The dissertation instructional materials industry created for use as instructional curriculum. The diploma major in mechanic, Rajamangala University of technology Lanna series teaching materials industry consists of Teaching lesson plans, leaf content exercises answer exercises the following content, properties of metal and non-metal. Atomic structure and sealing structure of the metal alloy. Instructional materials in industry. Project design for use in teaching materials in industry.The result of evaluation from experts. The results show that the average quality level in the whole of instructional material industry, found that overall quality is x ̅ = 4.545 and value. S.D = 0.605 quality level is very good, so experts. Conclusion the quality of instructional course materials industry standard that it is expected 3.5 up to, and can be used in the quality.
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