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<p> <span lang="TH" style="font-size:16.0pt;line-height: 107%;font-family:"TH SarabunPSK",sans-serif;mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin;mso-ansi-language:TH;mso-fareast-language: EN-US;mso-bidi-language:TH">ตามที่ข้าพเจ้า</span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH">นางพัชรี ตีเงิน ตำแหน่ง ครู วิทยฐานะครูชำนาญการพิเศษ กลุ่มสาระการเรียนรู้คณิตศาสตร์</span><span style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH"> </span><span lang="TH" style="font-size:16.0pt; line-height:107%;font-family:"TH SarabunPSK",sans-serif;mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language:TH;mso-fareast-language: EN-US;mso-bidi-language:TH">ได้รับมอบหมายให้ปฏิบัติงานสอน</span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH"> ประจำ</span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH">ปี</span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: TH;mso-fareast-language:EN-US;mso-bidi-language:TH">การศึกษา 256</span><span style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH">8</span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: TH;mso-fareast-language:EN-US;mso-bidi-language:TH"> ข้าพเจ้าได้ดำเนินกิจกรรมและประเมินผลการจัดกิจกรรมโดยการศึกษาและจัดทำวิจัยในชั้นเรียนเรื่อง</span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH"> </span><span lang="AR-SA" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">การ</span><span lang="AR-SA" style="font-size:16.0pt;mso-ansi-font-size:14.0pt;line-height:107%; font-family:"TH SarabunPSK",sans-serif;mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin;mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:AR-SA">พัฒนาผลสัมฤทธิ์ทางการเรียนวิชาคณิตศาสตร์เรื่องการบวก การลบ การคูณและการหารพหุนาม ของนักเรียน</span><span lang="TH" style="font-size: 16.0pt;mso-ansi-font-size:14.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH">ชั้นมัธยมศึกษาปีที่ 2 </span><span lang="AR-SA" style="font-size:16.0pt;mso-ansi-font-size:14.0pt;line-height:107%; font-family:"TH SarabunPSK",sans-serif;mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin;mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:AR-SA">ก่อนและหลังการใช้แบบฝึก</span><b><span lang="AR-SA" style="font-size:18.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH"> </span></b><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: TH;mso-fareast-language:EN-US;mso-bidi-language:TH">เพื่อประเมินผลการจัดกิจกรรมตามหลักสูตรและแผนการจัดการเรียนรู้</span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH"> </span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: TH;mso-fareast-language:EN-US;mso-bidi-language:TH">ดังนั้น</span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH"> </span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: TH;mso-fareast-language:EN-US;mso-bidi-language:TH">จึงขอนำส่งผลการวิจัยในรูปแบบบทความวิจัยเรื่องดังกล่าว </span><span lang="TH" style="font-size:16.0pt;line-height:107%;font-family:"TH SarabunPSK",sans-serif; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:TH"> </span><span lang="TH" style="font-size:16.0pt; line-height:107%;font-family:"TH SarabunPSK",sans-serif;mso-fareast-font-family: Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language:TH;mso-fareast-language: EN-US;mso-bidi-language:TH">ตามเอกสารที่แนบมาพร้อมนี้</span></p>