Tuesday, June 30, 2015

5th Singapore International Science Challenge SISC

promised the PPTX



5th Singapore International Science Challenge SISC http://sisc.sg/

5th Singapore International Science Challenge SISC http://sisc.sg/
A4: CSI and B1 Singapore OSP Digital Library

5th Singapore International Science Challenge SISC http://sisc.sg/
C1, C2, C3 and C4


5th Singapore International Science Challenge SISC http://sisc.sg/
A4: CSI and B1 Singapore OSP Digital Library

5th Singapore International Science Challenge SISC http://sisc.sg/
B1 Singapore OSP Digital Library

Thanks to Bee Chan for inviting me.

NJC will be organising the 5th Singapore International Science Challenge SISC from 29 Jun to 3 Jul.While the students are participating in the Challenge, there is a parallel programme for the overseas teachers as well as local teachers from the South Zone as well as from participating schools.

We will like to invite you to share your work with the teachers in one of the concurrent sessions. We are open to the format of the sharing (talk, workshop. demo etc) as well as to the topic. The session could also end with an invitation to join you in testing/ expanding the current pool of resources.

Date: 30 Jun
Concurrent Session One 10:40am to 11:30am
Concurrent Session Two   11:30pm to 12:40pm
Concurrent Session Three   1:30pm to 2:30pm
Venue :NJC
submission

Title: Singapore OSP Digital Library 

Abstract

This talk shares the Open Educational Digital Library (Wee, 2014) http://iwant2study.org/lookangejss/ for the 2 projects in Open Source Physics (Wee, 2013; Wee, Lim, & Lye, 2014) 1) Easy Java/JavaScript Simulations, (old name EJS, new EjsS) Modeling Tool and 2) Tracker video analysis and modeling tool (Brown, 2012; Brown & Cox, 2009; Hockicko & Žilina, 2012). I also hope to share the “developing mathematics models pedagogical approach” in EjsS and Tracker.

I hope to inspire more educators to create interactive and open educational resources and network with like minded educators.

My latest research prototypes are epub3 chapters for Simple Harmonic Motion and Gravity for the A level Physics syllabus for supporting any schools for the benefit of all.
  1. Dropbox links here http://weelookang.blogspot.sg/2015/05/20th-international-conference-on.html, direct links:
  2. the EjsS Singapore Digital Library http://iwant2study.org/lookangejss/ and 
  3. Apple iBook Store. 

Reference:

  1. Brown, Douglas. (2012). Tracker Free Video Analysis and Modeling Tool for Physics Education. from http://www.cabrillo.edu/~dbrown/tracker/
  2. Brown, Douglas, & Cox, Anne J. (2009). Innovative Uses of Video Analysis. The Physics Teacher, 47(3), 145-150. doi: 10.1119/1.3081296 
  3. Hockicko, P., & Žilina, S. (2012). Attractiveness of Learning Physics by Means of Video Analysis and Modeling Tools. Physics and Engineering, 23, 26. 
  4. Wee, Loo Kang. (2013). Open Source Physics i in Practice arXiv preprint arXiv:1308.2614 (Vol. 1, pp. 56-63). Singapore: Ministry of Education, singapore. 
  5. Wee, Loo Kang. (2014). Open Educational Resources from Performance Task using Video Analysis and Modeling-Tracker and K12 science education framework. Paper presented at the 8th Joint Meeting of Chinese Physicists Worldwide (OCPA8) Nanyang Technological University, Singapore. http://arxiv-web3.library.cornell.edu/pdf/1408.5992v1

Requirement

Laptop with 2 software
Tracker https://www.cabrillo.edu/~dbrown/tracker/
EJSS http://www.um.es/fem/EjsWiki/Download/Download?action=downloadman&upname=EJS_5.1_150504.zip
please test it can run?
thanks!



http://iwant2study.org/lookangejss/02_newtonianmechanics_2kinematics/ejss_model_kinematics/kinematics_Simulation.xhtml

http://iwant2study.org/lookangejss/02_newtonianmechanics_2kinematics/ejss_model_kinematics/kinematics_Simulation.xhtml

http://iwant2study.org/lookangejss/02_newtonianmechanics_2kinematics/ejss_model_kinematics/kinematics_Simulation.xhtml

http://iwant2study.org/lookangejss/02_newtonianmechanics_2kinematics/ejss_model_kinematics/kinematics_Simulation.xhtml

http://iwant2study.org/lookangejss/epub3/20150625gravity.epub
http://iwant2study.org/lookangejss/epub3/20150625shm.epub

https://itunes.apple.com/us/book/gravity-advanced-level-gce/id1001442379?mt=11
https://itunes.apple.com/us/book/simple-harmonic-motion/id967139041?mt=11

https://play.google.com/store/books/details/Loo_Kang_Lawrence_Wee_Gravity_Advanced_Level_Physi?id=LS3_CQAAQBAJ
https://play.google.com/store/books/details/Loo_Kang_Lawrence_Wee_Simple_Harmonic_Motion?id=lqGiBgAAQBAJ

