การสร้างแผนการจัดการเรียนรู้เรื่อง อัตราส่วน สัดส่วน และร้อยละ ที่เชื่อมโยงคณิตศาสตร์กับวิชาชีพเกษตรกรรม สำหรับนักเรียนระดับประกาศนียบัตรวิชาชีพ วิทยาลัยเกษตรและเทคโนโลยีตาก

Abstract

This independent study was to construct lesson plans on ratio, proportion, and percentage connecting with agriculture occupation for vocational certificate students, Tak College of Agriculture and Technology. To construct the lesson plans by starting from studying vocational certificate curriculum B.E. 2556 on agriculture track, guideline for constructing lesson plans, and guideline for connecting mathematics before analyzing and connecting knowledge, contents, and mathematics process to agriculture occupation. Then 5 lesson plans connecting mathematics to agriculture occupation were constructed. Each plan focused on instructional activities that opened opportunity for the students to put into practice by themselves both in group and individually via the agriculture occupation concerned situation with which the students were familiar to lead to knowledge construction on part of the students. Afterward, the lesson plans was assessed on their quality by 5 experts on teaching mathematics and 3 experts on teaching agriculture along with their recommendations which were used as the guideline for improving the lesson plans. As results of the study, there were 5 lesson plans on ratio, proportion, and percentage connecting with agriculture occupation. The first through the third lesson plans are on ratio, equality of ratio and ratio of many numbers. The fourth lesson plan is on proportion and the fifth lesson plans is on percentage. The quality of the lesson plans as assessed by experts had yielded the average mean score of 4.86 showing the quality of the lesson plans which were relevant and appropriate for being used to organize mathematics learning activities for the vocational certificate students, Tak College of Agriculture and Technology.