Difference between revisions of "District Maths Teachers Workshop Feb 21"

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[https://karnatakaeducation.org.in/KOER/index.php/%E0%B2%9C%E0%B2%BF%E0%B2%B2%E0%B3%8D%E0%B2%B2%E0%B2%BE_%E0%B2%97%E0%B2%A3%E0%B2%BF%E0%B2%A4_%E0%B2%B6%E0%B2%BF%E0%B2%95%E0%B3%8D%E0%B2%B7%E0%B2%95%E0%B2%B0_%E0%B2%95%E0%B2%BE%E0%B2%B0%E0%B3%8D%E0%B2%AF%E0%B2%BE%E0%B2%97%E0%B2%BE%E0%B2%B0_%E0%B2%AB%E0%B3%86%E0%B2%AC%E0%B3%8D%E0%B2%B0%E0%B2%B5%E0%B2%B0%E0%B2%BF_21?veaction=edit ಕನ್ನಡದಲ್ಲಿ ನೋಡಿ]
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Bengaluru South DIET Mathematics online course - Demonstration and hands-on Geogebra to teach BPT and Frustum
 
Bengaluru South DIET Mathematics online course - Demonstration and hands-on Geogebra to teach BPT and Frustum
  
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=== Session plan ===
 
=== Session plan ===
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# Congruence – (<nowiki>https://geogebra.org/f/n2nstusmmc</nowiki>)
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# Congruence  
 
## 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
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# Similarity - <nowiki>https://geogebra.org/f/fprxfwdmy8</nowiki>
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# Similarity  
 
## Any circle is similar to any other circle.  
 
## Any circle is similar to any other circle.  
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## Same holds for Square - <nowiki>https://geogebra.org/m/ceapgrs5</nowiki>
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## Same holds for Square - [https://www.geogebra.org/m/ceapgrs5 https://geogebra.org/m/ceapgrs5]
−
## and Equilateral Triangles  and <nowiki>https://geogebra.org/m/kpww6afy</nowiki>
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## and Equilateral Triangles  and [https://www.geogebra.org/m/kpww6afy https://geogebra.org/m/kpww6afy]
 
## 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://geogebra.org/m/mdc43fbt</nowiki>
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## Triangle - [https://www.geogebra.org/m/mdc43fbt https://geogebra.org/m/mdc43fbt]
 
### 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 the 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://geogebra.org/m/k56qc3hm</nowiki>
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# Concept of height of a triangle. [https://www.geogebra.org/m/k56qc3hm https://geogebra.org/m/k56qc3hm]
 
## 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)
 
## 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://geogebra.org/m/nctk4smk</nowiki>
 
## Draw few triangles and check that  this is true – visual proof  <nowiki>https://geogebra.org/m/nctk4smk</nowiki>
−
## Logical Proof of BPT - <nowiki>https://geogebra.org/m/pjdj65cd</nowiki>
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## Logical Proof of BPT - [https://www.geogebra.org/m/pjdj65cd https://geogebra.org/m/pjdj65cd]
  
 
=== 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
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# Closing  way forward + [https://teacher-network.in/limesurvey/index.php/575443?newtest=Y&lang=en Google form] – 10 minutes.
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# Closing  way forward + [https://teacher-network.in/limesurvey/index.php/575443?lang=en Google form] – 10 minutes.
  
 
=== General Instructions for using the files ===
 
=== General Instructions for using the files ===
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# 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)
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# You can download the file to your own computer, see the steps given in video [https://www.youtube.com/watch?v=ECFKjQXT6IE&feature=youtu.be https://youtu.be/ECFKjQXT6IE] (see from 1.40 to 2.00 minutes)
 
# You can install Geogebra on your computer having Microsoft Windows and also on your android phone, through Google play (Geometry app)
 
# You can install Geogebra on your computer having Microsoft Windows and also on your android phone, through Google play (Geometry app)
 
# You can show in your class using the Geogebra  on your computer, or if you have connectivity, directly from the website, connecting to projector.
 
# You can show in your class using the Geogebra  on your computer, or if you have connectivity, directly from the website, connecting to projector.
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|[https://www.geogebra.org/m/pjdj65cd Open the Geogebra file BPT 1 – Logical proof]
 
|[https://www.geogebra.org/m/pjdj65cd Open the Geogebra file BPT 1 – Logical proof]
 
|[https://www.geogebra.org/m/pjdj65cd https://geogebra.org/m/pjdj65cd]
 
|[https://www.geogebra.org/m/pjdj65cd https://geogebra.org/m/pjdj65cd]
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|-
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|[https://www.geogebra.org/m/ujr94b2p Surface Area and Volume of a Frustum from a Cone]
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|https://www.geogebra.org/m/ujr94b2p
 
|}
 
|}
 
'''To learn more about Geogebra visit the [https://teacher-network.in/OER/index.php/Learn_Geogebra Learn Geogebra] page'''
 
'''To learn more about Geogebra visit the [https://teacher-network.in/OER/index.php/Learn_Geogebra Learn Geogebra] page'''
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To Download this page [https://karnatakaeducation.org.in/KOER/en/images/a/a7/District_Maths_Teachers_Workshop_Feb_21_-_Karnataka_Open_Educational_Resources.pdf click here]
 