Add caption


Friday, June 26, 2015

EL001- eduLab Presentation at EC meeting

EL001- eduLab Presentation at EC meeting
five-minute presentation to the eduLab Evaluation Committee (EC)
Date: Monday, 29 June 2015
Time: 2.10pm
Venue: Training Room 29, Block C, Level 4, Academy of Singapore Teachers, 2, Malan Road, Singapore 109433
PPTX:

our project

question

findings 1: 

findings 2: 

6 simulation design principles

15 implementation principles

yes, we did find evidences in all 5+4=9 schools where students self reported enriched learning, and we did it with less than 40K.

EL017 - eduLab Presentation at EC meeting

EL017 - eduLab Presentation at EC meeting

five-minute presentation to the eduLab Evaluation Committee (EC)

Date: Monday, 29 June 2015
Time: 4.30pm
Venue: Training Room 29, Block C, Level 4, Academy of Singapore Teachers, 2, Malan Road, Singapore 109433

EL017 - eduLab Becoming Scientists through Video Analysis
first slide captures to boundary of our approach to becoming like scientists through progressive mathematically dynamics particle modeling with fx = if(t<0.8, 0.965*2,0).

slide 2 captures the framework and technology tool used 

slide 3 suggests updating the inquiry based learning framework with technology-computer practice 2 use models and practice 5 computational and mathematical thinking 

slide 4 technology tool Tracker is free, content created can be licensed creative commons attribution, learning community growth etc.

slide 5 go the extra mile to scale up this practice, setting up a Singapore digital library

slide 6 open journal papers published, demonstrates again our single minded efforts to scale up practice
http://iopscience.iop.org/0031-9120/50/4/436/
&
http://pubs.sciepub.com/education/3/2/13/

slide 7 workshops conducted by teacher champions in our group.

Monday, June 22, 2015

Using Tracker to understand ‘toss up’ and free fall motion: a case study

Using Tracker to understand ‘toss up’ and free fall motion: a case study

Great News!

Our team of Singapore teachers have managed to published an OPEN ACCESS Physics Education journal article.

I would like to thank the following people for their significant contributions.

  1. Kim Kia for co-designing the worksheet and for demonstrating leadership in this eduLab project, for which the N=123 students have benefited from the Tracker video analysis learning task. 
  2. Tze Kwang for advances the progressive modeling pedagogy in Tracker and overseeing the curriculum and technology aspects of the eduLab project.
  3. Ching for analysing the pre-pro test scores and making sense of the data. 


Do share this and its supplementary curriculum materials for the benefit of all, licensed creative commons attribution.
Using Tracker to understand ‘toss up’ and free fall motion: a case studyhttp://iopscience.iop.org/0031-9120/50/4/436/pdf/0031-9120_50_4_436.pdf

Tuesday, June 16, 2015

Wide open spaces by valuescolleges.con

This is an interesting summary of open education and things coming. I agree with this idea of wide open spaces as the main content for education. Just look at the success of Wikipedia! It is definitely WOS.
Pros and Cons of Open Education
Source: ValueColleges.com
“Wide Open Spaces: the Pros and Cons of Open Education.




I came across some of your blog posts and thought you’d be interested in this infographic about open education we recently published on Value Colleges:
Thank you,
Alibina Burn

Description of IG: - Open education is defined as, “the institutional practices and initiatives that broaden access to learning and training through formal education systems”. The two main systems of open education is Open Educational Resources and Massively Open Online Courses. Learn just how hugely open education is catching on. The pros of open education lie with it being more iterative and interactive with online communities, live feedback, student services and more. Regardless of educational background and history, only about 4% of students actually complete an entire MOOC. In the future there will be better ways to identify students and enhance the instructional quality of the programs. 75 percent of students said they enrolled in a MOOC because it was free and nearly half said they would take another course if it cost a small amount, but only 18 percent were willing to pay a larger sum. University presidents have different views on open education, most agreeing that it can foster creative pedagogical studies.

