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@This document (Lesson 4 - Teacher's corner) is re-created by administrator on 23 August 2017
@


1.1
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@Initial revision
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text
@{
    "_id": {
        "$oid": "59b670a32c4796014bf31203"
    },
    "_type": "GSystem",
    "access_policy": "PUBLIC",
    "altnames": "Lesson 4 - Teacher's corner",
    "annotations": [],
    "attribute_set": [],
    "author_set": [
        1
    ],
    "collection_set": [],
    "comment_enabled": null,
    "content": "<h1 dir=\"ltr\"><b id=\"docs-internal-guid-08e9c468-5bd1-6997-6a61-30eb2984dc1d\">\u091f\u0940\u091a\u0930 \u0915\u0947 \u0932\u093f\u090f \u0928\u094b\u091f</b><br />\r\n<script type=\"text/javascript\" src=\"/static/ndf/bower_components/videojs/dist/video.min.js\"></script> <script type=\"text/javascript\" src=\"/static/ndf/bower_components/videojs/dist/video.js\"></script></h1>\r\n\r\n<p dir=\"ltr\"><b id=\"docs-internal-guid-08e9c468-5bd2-b371-9548-166910a2100e\">\u0935\u093f\u0926\u094d\u092f\u093e\u0930\u094d\u0925\u093f\u092f\u094b\u0902 \u0915\u094b \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0928\u093e \u0905\u091a\u094d\u091b\u093e \u0932\u0917\u0924\u093e \u0939\u0948\u0964 \u0907\u0938 \u0905\u0927\u094d\u092f\u093e\u092f \u0915\u093e \u092e\u0915\u0938\u0926 \u092c\u091a\u094d\u091a\u094b\u0902 \u0915\u094b \u0910\u0938\u0947 \u092a\u094d\u0930\u092f\u094b\u0917\u094b\u0902 \u0938\u0947 \u092a\u0930\u093f\u091a\u093f\u0924 \u0915\u0930\u093e\u0928\u093e \u0939\u0948 \u091c\u093f\u0928\u0915\u093e \u0907\u0938\u094d\u0924\u0947\u092e\u093e\u0932 \u0915\u0930\u0915\u0947 \u0935\u0947 \u0905\u092a\u0928\u0947 \u092a\u0930\u094d\u092f\u093e\u0935\u0930\u0923 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u092a\u0930\u093f\u092e\u093e\u0923\u093e\u0924\u094d\u092e\u0915 \u0906\u0902\u0915\u095c\u0947 \u0907\u0915\u091f\u094d\u0920\u0947 \u0915\u0930 \u0938\u0915\u0947\u0902\u0964 </b><br />\r\n<br />\r\n<b id=\"docs-internal-guid-08e9c468-5bd3-170c-0471-823d79a03c32\">\u0906\u092a \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0947 \u0932\u093f\u090f \u0924\u0948\u092f\u093e\u0930\u0940 \u0915\u0948\u0938\u0947 \u0915\u0930\u0947\u0902\u0917\u0947? </b><br />\r\n<span style=\"font-size:20px;\">1. <strong>\u0930\u0940\u091c\u0947\u0928\u094d\u091f \u092e\u0947\u095b</strong> \u2013 \u091f\u0940\u091a\u0930 \u0915\u0940 \u092e\u0947\u095b \u0915\u094b \u0930\u0940\u091c\u0947\u0928\u094d\u091f \u092e\u0947\u095b (\u0935\u0939 \u091c\u0917\u0939 \u091c\u0939\u093e\u0902 \u092a\u094d\u0930\u092f\u094b\u0917\u0936\u093e\u0932\u093e \u092e\u0947\u0902 \u0930\u0940\u091c\u0947\u0928\u094d\u091f \u092f\u093e \u0905\u092d\u093f\u0915\u0930\u094d\u092e\u0915 \u0915\u094b \u0930\u0916\u093e \u091c\u093e\u0924\u093e \u0939\u0948) \u092e\u0947\u0902 \u092c\u0926\u0932\u093e \u091c\u093e \u0938\u0915\u0924\u093e \u0939\u0948\u0964 \u092e\u0947\u095b \u092a\u0930 \u0905\u0959\u092c\u093e\u0930 \u0915\u0947 \u0915\u0941\u091b \u092a\u0928\u094d\u0928\u0947 \u092c\u093f\u091b\u093e \u0926\u0940\u091c\u093f\u090f \u0914\u0930 \u0930\u0940\u091c\u0947\u0928\u094d\u091f\u094b\u0902 \u0915\u0940 \u092c\u094b\u0924\u0932\u094b\u0902 \u0915\u094b \u0907\u0938 \u0915\u094d\u0930\u092e \u092e\u0947\u0902 \u0932\u0917\u093e\u0907\u092f\u0947 - \u092e\u0948\u0928\u094d\u0917\u0947\u0928\u0940\u095b \u0938\u0932\u094d\u092b\u093c\u0947\u091f, \u0938\u094d\u091f\u093e\u0930\u094d\u091a, \u0938\u094b\u0921\u093f\u092f\u092e \u0925\u093e\u092f\u094b\u0938\u0932\u094d\u092b\u093c\u0947\u091f, \u0905\u0932\u094d\u0915\u0932\u093e\u0907\u0928 \u092a\u094b\u091f\u0947\u0936\u093f\u092f\u092e \u0906\u092f\u094b\u0921\u093e\u0907\u0921, \u0914\u0930 \u095e\u0949\u0938\u094d\u092b\u093c\u094b\u0930\u093f\u0915 \u090f\u0938\u093f\u0921\u0964&nbsp;<br />\r\n<br />\r\n\u0907\u0938 \u0935\u094d\u092f\u0935\u0938\u094d\u0925\u093e \u0938\u0947 \u0907\u0928 \u0930\u0938\u093e\u092f\u0928\u094b\u0902 \u0915\u093e \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930 \u0930\u0939\u0947 \u0935\u093f\u0926\u094d\u092f\u093e\u0930\u094d\u0925\u093f\u092f\u094b\u0902 \u0915\u0947 \u0938\u092e\u0942\u0939\u094b\u0902 \u092a\u0930 \u0906\u092a\u0915\u094b \u0928\u095b\u0930 \u092c\u0928\u093e\u090f \u0930\u0916\u0928\u0947 \u092e\u0947\u0902 \u092e\u0926\u0926 \u092e\u093f\u0932\u0947\u0917\u0940\u0964 \u0938\u093e\u0925 \u0939\u0940 \u0935\u093f\u0926\u094d\u092f\u093e\u0930\u094d\u0925\u0940 \u092d\u0940 \u0917\u0932\u0924\u093f\u092f\u093e\u0902 \u0915\u092e \u0915\u0930\u0947\u0917\u0947 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0938\u092d\u0940 \u0930\u0938\u093e\u092f\u0928 \u0909\u0938\u0940 \u0915\u094d\u0930\u092e \u092e\u0947\u0902 \u0930\u0916\u0947 \u0939\u0941\u090f \u0939\u0948\u0902 \u091c\u093f\u0928\u092e\u0947\u0902 \u0909\u0928\u0915\u093e \u092a\u094d\u0930\u092f\u094b\u0917 \u0939\u094b\u0928\u093e \u0939\u0948\u0964 \u092e\u0947\u095b \u092a\u0930 \u092a\u094d\u0932\u093e\u0938\u094d\u091f\u093f\u0915 \u0915\u0940 \u090f\u0915 \u092c\u094b\u0924\u0932 \u092d\u0940 \u0930\u0916\u093f\u090f \u0924\u093e\u0915\u093f \u092a\u094d\u0930\u092f\u094b\u0917 \u0916\u0924\u094d\u092e \u0939\u094b\u0928\u0947 \u0915\u0947 \u092c\u093e\u0926 BOD \u092c\u094b\u0924\u0932\u094b\u0902 \u0915\u094b \u0909\u0938\u092e\u0947\u0902 \u0916\u093e\u0932\u0940 \u0915\u093f\u092f\u093e \u091c\u093e \u0938\u0915\u0947\u0964&nbsp;<br />\r\n<br />\r\n<b>\u092a\u094d\u0930\u092f\u094b\u0917</b><b> </b><b>\u0915\u093e</b><b> </b><b>\u0938\u0902\u091a\u093e\u0932\u0928</b><br />\r\n<br />\r\n\u092f\u0939 \u0938\u0941\u0928\u093f\u0936\u094d\u091a\u093f\u0924 \u0915\u0930 \u0932\u0947\u0902 \u0915\u093f \u0938\u092d\u0940 \u0935\u093f\u0926\u094d\u092f\u093e\u0930\u094d\u0925\u093f\u092f\u094b\u0902 \u0928\u0947 \u092a\u093e\u0928\u0940 \u092e\u0947\u0902 \u0918\u0941\u0932\u0947 \u0911\u0915\u094d\u0938\u093f\u091c\u0928 \u0915\u094b \u092e\u093e\u092a\u0928\u0947 \u0915\u093e \u0935\u093f\u0921\u093f\u092f\u094b \u091c\u094b \u0928\u0940\u091a\u0947 \u0926\u093f\u092f\u093e \u0917\u092f\u093e \u0939\u0948 \u0909\u0938\u0947 \u0926\u0947\u0916 \u0932\u093f\u092f\u093e \u0939\u0948 \u0914\u0930 \u0938\u092d\u0940 \u091a\u0930\u0923\u094b\u0902 \u0938\u0947 \u092a\u0930\u093f\u091a\u093f\u0924 \u0939\u094b \u0917\u090f \u0939\u0948\u0902\u0964<br />\r\n<br />\r\n\u092a\u094d\u0930\u093e\u0915\u0943\u0924\u093f\u0915 \u091c\u0932 \u0938\u094d\u0930\u094b\u0924 (\u0924\u093e\u0932\u093e\u092c, \u0928\u0926\u0940/\u0928\u093e\u0932\u0947 \u0906\u0926\u093f) \u0938\u0947 \u0932\u093e\u092f\u0947 \u0917\u090f \u092a\u093e\u0928\u0940 \u0915\u0947 \u0928\u092e\u0942\u0928\u0947 \u0915\u094b \u090f\u0915 \u092c\u093e\u0932\u094d\u091f\u0940 \u092e\u0947\u0902 \u0921\u093e\u0932 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902 \u0914\u0930 \u0907\u0938\u0940 \u0924\u0930\u0939 \u0909\u092c\u0932\u0947 \u0939\u0941\u090f \u092a\u093e\u0928\u0940 \u0915\u094b \u090f\u0915 \u0926\u0942\u0938\u0930\u0940 \u092c\u093e\u0932\u094d\u091f\u0940 \u092e\u0947\u0902 \u0921\u093e\u0932\u093e \u091c\u093e \u0938\u0915\u0924\u093e \u0939\u0948\u0964 \u091f\u0940\u091a\u0930 \u092a\u093e\u0928\u0940 \u0915\u0947 \u0907\u0928 \u0928\u092e\u0942\u0928\u094b\u0902 \u0915\u094b \u092c\u094b\u0924\u0932 \u092e\u0947\u0902 \u092d\u0930 \u0915\u0930 \u0926\u093f\u0916\u093e\u090f\u0902\u0917\u0940\u0964 \u0938\u092d\u0940 \u091f\u0940\u092e\u0947\u0902 \u0905\u092a\u0928\u0947-\u0905\u092a\u0928\u0947 \u092c\u094b\u0924\u0932\u094b\u0902 \u092e\u0947\u0902 \u092a\u093e\u0928\u0940 \u092d\u0930 \u0915\u0930 \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0905\u092a\u0928\u0940 \u092c\u093e\u0930\u0940 \u0915\u093e \u0907\u0902\u0924\u095b\u093e\u0930 \u0915\u0930\u0947\u0902\u0917\u0947\u0964&nbsp;<br />\r\n<br />\r\n\u0905\u092c \u091f\u0940\u091a\u0930 \u0935\u093f\u0926\u094d\u092f\u093e\u0930\u094d\u0925\u093f\u092f\u094b\u0902 \u0915\u094b \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0915\u0947 \u0926\u093f\u0916\u093e\u090f\u0902\u0917\u0947 \u0914\u0930 \u0905\u0932\u0917-\u0905\u0932\u0917 \u091f\u0940\u092e\u094b\u0902 \u0915\u094b \u0905\u092a\u0928\u0940 \u0928\u093f\u0917\u0930\u093e\u0928\u0940 \u092e\u0947\u0902 \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0915\u0939\u0947\u0902\u0917\u0947\u0964 \u0939\u0930 \u091f\u0940\u092e \u0905\u092a\u0928\u0940 \u092c\u093e\u0930\u0940 \u0906\u0928\u0947 \u092a\u0930 \u0930\u0940\u091c\u0947\u0928\u094d\u091f \u091f\u0947\u092c\u0932 \u092a\u0930 \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0947\u0917\u0940\u0964 \u091f\u0940\u092e \u0915\u094b \u091c\u094b \u092d\u0940 \u0906\u0902\u0915\u095c\u0947 \u092e\u093f\u0932\u0924\u0947 \u0939\u0948\u0902 \u0909\u0928\u0915\u094b \u091f\u0940\u091a\u0930 \u0915\u094b \u0926\u093f\u0916\u093e \u0915\u0930 \u0909\u0938\u0915\u0940 \u091c\u093e\u0902\u091a \u0915\u0930\u0928\u0940 \u0939\u094b\u0917\u0940\u0964 \u0905\u092a\u0928\u0940 \u0938\u0940\u091f \u092a\u0930 \u091c\u093e\u0928\u0947 \u0938\u0947 \u092a\u0939\u0932\u0947 \u091f\u0940\u092e \u0905\u092a\u0928\u0947 BOD \u092c\u094b\u0924\u0932 \u0914\u0930 \u0938\u093f\u0930\u093f\u0928\u094d\u091c \u0915\u094b \u0916\u093e\u0932\u0940 \u0915\u0930 \u0926\u0947\u0917\u0940\u0964<br />\r\n<br />\r\n<b>\u0930\u0938\u093e\u092f\u0928\u0903</b><b> </b><b>\u0928\u093f\u092e\u094d\u0928</b><b> </b><b>\u0930\u0938\u093e\u092f\u0928\u094b\u0902</b><b> </b><b>\u0915\u0947</b><b> </b><b>\u0918\u094b\u0932</b><br />\r\n<br />\r\n<strong>\u092e\u0948\u0928\u094d\u0917\u0947\u0928\u0940\u095b \u0938\u0932\u094d\u092b\u093c\u0947\u091f \u0918\u094b\u0932</strong><br />\r\n48 \u0917\u094d\u0930\u093e\u092e \u092e\u0948\u0928\u094d\u0917\u0947\u0928\u0940\u095b \u0938\u0932\u094d\u092b\u093c\u0947\u091f (MnSO4.4H20) \u0915\u094b 80 \u092e\u093f.\u0932\u0940. \u0921\u093f\u0938\u094d\u091f\u093f\u0932\u094d\u0921 \u092a\u093e\u0928\u0940 \u092e\u0947\u0902 \u0918\u094b\u0932\u094b\u0964 \u0918\u094b\u0932 \u0915\u094b \u091b\u093e\u0928 \u0932\u094b \u0914\u0930 \u091c\u0930\u0942\u0930\u0924 \u0939\u094b \u0924\u094b \u0914\u0930 \u0921\u093f\u0938\u094d\u091f\u093f\u0932\u094d\u0921 \u092a\u093e\u0928\u0940 \u092e\u093f\u0932\u093e\u0915\u0930 100 \u092e\u093f.