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"Nothing in life is to be feared, it is only to be understood." ..."Marie Curie 1867-1934, Polish born French Physicist, Twice Nobel Prize Winner- Physics and Chemistry)"

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 Author Topic: Primary School Speed Time  (Read 11704 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
engrg1
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 « Embed this message on: October 07, 2012, 09:12:00 pm » posted from:Singapore,,Singapore

Have created a simulation for teaching of speed in Primary School.
Based this simulation by getting ideas from :
(1) The simulation by Prof Huang and Lookang
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2072.0

Features in this simulation:
(1) In "slow-down" mode when the objects are about to collide or reach either Towns.
(This is to ensure that the time for the actual collision or to reach town is as accurate as possible)

(2) Allows user to input the starting position and starting time.

(3) Shows the various distance (like distance from Town A, distance moved) to highlight the concepts of speed.

Teaching ideas with this simulation :
(1) Teacher to use this to demonstrate the concept of speed by showing them visually. Let them see how the formula (distance = speed * time) works and what happens during collision.
(2) Students to "play" with the applet to get conceptual understanding of speed.

Embed a running copy of this simulation

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Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
 speed.jpg (19.84 KB, 800x310 - viewed 520 times.) « Last Edit: October 07, 2012, 09:39:19 pm by engrg1 » Logged
lookang
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http://weelookang.blogspot.com

 « Embed this message Reply #1 on: October 08, 2012, 08:56:32 am » posted from:SINGAPORE,SINGAPORE,SINGAPORE

looks great!

good to include sample questions to test whether your computer model can handle the scenarios.

there is a typo
m instead of km on all the main window text
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engrg1
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 « Embed this message Reply #2 on: October 08, 2012, 02:52:34 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE

Thanks, Lookang.

I have made the necessary changes.

Here are some of the typical questions that you can use:

(1) Town A and Town B are 1000 km apart. The speed of the red object (at Town A) is 50 km/h while the speed of the blue object (at Town B) is 100 km/h.
Both the objects start moving at 9 a.m. What time do they meet?

(2) Both objects are at Town A. They start at the same time. The speed of the red object (at Town A) is 50 km/h while the speed of the blue object (at Town B) is 100 km/h. What is the distance between the two objects after 3 hours?

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
 « Last Edit: October 08, 2012, 03:33:20 pm by engrg1 » Logged
engrg1
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 « Embed this message Reply #3 on: October 08, 2012, 07:01:47 pm » posted from:TOA PAYOH,SINGAPORE,SINGAPORE

Possible teaching ideas:
(1) Click the "Stop Every Hour". Get the students to see what happens every hours
Possible questions to ask:
Where is the object after 1 hr?
Where is the object after 2 hr?
Can you see the pattern?

(2) One of the typical question is to see what is the distance between 2 objects after some time.
Get them to see the relationship between the difference in speed and the distance between 2 objects

(3) Collision or when they meet type of question?
Get the students to articulate what do they observe when the two objects meet?
Possible hints: What is the distance in distance between the two objects?
If the objects are moving in opp direction, what is the distance between Town B and obj1 and Town A and obj2?
If the objects are moving in the same direction, what is the distance between Town B/Town A?

(4) Use the simulation to highlight the difference between the position of the object (i.e., distance with reference to Town A or B) and distance moved.
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engrg1
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 « Embed this message Reply #4 on: November 18, 2012, 03:57:20 pm » posted from:Singapore,,Singapore

Further enhance the previous version to make it "more open" and fit more situations.

Modifications:
(1) Range of values (speed, town, start pos) possible. Users key in values
(2) Accurate calculation of meeting time with the use of events in Evolution (Finally , force myself to learn this:-)) Thank lookang for pointing that out !
(3) Message to be displayed when the simulation is paued.

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
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engrg1
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 « Embed this message Reply #5 on: December 26, 2012, 08:15:49 am » posted from:-,-,SINGAPORE

Dear all, another major revamp of the speed simulation for primary school.

Added in new features:
(1) Display working for the distance traveled.
(2) Allow user to pause the simulation at specific timing or specific distance. Users can change the speed.

For more details about the simulation, please refer to the short write up
https://docs.google.com/document/pub?id=163jjwlQEqmmG2wf6Z0C3AcQI0TXHVCXX1e3F9QOlbus

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
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engrg1
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 « Embed this message Reply #6 on: February 08, 2013, 07:01:56 pm »

Changes made (as requested by teacher):
Convert the time into hour and min (as per the primary School Maths Syllabubs)

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
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"Nothing in life is to be feared, it is only to be understood." ..."Marie Curie 1867-1934, Polish born French Physicist, Twice Nobel Prize Winner- Physics and Chemistry)"
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