Friday, November 20, 2015

Tracker BasketBall throw in Thailand!


http://iwant2study.org/ospsg/index.php/interactive-resources/physics/02-newtonian-mechanics/01-kinematics/286-basketballthailandvideo-1447943685

video: Tewarit Yookung Khanmolee
model: lookang
assumptions made:
video fps =230
girl is 1.5 m tall
basketball is 0.27 m diameter

Technique used:

a moving reference frame to help compensate or account for the shaky camera
video detected as 30 fps, i adjusted it until the value of acceleration is roughly -9.81 m/s^2



Thursday, November 19, 2015

web design principles

General Content


  1. Prioritize Simple Content, left to right
  2. Content in small articles with adjustable layout
  3. Add a read more button, cut information overload
  4. On click show content instead of show all 
  5. navigation labels intuitive and not in main content area
  6. link out to new windows instead of embedding
  7. <100 kb image size auto-size like Google has small, medium, large, original 
  8. Avoid small images with no real purpose like decoration
  9. Use CSS2.0 to control template, color,style

General Layout


  1. Use dynamic width to suit mobile devices
  2. small table using % based width not absolute 
  3. Use remove formatting to copy texts
  4. Simple Layout

Reference:

http://iwant2study.org/ospsg/index.php/2-home
http://iwant2study.org/ospsg/index.php/2-home


Wednesday, November 18, 2015

Google Scholar - Loo Kang Wee

http://scholar.google.com.sg/citations?hl=en&user=Tvy7ptIAAAAJ

Updated 18 Nov 2015


User profiles for Loo Kang Wee

Loo Kang Wee

ministry of education singapore
Verified email at moe.gov.sg
Cited by 2




Google Scholar - Loo Kang Wee http://scholar.google.com.sg/citations?hl=en&user=Tvy7ptIAAAAJ


Google Scholar


seems to be able to add your articles into scholar and tag to your account.
Google Scholar - Loo Kang Wee http://scholar.google.com.sg/citations?hl=en&user=Tvy7ptIAAAAJ
Cool!!
Loo Kang Wee 
ministry of education singapore 
computer models - physics education - easy java simulation - open source physics  
Verified email at moe.gov.sg 
My profile is public 
 
Homepage 
Citation indices
AllSince 2007
Citations11
h-index11
i10-index00
Citations to my articles
Citations to my articles
Select: 1-4

Title / AuthorCited byYear
Learning with multiple representations: an example of a revision lesson in mechanics
D Wong, PP Sng, EH Ng, LK Wee
Physics Education 46 (2), 178
2
2011
Using Tracker as a pedagogical tool for understanding projectile motion
LK Wee, C Chew, GH Goh, S Tan, TL Lee
Physics Education 47 (4), 448


2012
Physics by Inquiry with Simulations
LK Wee, TL Lee, GH Goh
3rd International Conference on Teaching and Learning with Technology, iCTLT ...


2012
Physics Educators as Designers of Simulation Using EJS Part 2
LK Wee
American Association of Physics Teachers National Meeting Conference: 2012 ...


2012
Physics by Inquiry with Simulations Design for Learning
LK Wee, TL Lee, GH Goh
The Academy Symposium, 34


2011
Workshop Concurrent 4.9 Workshop - Innovation in Science Education Open Source Physics – Tracker Video Analysis and Modeling Tool
LK Wee, TL Lee, C Chew
1st Science Teacher Conference, 9


2009
Physics Educators as Designers of Simulation using Easy Java Simulation.
LK Wee
American Association of Physics Teachers National Meeting Conference: 2010 ...


2009
Effectiveness of Computer Laboratory Based E-Learning Instructional Program on Addressing Misconceptions in Projectile Motion
LK Wee
National Institute of Education, NIE-NTU,Singapore


2007
Leveraging on Easy Java Simulation tool and open source computer simulation library to create interactive digital media for mass customization of high school physics curriculum
LK Wee, WK Mak
3rd Redesigning Pedagogy International Conference http://conference.nie.edu ...