How to get more out of Wireless@SGx

How to get more out of Wireless@SGx?

Not many people know about the configuration for Wireless@SGx, as the Wireless@SG always requires users to sign-in which can be a little bit troublesome.


Thus, Wireless@SGx is the solution. this Wifi network allows users to key in the login id and password provided you also set the other setting required correctly.


For Android users you are in luck, the following screenshots provides step-by-step.




  1. Connect to Wireless@SGx via Wi-Fi icon
  2. should be Wireless@SGx
  3. Select connect to Wireless@SGx
  4. EAP Method = PEAP by default, Phase 2 authentication = MSCHAPV2
  5. Identity = your_own_unique_id@singtel and Password = your_ownXXXXXXXXXXX
  6. Now you are connected! 




Monday, June 15, 2015

Featured in GIREP Newletter 56_2015 page 10

Featured in GIREP stands for
Groupe International de Recherche sur l'Enseignement de la Physique«
International Research Group on Physics TeachingNewletter 56_2015 page 10

Thanks to #GIREP

http://iwant2study.org/lookangejss/
teacher's performance of learning as simulations that can be run using just a internet browser, on computers, laptops. tablets and iOS and Android handphones. http://iwant2study.org/lookangejss/00workshop/
the actual PDF can be downloaded here
What's going on in Singapore? Greeting from Europe!
https://girep.org/newsletters/newsletter_2015_05.pdf

Downloads:


  1. actual GIREP newsletter 56_ 2015(1).pdf can be downloaded here
  2. GIREP President letter to members May2015.pdf
  3. Letter10_GIREP_representatives_June15.docx



i in Practice MOE publications

These PDF make great resource for scholars, visitors and school teachers, leaders etc during #ictlt2016.
In order for me to share such Ministry of Education Technology documents, they would have to be open access, no login, no password. enjoy!

Those in yellow highlights are by me :) and only time can tell how evergreen these ICT Information, Communication and Technology practices.

http://ictconnection.moe.edu.sg/publications/i-in-practice

  1. Volume 1 Full PDF:i in Practice.pdf
    1. 10’ CMT_PG7-11_lr.pdf
    2. 1747_I_InPractice 2014_lr.pdf
    3. Automated Marking Tool for English Essays_PG12-16_lr.pdf
    4. Collaborative Science Inquiry_PG17-22_lr.pdf
    5. Collaborative Thinking Routines in 1-1 Computing Learning Environments_PG23-28_lr.pdf
    6. Digital Game-Based Learning_PG29-33_lr.pdf
    7. Digital Storytelling_PG34-39_lr.pdf
    8. Mathematics PlaySpace ( MaPS)_PG40-44_lr.pdf
    9. Mobile Learning_PG45-51_lr.pdf
    10. Multimodal Literacy_PG52-57_lr.pdf
    11. Open Source Physics_PG58-63_lr.pdf
    12. Participatory Learning in Mathematics_PG64-69_lr.pdf
  2. Volume 2 Full PDF: I in Practice 2014_V2.pdf
    1. Adaptive Learning and Diagnostic Assessment_PG5-10_lr.pdf
    2. Critical Viewing_PG11-15_lr.pdf
    3. Digital Inquiry-based Learning Trails for Science Field Investigations PG16-22_lr.pdf
    4. POGO- Creating Poets on the Go!_PG23-30_lr.pdf
    5. Read & Share@MyBookShop_PG31-37_lr.pdf
    6. Scientific Inquiry with Knowledge Building and Virtual Laboratories_PG38_45_lr.pdf
    7. Students as Designers with Scratch_PG46-51_lr.pdf 
  3. Volume 3 Full PDF: 2853_In Practice 2014_V3_lr.pdf
    1. 05_13_Assessment for Learning with ICT_lr.pdf
    2. 14_20_Inductive Reasoning for Learning_lr.pdf
    3. 21_28_Video conferencing for Blended Learning_lr.pdf
    4. 29_35_Games for Learning_lr.pdf
    5. 36_41_3D Printing for Learning_lr.pdf
    6. 42_50_Apps for Learning_lr.pdf
    7. 51_56_Multimedia for Learning_lr.pdf
    8. 57_63_Robotics for Learning_lr.pdf


EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model

EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
http://weelookang.blogspot.sg/2012/10/ejs-open-source-cathode-ray.html

http://weelookang.blogspot.sg/2015/06/ejss-cathode-ray-oscilloscope-cro.html
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1, Link2
Source code: Link1 , Link2 









http://www.doctronics.co.uk/scope.htm


http://www.doctronics.co.uk/scope.htm



Like a televison screen, the screen of an oscilloscope consists of a cathode ray tube. Although the size and shape are different, the operating principle is the same. Inside the tube is a vacuum. The electron beam emitted by the heated cathode at the rear end of the tube is accelerated and focused by one or more anodes, and strikes the front of the tube, producing a bright spot on the phosphorescent screen.




