Stadium design

"Stadium design" was the topic of investigation for Ryan (Grade 6 boy).

Student reflection and PowerPoint files
Transcript of student reflection
Voice-over script
Researcher reflection
Conceptual consolidation rubric

 

 

Session 1

(Did not record reflection)

Stadium design 210711.ppt

 

My subject is stadium design. I’m focusing on the acoustics not the actual buildings. When I go to a concert or a sporting event it always amazes me how they can stand such noise level. I’m trying to find out how you don’t feel the noise in the floor and your body.

Ryan's voice-over script reads much like a reflection.  A reflection was not recorded during this session but his focus for future investigation was still stated, i.e., "Why don't you feel the noise in your body?"

I've been to some concerts where you can feel the noise in your body.  Maybe that's why my ears are still ringing...

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 2

Stadium design 280711.ppt

 

Umm, today I didn't learn anything. I was just starting to work on my animation of my stadium.

Ryan may not have felt that he learnt anything about his topic but he is learning about the animation process. The imagery which he devises will inform and extend our discussions about this topic.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes
Session 3

Stadium design 110811.ppt

Today I learnt that ripples in a pond are a good way to describe what sound waves look like.

Stadium design focusing on the acoustics not the actual buildings. When you go to a concert or a sporting event you might notice that they can stand extreme noise level. I’m trying to find out how you don’t feel the noise in your body.

The use of ripples to show sound is a common enough representation but it really helped Ryan in planning his animation.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 4

Stadium design 180811.ppt

Today I did quite a bit of work but then I deleted it all because the boy who is doing "Satellites" told me a different way how to do it.

The boy who showed him "a different way to do it" was demonstrating the "Insert duplicate slide" technique. I had explained this technique to all of the students during Session 1 but sometimes it takes another peer to get the message across.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 5

Stadium design 250811.ppt

Today I realised that the stadium design is not purely for acoustics and it's mainly for the spectators and seeing what they came to see.

This animation is focusing on the acoustics not the actual buildings.

When you go to a concert or a sporting event you might notice that they can stand extreme noise level.

The next step for this student might be to identify the relationship between the building design or layout and its acoustic qualities.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 6

Stadium design 010911.ppt

This week I started to write my voice-over text and I was writing about how the sound needs angles and softer surfaces to not make such an effect on the people who are watching it, the spectators.

 

This animation is focusing on the acoustics not the actual buildings.

When you go to a concert or a sporting event you might notice that they can stand extreme noise level.

The actual design is generally just for the spectators view and not the acoustics though they would still take into account having softer surfaces  and many different angles so the sound can’t bounce.  

I have moved this Ryan up in the conceptual consolidation rubric in three areas:

He has "Identified some relevant variables" (materials, angles) and the "Relationship between the variables" as helping to reduce noise levels. This has also raised his "Self-assessment" to a level of "Basic understanding".

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 7

Stadium design 080911.ppt

Today I've been thinking about what I can do for my animation and I've decided on doing a close-up of a carpet and showing where the sound bounces.

Ryan didn't change his voice-over script but his reflection showed that he is moving into materials and the impact they have on sound absorption.

My suggestion for him was to focus either on design guidelines (for new stadiums) or soundproofing recommendations (which could apply to both new and existing stadiums). I suppose he doesn't have to choose as long as he acknowledges both variables.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 8

Stadium design 220911.ppt

Today I had an idea of getting lots of little music notes and making a sort of pointy edged thing and bouncing them off while playing a song and showing what different angles can mean. And then show a straight line and show what a difference that would make to the sound and feel of being in a stadium.

I've included a screen shot of the "pointy edged thing" to bounce notes off that Ryan described in his reflection:

angles

This visualisation has the potential to be quite memorable and even iconic as it could resemble the early arcade game "pong" where a ball is bounced between paddles in a game of tennis.

This appears to be his interpretation of a reflective panel. It might also be worth having curved edges surrounding the shape as most stadiums are rounded or oval shaped.

I don't want to detract from the simplicity of his idea but I have found an interesting animation dealing with sound at http://www.falstad.com/ripple/index.html This animation has user-controlled variables such as the number of sound sources to demonstrate interference patterns.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes
Absent session 9 (Holiday)
Absent session 10 (Holiday)
Absent session 11 (Holiday)

Session 12

Stadium design 031111.ppt

Brendan gave me an idea of making a similar animation compared to 'Pong' and it’s showing two different parallel lines and their angles and the sound moving between them.

This animation is focusing on the acoustics not the actual buildings.

When you go to a concert or a sporting event you might notice that they can stand extreme noise level. The actual design is generally just for the spectators view and not the acoustics though they would still take into account having softer surfaces  and many different angles so the sound can’t bounce.

Different materials would be vital in the building of anything but the materials

The voice-over script has been expanded but ends abruptly in the middle of a new thought about building materials.

The pong idea looks like it will replace the "ripples in a pond" representation. I'm wondering whether it is sufficient to show a point on a wave and not the whole wave itself. This would be particularly important with wave diffraction although diffraction might be too much detail for Ryan's purposes.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 13

Stadium design 101111.ppt

Today I learnt that sound can move around the room.  It has the same effect as wind but, it has…the air molecules are changed through the vibrations of the wind.

