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| = Session plan = | | = Session plan = |
− | # Congruence – (<nowiki>https://www.geogebra.org/f/n2nstusmmc</nowiki>) | + | # Congruence – (<nowiki>https://www.geogebra.org/f/n2nstusmmc</nowiki>) |
| ## Segment, angle, triangle, quadrilateral, odd shaped figures | | ## Segment, angle, triangle, quadrilateral, odd shaped figures |
− | ## Measures of corresponding sides and angles of congruent polygons will be equal | + | ## Measures of corresponding sides and angles of congruent polygons will be equal |
− | # Similarity - <nowiki>https://www.geogebra.org/f/fprxfwdmy8</nowiki> | + | # Similarity - <nowiki>https://www.geogebra.org/f/fprxfwdmy8</nowiki> |
− | ## Any circle is similar to any other circle. Same holds for Square and Equilateral Triangles <nowiki>https://www.geogebra.org/m/ceapgrs5</nowiki> and <nowiki>https://www.geogebra.org/m/kpww6afy</nowiki> | + | ## Any circle is similar to any other circle. |
| + | ## Same holds for Square - <nowiki>https://www.geogebra.org/m/ceapgrs5</nowiki> |
| + | ## and Equilateral Triangles and <nowiki>https://www.geogebra.org/m/kpww6afy</nowiki> |
| ## Quadrilaterals | | ## Quadrilaterals |
− | ### Two quadrilaterals of the same number of sides are similar, if | + | ### Two quadrilaterals of the same number of sides are similar, if |
− | #### (i) their corresponding angles are equal and | + | #### (i) their corresponding angles are equal and |
− | #### (ii) their corresponding sides are in the same ratio (or proportion) | + | #### (ii) their corresponding sides are in the same ratio (or proportion) |
− | ## Triangle - <nowiki>https://www.geogebra.org/m/mdc43fbt</nowiki> | + | ## Triangle - <nowiki>https://www.geogebra.org/m/mdc43fbt</nowiki> |
− | ### if all angles of one are congruent with the corresponding angles of the second (AAA) | + | ### if all angles of one are congruent with the corresponding angles of the second (AAA) |
− | ### if ratio of three corresponding sides are equal (SSS) | + | ### if the ratio of three corresponding sides are equal (SSS) |
− | # Concept of height of a triangle. <nowiki>https://www.geogebra.org/m/k56qc3hm</nowiki> | + | # Concept of height of a triangle. <nowiki>https://www.geogebra.org/m/k56qc3hm</nowiki> |
− | ## Height of a triangle will be inside the triangle (acute angled triangle), outside the triangle (obtuse angled triangle) and on the side of the triangle (right triangle) | + | ## The height of a triangle will be inside the triangle (acute angled triangle), outside the triangle (obtuse angled triangle) and on the side of the triangle (right triangle) |
− | ## Selection of side as base can change, but area (half * base *height) does not change | + | ## Selection of side as base can change, but area (half * base *height) does not change |
− | # BPT - If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio. | + | # BPT - If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct points, the other two sides are divided in the same ratio. |
− | ## Draw few triangles and check that this is true – visual proof <nowiki>https://www.geogebra.org/m/nctk4smk</nowiki> | + | ## Draw few triangles and check that this is true – visual proof <nowiki>https://www.geogebra.org/m/nctk4smk</nowiki> |
− | ## Logical Proof of BPT - <nowiki>https://www.geogebra.org/m/pjdj65cd</nowiki> | + | ## Logical Proof of BPT - <nowiki>https://www.geogebra.org/m/pjdj65cd</nowiki> |
| | | |
| = Time plan = | | = Time plan = |
− | # Introduction to <nowiki>http://geogebra.org</nowiki> . Enable ‘desktop view and Landscape view on phone – 15 minutes | + | # Introduction to <nowiki>http://geogebra.org</nowiki>. Enable ‘Desktop view' and 'Landscape view' on phone – 15 minutes |
| # Demo and hands-on - Congruence – 15 minutes, Similarity 20 minutes. BPT 20 minutes. Frustum of Cone – 10 minutes | | # Demo and hands-on - Congruence – 15 minutes, Similarity 20 minutes. BPT 20 minutes. Frustum of Cone – 10 minutes |
| # Closing way forward + Google form – 10 minutes. | | # Closing way forward + Google form – 10 minutes. |
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| # Use the file in the sequence of “check boxes” (Tick mark off/ on) | | # Use the file in the sequence of “check boxes” (Tick mark off/ on) |
| # Check box – click on it to ON. Click again to OFF | | # Check box – click on it to ON. Click again to OFF |
− | # When needed, move the “Slider” – Move to increase or reduce value of variable (like audio volume control) | + | # When needed, move the “Slider” – Move to increase or reduce value of variable (like audio volume control) |
| # Uncheck a check box when not needed or to reduce information on the screen | | # Uncheck a check box when not needed or to reduce information on the screen |
| # You can download the file to your own computer, see the steps given in video <nowiki>https://youtu.be/ECFKjQXT6IE</nowiki> (see from 1.40 to 2.00 minutes) | | # You can download the file to your own computer, see the steps given in video <nowiki>https://youtu.be/ECFKjQXT6IE</nowiki> (see from 1.40 to 2.00 minutes) |