The electron beam is bent, or deflected, by voltages applied to two sets of plates fixed in the tube. The horizontal deflection plates, or X-plates produce side to side movement. As you can see, they are linked to a system block called the time base. This produces a sawtooth waveform. During the rising phase of the sawtooth, the spot is driven at a uniform rate from left to right across the front of the screen. During the falling phase, the electron beam returns rapidly from right ot left, but the spot is 'blanked out' so that nothing appears on the screen.




In this way, the time base generates the X-axis of the V/t graph.


Effects of t/div, which is 1/C


The slope of the rising phase varies with the frequency of the sawtooth and can be adjusted, using the TIME/DIV control, to change the scale of the X-axis. Dividing the oscilloscope screen into squares allows the horizontal scale to be expressed in seconds, milliseconds or microseconds per division (s/DIV, ms/DIV, µs/DIV). Alternatively, if the squares are 1 cm apart, the scale may be given as s/cm, ms/cm or µs/cm.


1/C , effects of t/div = 0.5
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

1/C , effects of t/div = 0.25
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

1/C , effects of t/div = 0.125
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

1/C , effects of t/div = 0.625
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 


The signal to be displayed is connected to the input. The AC/DC switch is usually kept in the DC position (switch closed) so that there is a direct connection to the Y-amplifier. In the AC position (switch open) a capacitor is placed in the signal path. As will be explained in Chapter 5, the capacitor blocks DC signals but allows AC signals to pass.


effects of V/div


The Y-amplifier is linked in turn to a pair of Y-plates so that it provides the Y-axis of the the V/t graph. The overall gain of the Y-amplifier can be adjusted, using the VOLTS/DIV control, so that the resulting display is neither too small or too large, but fits the screen and can be seen clearly. The vertical scale is usually given in V/DIV or mV/DIV.


V/div, effects of V/div = 10
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

V/div, effects of V/div = 15
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

V/div, effects of V/div = 30
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 



The trigger circuit is used to delay the time base waveform so that the same section of the input signal is displayed on the screen each time the spot moves across. The effect of this is to give a stable picture on the oscilloscope screen, making it easier to measure and interpret the signal.




Changing the scales of the X-axis and Y-axis allows many different signals to be displayed. Sometimes, it is also useful to be able to change the positions of the axes. This is possible using the X-POS and Y-POS controls. For example, with no signal applied, the normal trace is a straight line across the centre of the screen. Adjusting Y-POS allows the zero level on the Y-axis to be changed, moving the whole trace up or down on the screen to give an effective display of signals like pulse waveforms which do not alternate between positive and negative values.

The above information are quoted from http://www.doctronics.co.uk/scope.htm




This java applet shows the basic functions of an oscilloscope.

The oscilloscope is an electronic instrument widely used in making electrical measurements.

The main component of the oscilloscope is the cathode ray tube (CRT).

The CRT is a vacuum tube in which electrons are accelerated and deflected under the influence of electric field. The electrons are deflected in various directions by two sets of plate placed at right angle to each other in the neck of the tube.

Signal for the horizontal deflection plate (X-axis) is generated by the scope

It mathematical form is Fx(t)= C t + D (default)

C : time scale

effects of C = 51, one complete period covers 10 divisions
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of C =25.5, two complete period covers 10 divisions
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of C = 12.75, four complete period covers 10 divisions
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of C = 6.375, eight complete period covers 10 divisions
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of C = 3.1875, sixteen complete period covers 10 divisions
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

D : horizontal offset

D , effects of X offset = 18
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

D , effects of X offset = 36
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

D , effects of X offset = 48
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

D , effects of X offset = 64
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

C , effects of X offset = 80
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 



Effects of Y offset, V0


V0 , effects of Y offset = 18
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

V0, effects of Y offset = 36
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

V0, effects of Y offset = 54
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 




Drag the mouse button to change values for Time/Div, Volt/Div , YOffset and XOffset.
The external signal (need to be measured) is applied to the vertical deflection plate (Y axis).

The default form for this java applet is Fy(t)=A sin(w t + B)

You can change X or Y axis signal to either kind of signal.