[[Category:TCOL Phase 3]]
 
[[Category:TCOL Phase 3]]
 
[[Category:Mathematics]]
 
[[Category:Mathematics]]

Latest revision as of 09:39, 20 February 2021

ಕನ್ನಡದಲ್ಲಿ ನೋಡಿ

Bengaluru South DIET Mathematics online course - Demonstration and hands-on Geogebra to teach BPT and Frustum

Objectives of workshop

  1. Familiarity with idea of congruence, similarity and similar triangles
  2. Visualizing 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. Logical proof of BPT
  3. Visualizing area of Frustum of a Cone (3D)

Improve display of Geogebra on your phone

  1. Use in landscape mode
  2. Full screen our presentation
  3. Desktop option on phone
  4. If in difficulty, simply refresh the screen.

Session plan

  1. Congruence
    1. Segment, angle, triangle, quadrilateral, odd shaped figures
    2. Measures of corresponding sides and angles of congruent polygons will be equal
  2. Similarity
    1. Any circle is similar to any other circle.
    2. Same holds for Square - https://geogebra.org/m/ceapgrs5
    3. and Equilateral Triangles and https://geogebra.org/m/kpww6afy
    4. Quadrilaterals
      1. Two quadrilaterals of the same number of sides are similar, if
        1. (i) their corresponding angles are equal and
        2. (ii) their corresponding sides are in the same ratio (or proportion)
    5. Triangle - https://geogebra.org/m/mdc43fbt
      1. if all angles of one are congruent with the corresponding angles of the second (AAA)
      2. if the ratio of three corresponding sides are equal (SSS)
  3. Concept of height of a triangle. https://geogebra.org/m/k56qc3hm
    1. 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)
    2. Selection of side as base can change, but area (half * base *height) does not change
  4. 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.
    1. Draw few triangles and check that this is true – visual proof https://geogebra.org/m/nctk4smk
    2. Logical Proof of BPT - https://geogebra.org/m/pjdj65cd

Time plan

  1. Introduction to http://geogebra.org. Enable ‘Desktop view' and 'Landscape view' on phone – 15 minutes
  2. Demo and hands-on - Congruence – 15 minutes, Similarity 20 minutes. BPT 20 minutes. Frustum of Cone – 10 minutes
  3. Closing way forward + Google form – 10 minutes.

General Instructions for using the files

  1. Open Geogebra.org and login with id Ganithageogebra, password - geogebra123
  2. You can click on the link to open the file (or folder) on your computer or phone with Internet connectivity
  3. You can move the objects to coincide with the other object, by selecting the object and using ‘drag and drop’ of your mouse/cursor.
  4. You can also move the object by move the red point and rotating with the yellow point on an object.
  5. Practice drag and drop using mouse cursor on the computer and your finger on your phone.
  6. Use the file in the sequence of “check boxes” (Tick mark off/ on)
  7. Check box – click on it to ON. Click again to OFF
  8. When needed, move the “Slider” – Move to increase or reduce value of variable (like audio volume control)
  9. Uncheck a check-box when not needed or to reduce information on the screen
  10. You can download the file to your own computer, see the steps given in video https://youtu.be/ECFKjQXT6IE (see from 1.40 to 2.00 minutes)
  11. You can install Geogebra on your computer having Microsoft Windows and also on your android phone, through Google play (Geometry app)
  12. You can show in your class using the Geogebra on your computer, or if you have connectivity, directly from the website, connecting to projector.
  13. Students can also see and play with these files on their own phone or using the computer lab.

Access Geogebra resources

You can open the link in the table below on your computer or your phone

Particulars Link
Connect to Internet - https://Geogebra.org

Sign in with user id - Ganithageogebra

Password → geogebra123

https://Geogebra.org
Open the Geogebra file Congruence 1 (3 sets) https://geogebra.org/m/xk6upuuu
Open the Geogebra file Congruence 2 (5 sets) https://geogebra.org/m/dyydtqex
Open the Geogebra file Congruence 3 (Changing length) https://geogebra.org/m/tsxucse8
Open the Geogebra file Similarity 1 (Circles) https://geogebra.org/m/ceapgrs5
Open the Geogebra file Similarity 2 (Squares) https://geogebra.org/m/kpww6afy
Open the Geogebra file Similarity 3 (Rectangles) https://geogebra.org/m/jn8j4yut
Open the Geogebra file Similarity 4 (Equilateral Triangles) https://geogebra.org/m/kgrsaazu
Open the Geogebra file Similarity 5 (Generic Triangles) https://geogebra.org/m/mdc43fbt
Open the Geogebra file BPT 1 – Altitude of a triangle https://geogebra.org/m/k56qc3hm
Open the Geogebra file BPT 1 – Visual proof https://geogebra.org/m/nctk4smk
Open the Geogebra file BPT 1 – Logical proof https://geogebra.org/m/pjdj65cd
Surface Area and Volume of a Frustum from a Cone https://www.geogebra.org/m/ujr94b2p

To learn more about Geogebra visit the Learn Geogebra page

To Download this page click here

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