency in average percentage of 86.50/94.50. Students' achievement to higher scores after than before to statistically different at significance level of .01. Students' satisfaction at a level of high levels. In the finding will be presented and discussions.

Keywords : science learning management model, inquiry integration, improving achievement