This animation is focusing on the acoustics not the actual buildings. When you go to a concert or a sporting event you might notice that they can stand extreme noise level.

Sound can move around the room like in pong it has the same effect but that’s not actually how it moves because that would be wind.

(toy balls)

Sound waves travel by air molecules vibrating and passing these vibrations on.

The actual design is generally just for the spectators view and not the acoustics though they would still take into account having softer surfaces  and many different angles so the sound can’t bounce.

Whilst preparing for this session, I came across some information about how sound waves involve the transmission of energy but the air itself doesn't move as that would be wind. I hadn't thought of it like this before and this student seemed to pick up the difference immediately. Ryan mentions wind in his reflection and it's interesting that he mentions air molecules "changed through the vibrations of the wind".

The pong idea might have been short lived as it suggests that the air does move. Another metaphor that might be useful involves those toy balls which hang together on strings from a frame (I can't remember what they're called).

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 14

Stadium design 171111.ppt

Brendan showed me this animation of the Newton’s cradle which I think is a good way of showing how the air doesn’t move.  But the…it’s the…energy in the air that’s moving.  Is that right?

This animation is focusing on the acoustics not the actual buildings. When you go to a concert or a sporting event you might notice that they can stand extreme noise level.

Sound waves travel by air molecules vibrating and passing these vibrations on.

The actual design is generally just for the spectators view and not the acoustics though they would still take into account having softer surfaces  and many different angles so the sound can’t bounce.

Sound can move around the room like in pong it has the same effect but that’s not actually how it moves because that would be wind.

I soon found out after the last session that the toy balls are in fact "Newton's cradle".

Ryan has continued animating the Pong imagery and now has 337 slides. I've noticed that he has inserted a default timing of 1 second between each slide. This would suggest that he thinks that PowerPoint itself does the animating when it fact it is just a tool to help generate the imagery.

You can hear at the end of Ryan's reflection that he is not certain about how these variables fit together.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 15

 

Stadium design 011211.ppt

Stadium design 011211b.ppt

Today I decided that I’ll show the pong imagery first and then I’ll show the Newton’s cradle to show how the sound moves through the air. 

I’ve made a curved line so then I can show, well it will be easier for me to keep, a perfect arc for the cradle.

 

It now seems logical to utilise both analogies of the Pong imagery and Newton's cradle. During the last session we talked about "correcting" the pong imagery with Newton's cradle near the start of the animation. Now we're thinking of waiting until the end of the animation to introduce Newton's cradle. The Pong imagery would work well at the start because it is ideal for showing parallel surfaces and how softer materials reduce reflection.

I've moved Ryan along the conceptual consolidation rubric for "Uses correct terminology" as all of the key words are in place such as energy, vibrations and air molecules.

 

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes

Session 16

 

Stadium design 081211.ppt

Stadium design 081211b.ppt

molecule vibration.ppt

newtons cradle.ppt

parallel.ppt

pong.ppt

soft surfaces.ppt

Today I finished my voice-over text and I’ve been working on animating an air molecule shaking to show it has energy and I have almost finished my animation. 

I’ve told Brendan what I need to be done, so the finishing touches, and he’s going to kindly help me with that.

This animation is focusing on the acoustics of stadium design and not how a stadium looks.

Sound can bounce back and forth in most stadiums like in this game of pong. The sound waves will eventually lose energy but there are a few simple things that can be done to reduce the sound which bounces around.

Parallel surfaces are part of the problem so using different angles will help stop the sound from going back and forth.

Soft surfaces will absorb much of the sound energy.

This pong visualisation is good for showing where the sound moves but the air itself doesn’t actually move around as that would be wind.

Sound waves travel by air molecules vibrating and passing these vibrations on.

Newton’s cradle is a better example of how sound waves travel.  It shows how energy is transferred through a substance without that substance having to change its position.

As Ryan says at the end of his relfection, it's now over to me to finish off the animation based on his instructions. Most of the imagery is in place but there is nothing there for the reference to soft surfaces or the different angles. The Newton's cradle imagery is also incomplete. This is actually quite difficult to animate smoothly. Below is a screen shot showing the scaffolding imagery of a horizontal line and a circle which were used to create a smooth arc and then deleted:

Newton's cradle construction

I've moved Ryan along the conceptual consolidation rubric for "Identifying relevant variables" as his voice-over script covers all of the main points.

I have noticed one issue with his imagery which has prevented him from achieving "Deep understanding" for "Identifies relationships between variables". I'll wait until the debriefing session to see if he has picked up on it too.

Uses correct terminology With assistance Simplified terminology Some correct terminology Actual terminology

Identifies relevant variables

Not apparent With assistance Basic understanding

Deep understanding

Identifies relationships between variables Not apparent With assistance Basic understanding Deep understanding
Self-assessment. Does the student think that they understand their topic? No Not really Basic understanding Yes
Session 17 was the debriefing session.

 

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