Sanitary and Comfortable Classroom 教室環境の美化 Tetsuya SAGAWA Kanazawa University, Japan ICBS SCHOOL HEALTH Goal of Healthy Classroom Environment 教室環境美化の目的 We, teachers, should improving the healthy school environmental condition. 子どもの健康的な学習環境を改善する Effective Leaning 学習効率の向上 Healthy School Life 健康な学校生活 Growth and Development 発育発達 Prevention against Disease 疾病予防と健康増進 Promoting School Environment by PDCA Method Plan Clarify the goal and method Do Examine the present status Execute the improving operation Check Data collecting and analysis Evaluate the difference between before and after Action New action based on the evaluation Examination Items Sanitary environment in classroom Lightness on the desk and chalkboard, Color of chalkboard, Color of wall Desk and Chair, Classroom cleaning, Dust, Garbage, Noise, and so on Lightness in the classroom Lightness of easy to read book Balance of brightness from 300 to 1500 lux Lightning on the desk Examination points windows blackboard 黒板 窓 色 照明 477 340 621 205 99 60.6 370 75.6 入り口 121 128 155 131 413 170 5 entrance 126 132 174 137 173 193 4 191 312 179 203 332 72.8 入り口 167 Lightness of chalkboard Blackboard window 窓 477 340 621 205 99 370 75.6 entrance 入り口 color 色彩 照明 Light on Light off 黒板 121 128 155 131 413 170 5G 60.6 126 132 174 137 173 193 4/4-3/4 72.8 entrance 入り口 167 191 312 179 203 332 Lightning meter Measurement procedure ① Turn switch to “×1” POSITION. ② Read indicator at the measurement point. ＊Attention to the standing position of tester. ＊Attention to the surface angle of lightning meter, read the highest value. ③ If the value indicates more than 1500 lux, turn switch to “×10” POSITION. Correct value become 10 times of the indicator value. Example ; Indicator value 500 → 5000 lux. ④ After measurement, turn switch to “OFF” POSITION. Data sheet of measurement BLACKBOAD date SAMPLE 1 upper-left 131 2 upper-center 413 3 upper-right 170 4 center-left 137 5 center-center 173 6 center-right 193 7 lower-left 179 8 lower-center 203 9 lower-right 332 color green discolored little light above the boad none / Solution for the bright classroom be more bright Change color of wall more bright Window size, glass, new window Put some lights from the ceiling be more dark Protect from direct sunlight Use curtain effectively Desk and Chair 机，椅子 Suitable size for student’s sitting height not too low, not to high, not uneasey Flat surface Good Sitting Position Maintains good eyesight Prevents fatigue Makes good efficiency of learning Standard size is calculate using stature Desk height(cm)= 6/15*stature(cm)+4 Chair height(cm)= 4/15*stature(cm)-2 Optimal height of desk and chair Standing Height desk height chair height standard 40 22 90.0 85.0 ～ 95.0 43 24 97.5 92.5 ～ 102.5 46 26 105.0 100.0 ～ 110.0 49 28 112.5 107.5 ～ 117.5 52 30 120.0 115.0 ～ 125.0 55 32 127.5 122.5 ～ 132.5 58 34 135.0 130.0 ～ 140.0 61 36 142.5 137.5 ～ 147.5 64 38 150.0 145.0 ～ 155.0 67 40 157.5 152.5 ～ 162.5 70 42 165.0 160.0 ～ 170.0 73 44 172.5 167.5 ～ 177.5 76 46 180.0 175.0 ～ 185.0 range Keep clean in the classroom Solution process of the problem 1) 2) 3) 4) 5) 6) 7) 8) Find problems of school health with all children Place problems in order and select the most serious problem Gather data on the problem Find a solution of the problem Attempt the solution of the problem Take data after the attempt Compare data between before and after and evaluate the attempt Discuss what is the most serious problems again What is comfortable classroom? Brightness, Noise, Temperature, Humidity, Dust, Smell Status of floor ; flat, no hole, slippery, nail, trash, water Status of wall and window ; nail, electric wire, grass broken, leakage of water Desk and chair ; broken, rickety, nail, uneven, uneasy Other ; leak in the roof, narrow, fragile building, insects, animals, light, handicap studdent Any dangerous happening or trouble Example discussion How do you solve the problems? Items Before data Brightness Under 200, very dark Noise good Temperature 40 degree, too hot Trash sand, plastic bag, snack Desk uneven Chair nail, rickety window Don’t open level Solution Priority Example discussion How do you solve the problems? Items Before data level Brightness under 200, very dark serious Noise easy to hear good Temperature 40 degree, too hot very serious Trash sand, plastic bag, bad snack Desk uneven bad Chair nail, rickety serious window don’t open bad Solution Priority Example discussion How do you solve the problems? Items Before data level Solution Brightness under 200, very dark serious change the color of wall white Noise easy to hear good Temperature 40 degree, too hot very serious Trash sand, plastic bag, bad snack clean up everyday Desk uneven bad repair Chair nail, rickety serious repair window don’t open bad repair make new windows at the wall Priority Classroom sanitation 教室衛生 Keep clean regularly, everyday 定期的な清掃 Clean with all student as education 全員参加 Wipe with wet dust-cloth ぬれ雑巾でのほこり取り Collect trash and garbage separately ゴミの分 別収集 Dump everyday and sanitary wastebasket 毎日のゴミ捨て Sanitary rubbish dump ゴミ捨て場の衛生 Dispose garbage Decrease Garbage ゴミを捨てない，減らす Clean everyday 毎日掃除をする Collect separately 分別収集 Don’t litter 散らかさない Reuse and ｒｅｃｙｃｌｅ 再利用とリサイクル ゴミの処分 Collection of garbage in case of Thai Project Separate collection Garbage bank (Recycle) ‘School Health’ is an educational process for sustainable development
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