X = C t + D

X = A sin( w t + B)

Y = A sin(w t + B)+ V0 default mode Lissajou's figure


effects of A: amplitude of wave signal detected

effects of A = 18, since v/div is 18, it has the height of 1 division.
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of A = 36, since v/div is 18, it has the height of 2 divisions.
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of A = 54, since v/div is 18, it has the height of 3 divisions.
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of A = 72, since v/div is 18, it has the height of 4 divisions.
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of A = 90, since v/div is 18, it has the height of 5 divisions.
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of w: wavelength of wave signal detected

effects of w = 1.5707 = 2π/16, where T = 16.
4 periods inside one division. note that B = 0 for simplicity of wave
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 
effects of w = 0.7853 = 2π/16, where T = 16. 
2 periods inside one division
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 


effects of w = 0.3926 = 2π/16, where T = 16. 
1 period inside one division
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 



effects of w = 0.1963 = 2π/16, where T = 16. 
0.5 periods inside one division
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
Source code: Link1 , Link2 

effects of w = 0.0982 = 2π/16, where T = 16. 
1 period inside 4 divisions or 0.25 period inside 1 division
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
Download and unzip: Link1Link2
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effects of w = 0.0491 = 2π/16, where T = 16. 
1 period inside 8 divisions or 0.125 period inside 1 division
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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effects of w = 0.0393= 2π/16, where T = 16. 
1 period inside 10 divisions or 0.1 period inside 1 division
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
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effects of B: phase difference detected in degrees



effects of B = 90 degree
phase difference =B
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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effects of B = 180 degree
phase difference =B
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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effects of B = 270 degree
phase difference =B
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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effects of B = 360 degree = 0 degree
phase difference =B
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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effects of D: Xoffset of wave signal detected


D , effects of X offset = 16
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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D , effects of X offset = 32
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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D , effects of X offset = 48
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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D , effects of X offset = 64
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
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Source code: Link1 , Link2 

D , effects of X offset = 80
EJSS Cathode Ray Oscilloscope CRO JavaScript Applet Model
author: +Fu-Kwun Hwang and +Loo Kang Wee
author of EJSS: +Francisco Esquembre
Run: Link1 , Link2
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Y = C t + D not supported for an oscilloscope

Creative Commons Attribution Animated Gifs 

https://en.wikipedia.org/wiki/Oscilloscope


Timebase controls


Computer Model of the impact of increasing the timebase time/division.
These select the horizontal speed of the CRT's spot as it creates the trace; this process is commonly referred to as the sweep. In all but the least-costly modern oscilloscopes, the sweep speed is selectable and calibrated in units of time per major graticule division. Quite a wide range of sweep speeds is generally provided, from seconds to as fast as picoseconds (in the fastest) per division. Usually, a continuously-variable control (often a knob in front of the calibrated selector knob) offers uncalibrated speeds, typically slower than calibrated. This control provides a range somewhat greater than that of consecutive calibrated steps, making any speed available between the extremes.

Vertical position control


Computer model of Vertical position Y offset varying in a sine way
The vertical position control moves the whole displayed trace up and down. It is used to set the no-input trace exactly on the center line of the graticule, but also permits offsetting vertically by a limited amount. With direct coupling, adjustment of this control can compensate for a limited DC component of an input.



Horizontal position control

Computer model of Horizontal position control from X offset increasing
The horizontal position control moves the display sidewise. It usually sets the left end of the trace at the left edge of the graticule, but it can displace the whole trace when desired. This control also moves the X-Y mode traces sidewise in some instruments, and can compensate for a limited DC component as for vertical position.






Dual-trace controls

Dual-trace controls green trace = Y = 30*sin(0.1*t)+0.5 teal trace = Y = 30*sin(0.3*t)


Each input channel usually has its own set of sensitivity, coupling, and position controls, although some four-trace oscilloscopes have only minimal controls for their third and fourth channels.

Dual-trace oscilloscopes have a mode switch to select either channel alone, both channels, or (in some) an X‑Y display, which uses the second channel for X deflection. When both channels are displayed, the type of channel switching can be selected on some oscilloscopes; on others, the type depends upon timebase setting. If manually selectable, channel switching can be free-running (asynchronous), or between consecutive sweeps. Some Philips dual-trace analog oscilloscopes had a fast analog multiplier, and provided a display of the product of the input channels.

Multiple-trace oscilloscopes have a switch for each channel to enable or disable display of that trace's signal.