\u0932\u0940. \u0918\u094b\u0932 \u092c\u0928\u093e \u0932\u094b\u0964 \u0964 \u092f\u0939 \u0927\u094d\u092f\u093e\u0928 \u0930\u0939\u0947 \u0915\u093f \u0918\u094b\u0932 \u0915\u093e \u0930\u0902\u0917 \u0928\u0940\u0932\u093e \u0928 \u0939\u094b\u0928\u0947 \u092a\u093e\u090f\u0964<br />\r\n<br />\r\n<strong>\u0905\u0932\u094d\u0915\u0932\u093e\u0907\u0928 \u0906\u092f\u094b\u0921\u093e\u0907\u0921 \u0938\u094b\u0921\u093f\u092f\u092e \u0918\u094b\u0932&nbsp;</strong><br />\r\n50 \u0917\u094d\u0930\u093e\u092e \u0938\u094b\u0921\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u0911\u0915\u094d\u0938\u093e\u0907\u0921 \u0914\u0930 13.5 \u0917\u094d\u0930\u093e\u092e \u0938\u094b\u0921\u093f\u092f\u092e \u0906\u092f\u094b\u0921\u093e\u0907\u0921 \u092f\u093e 70 \u0917\u094d\u0930\u093e\u092e \u092a\u094b\u091f\u0947\u0936\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u0911\u0915\u094d\u0938\u093e\u0907\u0921 \u0914\u0930 15 \u0917\u094d\u0930\u093e\u092e \u092a\u094b\u091f\u0947\u0936\u094d\u092f\u092e \u0905\u092f\u094b\u0921\u093e\u0907\u0921 \u0915\u094b \u0921\u093f\u0938\u094d\u091f\u093f\u0932\u094d\u0921 \u092a\u093e\u0928\u0940 \u092e\u0947\u0902 \u0918\u0941\u0932\u093e\u0915\u0930 100 \u092e\u093f.\u0932\u0940. \u0918\u094b\u0932 \u092c\u0928\u093e \u0932\u094b\u0964<br />\r\n<br />\r\n<strong>\u0938\u094b\u0921\u093f\u092f\u092e \u0925\u093e\u092f\u094b\u0938\u0932\u094d\u092b\u093c\u093e\u0907\u091f \u0918\u094b\u0932</strong><br />\r\n1.25 \u0917\u094d\u0930\u093e\u092e \u0938\u094b\u0921\u093f\u092f\u092e \u0925\u093e\u092f\u094b\u0938\u0932\u094d\u092b\u093c\u093e\u0907\u091f (Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>5H<sub>2</sub>0) \u0932\u094b \u0914\u0930 \u0909\u0938\u0947 \u0921\u093f\u0938\u094d\u091f\u093f\u0932\u094d\u0921 \u092a\u093e\u0928\u0940 \u092e\u0947\u0902 \u0918\u0941\u0932\u093e\u0915\u0930 100 \u092e\u093f.\u0932\u0940. \u0918\u094b\u0932 \u092c\u0928\u093e \u0932\u094b\u0964 \u0909\u0938\u0947 \u0938\u0941\u0930\u0915\u094d\u0937\u093f\u0924 \u0930\u0916\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0909\u0938\u092e\u0947\u0902 1 \u0917\u094d\u0930\u093e\u092e \u0938\u094b\u0921\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u0911\u0915\u094d\u0938\u093e\u0907\u0921 \u092e\u093f\u0932\u093e \u0926\u094b\u0964&nbsp;<br />\r\n<br />\r\n<strong>\u0938\u094d\u091f\u093e\u0930\u094d\u091a \u0938\u0942\u091a\u0915</strong><br />\r\n2 \u0917\u094d\u0930\u093e\u092e \u0938\u094d\u091f\u093e\u0930\u094d\u091a \u0932\u0947\u0915\u0930 50 \u092e\u093f.