2009
Video Analysis and Modeling Tool for Physics Education: A workshop for Redesigning Pedagogy
LK Wee, TL Lee
4th Redesigning Pedagogy International Conference, 1,15


2011
One-dimensional collision carts computer model and its design ideas for productive experiential learning
LK Wee
Physics Education 47 (3), 301


2012


added manually, what is the impact?
want:
  •  take URL of the paper

Title / AuthorCited byYear
Learning with multiple representations: an example of a revision lesson in mechanics
D Wong, PP Sng, EH Ng, LK Wee
Physics Education 46 (2), 178
1
2011
Physics by Inquiry with Simulations
LK Wee, TL Lee, GH Goh
3rd International Conference on Teaching and Learning with Technology, iCTLT ...


2012
Physics Educators as Designers of Simulation Using EJS Part 2
LK Wee
American Association of Physics Teachers National Meeting Conference: 2012 ...


2012
Physics by Inquiry with Simulations Design for Learning
LK Wee, TL Lee, GH Goh
The Academy Symposium, 34


2011
Workshop Concurrent 4.9 Workshop - Innovation in Science Education Open Source Physics – Tracker Video Analysis and Modeling Tool
LK Wee, TL Lee, C Chew
1st Science Teacher Conference, 9


2009
Physics Educators as Designers of Simulation using Easy Java Simulation.
LK Wee
American Association of Physics Teachers National Meeting Conference: 2010 ...


2009
Effectiveness of Computer Laboratory Based E-Learning Instructional Program on Addressing Misconceptions in Projectile Motion
LK Wee
National Institute of Education, NIE-NTU,Singapore


2007
Leveraging on Easy Java Simulation tool and open source computer simulation library to create interactive digital media for mass customization of high school physics curriculum
LK Wee, WK Mak
3rd Redesigning Pedagogy International Conference http://conference.nie.edu ...


2009
Video Analysis and Modeling Tool for Physics Education: A workshop for Redesigning Pedagogy
LK Wee, TL Lee
4th Redesigning Pedagogy International Conference, 1,15


2011
One-dimensional collision carts computer model and its design ideas for productive experiential learning
LK Wee
Physics Education 47 (3), 301


2012

1-4
Dates and citation counts are estimated and are determined automatically by a computer program.
©2012 Google - About Google Scholar - All About Google - Provide feedback - My Citations

Ejs Open Source Circular Loop Vertical Motion java applet

Ejs Open Source Circular Loop Vertical Motion java applet

Updated 18 Nov 2015 #html5 #javascript
http://iwant2study.org/ospsg/index.php/interactive-resources/physics/02-newtonian-mechanics/05-circle/282-coaster96wee



Updated: 07 March 2014


Ejs Open Source Circular Loop Vertical Motion java applet with mass point align on the track for ease of calculation for minimum speed of  $ v = 2.5 r $ for completing circular motion reduce $ \delta t =0.01 $ for stepping almost to top of the loop.
http://weelookang.blogspot.com/2011/09/ejs-open-source-circular-loop-vertical.html
collision track https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejs_model_coaster96wee.jar
with top 90 degree https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejs_model_coaster9wee.jar
with linear track https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejs_model_coaster7wee.jar
theoretical H https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejs_model_coaster5wee.jar
https://dl.dropboxusercontent.com/u/44365627/lookangEJSS/export/ejs_model_coaster3wee.jar
https://dl.dropbox.com/u/44365627/lookangEJSworkspace/export/ejs_users_sgeducation_lookang_coaster3wee.jar
author: Fu-Kwun Hwang and lookang
s


Ejs Open Source Circular Loop Vertical Motion java applet with end of a motion show as impact with ground after free fall
http://weelookang.blogspot.com/2011/09/ejs-open-source-circular-loop-vertical.html
https://dl.dropboxusercontent.com/u/44365627/lookangEJSS/export/ejs_model_coaster3wee.jar
https://dl.dropbox.com/u/44365627/lookangEJSworkspace/export/ejs_users_sgeducation_lookang_coaster3wee.jar
author: Fu-Kwun Hwang and lookang



