{"id":977,"date":"2023-09-27T10:53:04","date_gmt":"2023-09-27T10:53:04","guid":{"rendered":"http:\/\/localhost\/ecole9ja\/?p=977"},"modified":"2023-09-27T10:59:01","modified_gmt":"2023-09-27T10:59:01","slug":"week-1-and-2-jss-2-second-term-basic-technology-lesson-notes","status":"publish","type":"post","link":"https:\/\/ecolebooks.com\/nigeria\/posts\/week-1-and-2-jss-2-second-term-basic-technology-lesson-notes\/","title":{"rendered":"Week 1 and 2 &#8211; Jss 2 Second Term Basic Technology Lesson Notes"},"content":{"rendered":"<p>                                                    Scheme of work for jss2<br \/>\nWeek 1; revision of last term work<br \/>\nWeek 2; quadrilaterals<br \/>\nWeek 3; plane figures[polygon]<br \/>\nWeek 4&amp;5; area of plane figures<br \/>\nWeek 6; wood work machine<br \/>\nWeek 7; metal work machine<br \/>\nWeek 8; care and maintenance of metal work machine<br \/>\nWeek 9; friction<br \/>\nWeek 10; reduction of friction<br \/>\nWeek 11; revision<br \/>\nWeek 12; examination<br \/>\nWeek 1; revision<br \/>\nRescue comprises responsive operations that usually involve the saving of life, or prevention of injury during an incident or dangerous situation.<br \/>\nTools used might include search and rescue dogs, mounted search and rescue horses, helicopters, the &#8220;jaws of life&#8221;, and other hydraulic cutting and spreading tools used to extricate individuals from wrecked vehicles. Rescue operations are sometimes supported by special vehicles such as fire department&#8217;s or EMS heavy rescue vehicle.<br \/>\nOverviewRopes and special devices can reach and remove individuals and animals from difficult locations including:<br \/>\nAir-sea rescueCave rescueCombat search and rescueConfined space rescueMine rescueRope rescueSearch and rescueSki patrolSurface water rescueSwiftwater rescueUrban search and rescueVehicle extricationWildernessRescue operations require a high degree of training and are performed by rescue squads, either independent or part of larger organizations such as fire, police, military, first aid, or ambulance service.<br \/>\nWeek 2; quadrilaterals<br \/>\nIn this tutorial on basic geometry concepts, we cover the types and properties of quadrilaterals: Parallelogram, rectangle, square, rhombus, trapezium.<br \/>\n<strong>Definition:<br \/>\n<\/strong>A quadrilateral is a simple closed figure with four sides.<br \/>\n<strong>Types of quadrilaterals<br \/>\n<\/strong>There are five types of quadrilaterals.<\/p>\n<ul>\n<li>Parallelogram\n<\/li>\n<li>Rectangle\n<\/li>\n<li>Square\n<\/li>\n<li>Rhombus\n<\/li>\n<li>Trapezium\n<\/li>\n<\/ul>\n<p>One common property of all quadrilaterals is that the sum of all their angles equals 360\u00b0.<br \/>\nLet us look into the properties of different quadrilaterals.<br \/>\n<img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and21.png\" alt=\"\"\/><br \/>\n\t\t<strong>Parallelogram<br \/>\n<\/strong><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and22.png\" alt=\"\"\/><\/p>\n<p>\u00a0<strong>Properties of a parallelogram<br \/>\n<\/strong><\/p>\n<ul>\n<li>Opposite sides are parallel and congruent.\n<\/li>\n<li>Opposite angles are congruent.\n<\/li>\n<li>Adjacent angles are supplementary.\n<\/li>\n<li>Diagonals bisect each other and each diagonal divides the parallelogram into two congruent triangles.\n<\/li>\n<li>If one of the angles of a parallelogram is a right angle then all other angles are right and it becomes a rectangle.\n<\/li>\n<\/ul>\n<p><strong>Important formulas of parallelograms<br \/>\n<\/strong><\/p>\n<ul>\n<li>Area = L * H\n<\/li>\n<li>Perimeter = 2(L+B)\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and23.png\" alt=\"\"\/><br \/>\n\t\t<strong>Rectangles<br \/>\n<\/strong><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and24.png\" alt=\"\"\/><br \/>\n\t\t<strong>Properties of a Rectangle<br \/>\n<\/strong><\/p>\n<ul>\n<li>Opposite sides are parallel and congruent.\n<\/li>\n<li>All angles are right.\n<\/li>\n<li>The diagonals are congruent and bisect each other (divide each other equally).\n<\/li>\n<li>Opposite angles formed at the point where diagonals meet are congruent.\n<\/li>\n<li>A rectangle is a special type of parallelogram whose angles are right.\n<\/li>\n<\/ul>\n<p><strong>Important formulas for rectangles<br \/>\n<\/strong><\/p>\n<ul>\n<li>If the length is L and breadth is B, then\n<\/li>\n<\/ul>\n<p>Length of the diagonal of a rectangle = \u221a(L<sup>2<\/sup> + B<sup>2<\/sup>)<\/p>\n<ul>\n<li>Area = L * B\n<\/li>\n<li>Perimeter = 2(L+B)\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and25.png\" alt=\"\"\/><br \/>\n\t\t<strong>Squares<br \/>\n<\/strong><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and26.png\" alt=\"\"\/><br \/>\n\t\t<strong>Properties of a square<br \/>\n<\/strong><\/p>\n<ul>\n<li>All sides and angles are congruent.