\u0932\u0940. \u0917\u0930\u094d\u092e \u0921\u093f\u0938\u094d\u091f\u093f\u0932\u094d\u0921 \u092a\u093e\u0928\u0940 \u092e\u0947\u0902 \u0918\u094b\u0932 \u0926\u094b\u0964 \u0909\u0938\u0947 \u0938\u0941\u0930\u0915\u094d\u0937\u093f\u0924 \u0930\u0916\u0928\u093e \u0939\u0948 \u0924\u094b \u0909\u0938\u092e\u0947\u0902 0.1 \u0917\u094d\u0930\u093e\u092e \u0938\u0948\u0932\u0940\u0938\u093f\u0932\u093f\u0915 \u090f\u0938\u093f\u0921 \u092e\u093f\u0932\u093e \u0926\u094b\u0964<br />\r\n<br />\r\n<br />\r\n<strong>\u095e\u0949\u0938\u094d\u092b\u093c\u094b\u0930\u093f\u0915 \u090f\u0938\u093f\u0921 (90%)</strong><br />\r\n<br />\r\n<br />\r\n<strong>&nbsp;\u0935\u0940\u0921\u093f\u092f\u094b\u200b :&nbsp;\u0938\u093f\u0930\u093f\u0902\u091c \u0915\u093e \u0909\u092a\u092f\u094b\u0917</strong></span></p>\r\n\r\n<div>\r\n<div class=\"video-player-area\" id=\"video-player-599bf80b69602a013fe314a3\">\r\n<div class=\"vidbak\">\r\n<video class=\"video-js vjs-skin-colors-clix vjs-big-play-button center\" controls=\"controls\" data-setup=\"{ &quot;playbackRates&quot;: [0.5, 1, 1.5, 2] }\" height=\"360\" id=\"599bf80b69602a013fe314a3\" width=\"480\"><source codecs=\"avc1.42E01E, mp4a.40.2\" crossorigin=\"anonymous\" preload=\"metadata\" src=\"/media/9/b/e/79af2ec5aa34fb2d7ee792276c8ac3b71f596c814be7607f0a9985d81f57c.mp4\" type=\"video/mp4\" /> <script>\r\n\t\t\tfunction myFunction() { \r\n\t\t\t    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    "content_org": "<h1><span style=\"font-size:36px;\">Teacher Note</span></h1>\r\n<br />\r\n<span style=\"font-size:20px;\">Students like to do experiments. The idea in this chapter is to expose children towards experimentation they can use to get quantitative data about their environment.&nbsp;</span>\r\n\r\n<h3><span style=\"font-size:20px;\">Teachers table as Reagent tables</span></h3>\r\n<br />\r\n<span style=\"font-size:20px;\">1. Reagent table \u2013Teacher\u2019s table could be converted into the reagent table ( the place where reagents are kept in a laboratory). Spread some sheets of newspaper over the table and arrange the reagent bottle in the following order.&nbsp;<br />\r\n<br />\r\nManganous Sulphate, Starch, Sodium Thiosulphate, Alkaline Potassium Iodide and Phosphoric Acid.&nbsp;<br />\r\n<br />\r\nThis set up help you to monitor the student's group while handling the chemicals and students will make less mistake since the chemicals are arranged in the same sequence in which they would be using it while doing the experiment. Keep a plastic bottle also on the table to empty the BOD bottles after doing the experiment.&nbsp;</span>\r\n\r\n<hr />",
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