Full screen applet
kindly hosted in NTNUJAVA Virtual Physics Laboratory by Professor Fu-Kwun Hwang
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2230.0
alternatively, go direct to http://www.phy.ntnu.edu.tw/ntnujava/index.php?board=28.0
Collaborative Community of EJS (Moderator: lookang) and register , login and download all of them for free :) This work is licensed under a Creative Commons Attribution 3.0 Singapore License
Author: Fu-Kwun Hwang and lookang



other circular loop vertical motion
Particle Motion On A Vertical Elliptical Loop Model written by Wolfgang Christian http://www.compadre.org/OSP/items/detail.cfm?ID=11234


changes

add energy bars that are exactly in sync in y with applet
hide the text and energy bars originally there by Fu-Kwun Hwang
added usual control at the bottom panel
add stagetext to allow make sense of motion
if(stage==0){ // moving in circular motion on the uptrack
else if(stage==1){ // moving in circular motion on the circletrack
else if(stage==2 ){ // moving in linear motion on the straight bottom track
else if(stage==3){//free fall

bug:
found a bug in nf in stage 1 the number did not make sense

Physics of Roller Coaster


Simply speaking, a roller coaster is a machine that uses gravity and inertia to send a train of cars along a winding track.[1] This combination of gravity and inertia, give the body certain sensations as the coaster moves up, down, and around the track. The forces experienced by the rider are constantly changing, leading to feelings of joy in some riders and nausea in others. The basic principles of roller coaster mechanics have been known since 1865, and since then roller coasters have become a popular diversion.

Centripetal acceleration

The track's curve track prevents the object following the straight line it otherwise would, by applying a force on it (via its outside edges) towards the center of the circle, forcing it to travel in a curved path instead. This centripetal (center seeking) acceleration actually points toward the center of the circle, but a roller coaster rider experiences it as contact force, a force pushing them toward the outer edge of the car. The following equation expresses centripetal acceleration (to make it centripetal force simply multiply by the mass):

$ a_{r} = \frac {v^{2}}{r} $

where $ a_{r} $ is centripetal acceleration, $ v $ is velocity and $ r $ is the radius of the circular path. This shows that two roller coaster cars entering two loops of different size at the same speed will experience different acceleration forces: the car in the tighter loop will feel greater acceleration while the car in the wider loop will feel less acceleration.


Circular Loop Explained!


H =3.5r, motion completes circular loop


H =3.5r, motion completes circular loop

H =2.5r, motion completes circular loop just enough centripetal acceleration at the top to complete loop

H =2.45r. , motion does circular loop until $ \theta $ in upper right quadrant to go free fall and hit circular track again at upper left quadrant and motion continues until exit horizontal straight track on the right

H =2.0r. , motion does circular loop until $ \theta $ in upper right quadrant to go free fall and hit circular track again at lower left quadrant and motion continues until exit horizontal straight track on the right

H =1.5r. , motion does circular loop until $ \theta $ in upper right quadrant to go free fall and hit circular track again at lower right quadrant and motion oscillates between the first circular track R and part of the circular track r

H =r. , motion does circular loop oscillation between the first circular track R and part of the circular track r

H =0.5r. , motion does circular loop oscillation between the first circular track R and part of the circular track r





showing the centripetal acceleration and tangential acceleration with radius of loop r = 3.33m, height of release H = 2.5r = 8.325m. bigger r loop will feel less acceleration ac
showing the centripetal acceleration and tangential acceleration with radius of loop r = 2.50m, height of release H = 3.33r = 8.325m. smaller r loop will feel greater acceleration ac

What is the contact force?

when the mass travels down the 1st to the loop at  at the bottom position,
the contact force minus the weight is the nett force that results in a centripetal acceleration thus a circular motion is possible

when the mass travels from the circular loop and onto the straight track, 2nd time at the bottom position,
the contact force minus the weight is the nett force that results in a zero acceleration thus straight line motion is possible

Shared on wikipedia

https://en.wikipedia.org/wiki/Physics_of_roller_coasters#Centripetal_acceleration
descDateNameThumbnailSizeUserDescriptionCurrent version
07:56, 10 March 2014CoasterH=2.5raccelerationlowr=2.5.gif(file)367 KBLookangUser created page with UploadWizardYes
06:57, 10 March 2014CoasterH=2.5r.gif (file)583 KBLookanglow resYes
06:50, 10 March 2014CoasterH=2.5rforces.gif (file)614 KBLookanglow res full viewYes

Approach 3: Translational Research, Innovation & Scaling through Open Educational Resources, OER.

Approach 3: Translational Research, Innovation & Scaling through Open Educational Resources, OER.



Open Educational Resources, OER@SG
http://iwant2study.org/ospsg/index.php/interactive-resources/physics

http://iwant2study.org/ospsg/index.php/interactive-resources/physics


Approach 3: Translational Research, Innovation & Scaling through Open Educational Resources, OER.