\n<\/li>\n<li>Opposite sides are parallel to each other.\n<\/li>\n<li>The diagonals are congruent.\n<\/li>\n<li>The diagonals are perpendicular to and bisect each other.\n<\/li>\n<li>A square is a special type of parallelogram whose all angles and sides are equal.\n<\/li>\n<li>Also, a parallelogram becomes a square when the diagonals are equal and right bisectors of each other.\n<\/li>\n<\/ul>\n<p><strong>Important formulas for Squares<br \/>\n<\/strong><\/p>\n<ul>\n<li>If &#8216;L&#8217; is the length of the side of a square then length of the diagonal = L \u221a2.\n<\/li>\n<li>Area = L<sup>2<\/sup>.\n<\/li>\n<li>Perimeter = 4L\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and27.png\" alt=\"\"\/><br \/>\n\t\t<strong>Rhombus<br \/>\n<\/strong><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and28.png\" alt=\"\"\/><br \/>\n\t\t<strong>Properties of a Rhombus<br \/>\n<\/strong><\/p>\n<ul>\n<li>All sides are congruent.\n<\/li>\n<li>Opposite angles are congruent.\n<\/li>\n<li>The diagonals are perpendicular to and bisect each other.\n<\/li>\n<li>Adjacent angles are supplementary (For eg., \u2220A + \u2220B = 180\u00b0).\n<\/li>\n<li>A rhombus is a parallelogram whose diagonals are perpendicular to each other.\n<\/li>\n<\/ul>\n<p><strong>Important formulas for a Rhombus<br \/>\n<\/strong>If a and b are the lengths of the diagonals of a rhombus,<\/p>\n<ul>\n<li>Area = (a* b) \/ 2\n<\/li>\n<li>Perimeter = 4L\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and29.png\" alt=\"\"\/><br \/>\n\t\t<strong>Trapezium<br \/>\n<\/strong><img decoding=\"async\" src=\"https:\/\/ecolebooks.com\/nigeria\/wp-content\/uploads\/9jalessonsimages\/092723_1052_Week1and210.png\" alt=\"\"\/><br \/>\n\t\t<strong>Properties of a Trapezium<br \/>\n<\/strong><\/p>\n<ul>\n<li>The bases of the trapezium are parallel to each other (MN \u2afd OP).\n<\/li>\n<li>No sides, angles and diagonals are congruent.\n<\/li>\n<\/ul>\n<p><strong>Important Formulas for a Trapezium<br \/>\n<\/strong><\/p>\n<ul>\n<li>Area = (1\/2) h (L+L<sub>2<\/sub>)\n<\/li>\n<li>Perimeter = L + L<sub>1<\/sub> + L<sub>2<\/sub> + L<sub>3<\/sub>\n\t\t\t<\/li>\n<\/ul>\n<p><strong>Summary of properties<br \/>\n<\/strong>Summarizing what we have learnt so far for easy reference and remembrance:<\/p>\n<div>\n<table>\n<tbody>\n<tr>\n<td>S.No.<\/td>\n<td>Property<\/td>\n<td>Parallelogram<\/td>\n<td>Rectangle<\/td>\n<td>Rhombus<\/td>\n<td>Square<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>All sides are congruent<\/td>\n<td>\u2715<\/td>\n<td>\u2715<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Opposite sides are parallel and congruent<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>All angles are congruent<\/td>\n<td>\u2715<\/td>\n<td>\u2713<\/td>\n<td>\u2715<\/td>\n<td>\u2713<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Opposite angles are congruent<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Diagonals are congruent<\/td>\n<td>\u2715<\/td>\n<td>\u2713<\/td>\n<td>\u2715<\/td>\n<td>\u2713<\/td>\n<\/tr>\n<tr>\n<td>6<\/td>\n<td>Diagonals are perpendicular<\/td>\n<td>\u2715<\/td>\n<td>\u2715<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<\/tr>\n<tr>\n<td>7<\/td>\n<td>Diagonals bisect each other<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<\/tr>\n<tr>\n<td>8<\/td>\n<td>Adjacent angles are supplementary<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<td>\u2713<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u00a0Assignment<\/p>\n<ol>\n<li>Define quadrilaterals\n<\/li>\n<li>\n<div>Define polygon\n<\/div>\n<p>\u00a0<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Scheme of work for jss2 Week 1; revision of last term work Week 2; quadrilaterals&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,102],"tags":[],"class_list":["post-977","post","type-post","status-publish","format-standard","hentry","category-posts","category-second-term-jss-2-basic-technology"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/comments?post=977"}],"version-history":[{"count":1,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/977\/revisions"}],"predecessor-version":[{"id":978,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/posts\/977\/revisions\/978"}],"wp:attachment":[{"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/media?parent=977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/categories?post=977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecolebooks.com\/nigeria\/wp-json\/wp\/v2\/tags?post=977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}