Translational Research, Innovation and Scaling (TRIS) in MasterPlan 4 in Education ICT information and communication technology mp4 seeks to nurture a culture of innovation and reflective practice across schools. To do so, it is important to engage schools and teachers in experimentation and innovation efforts such as OER@SG . This will allow teachers to engage in professional discourse (through discussions on each OER@SG article), learn, reflect and explore together, deepen their practice and improve their craft. Through OER@SG translational research, successful evidence-based practices (see OER@SG research page) will identified and scaled up to benefit other schools in the system.

The strategies to support, drive and encourage experimentation and innovation in schools are to:

  1. Scan for educational technology-related issues, promising applications and themes (see OER@SG pages) of relevance to Singapore education system to inform stakeholders.
  2. Translate research findings into classroom practices, lesson resources and learning design principles via rapid prototyping; and
  3. Spread successful practices developed through the innovation projects such as OER@SG , by making them available for all schools to adopt and adapt (thus harnessing OER is one way to achieve this).



Tuesday, November 17, 2015

Monday, November 16, 2015

Faraday lab by phet

Awesome stuff from #phetsims with full screen added

http://iwant2study.org/ospsg/index.php/interactive-resources/physics/05-electricity-and-magnetism/09-electromagnetic-induction/264-faraday-lab-by-phet

Thursday, November 12, 2015

SISTC2015 Growing scientists via video analysis


Accept! thanks to +Ning Hwee Tiang 

Dear Colleague,
Growing scientists via video analysis
https://www.sistc.sg/


Title of submission: Growing scientists via video analysis

Venue: Faraday Lab, Science Centre
Time: 1545 – 1715

Thank you for your abstract submission. We are pleased to inform you that your submission has been accepted as a Paper Presentation for the 2015 Singapore International Science Teachers’ Conference (SISTC). The Conference will be held in Science Centre Singapore from 12-13 November 2015.

Here are some comments from the reviewers for your consideration, please:

In your paper presentation, please share evidence on how students improved their sense-making and relating to real life motion, and how they behaved like scientists.

The main presenter and/or co-presenters are to register for the conference via the conference website before 15 September 2015 to enjoy early-bird rates. The conference registration fee covers daily breakfast, lunch, tea breaks and conference materials.

Please email your Presentation slides and full paper (if any) to secretariat@sistc.sg by 30 October 2015 (Friday). This will facilitate the easy distribution of presentations and related materials to other participants for the purpose of rich professional sharing.

We look forward to meeting you in the Science Centre Singapore on 12 and 13 November 2015.

With best wishes,
The Organizing Committee of SISTC 2015


Presenters
Select:
Mdm
First Name:
ning
Last Name:
hwee tiang
Designation:
teacher
Institution/School/Branch:
NJC
Tel (O):

Tel (HP):

Email:

Co-Presenters
Name:
wee loo kang
Institution/School/Branch:
ETD
Name:
Institution/School/Branch:
Name:
Institution/School/Branch:
Strand
:
:
Science Teaching and Learning
Presentation Format
:
:
Paper Presentation (20-25 minutes of presentation and 10-15 minutes of Q&A)
Title:
Growing scientists via video analysis
Keywords (provide 5 keywords):
modelling, video analysis, pedagogical, technology
Abstract: (limit to 200 words):
This sharing highlights how the Tracker Video Analysis and Modeling Tool is used as a pedagogical tool in the effective learning and teaching of Kinematics to grade 8 students in Singapore classroom. Implemented with an inquiry-based approach, lessons facilitated varied opportunities involving students in active learning - obtain real data , engage in evidence-based discussions, make inferences and create model to explain how the physical world work, in their technology-enabled environment. Students improved in sense-making and relating to real life motion via multiple representations.
Our work aims to encourage students to behave like scientists, aligned with the K12 science education framework. And further discuss the use of simulation to aid development of students’ conceptual understanding.
File Upload:
AV Equipments:
This email was built and sent using Visual Form Builder.
https://www.sistc.sg/

thanks +Kim Kia Tan bro for your leadership!

 +Leong Tze Kwang +Ning Hwee Tiang


Singapore science teacher conference 2015 11-13 November Science Centre
Singapore science teacher conference 2015 11-13 November Science Centre https://www.sistc.sg/