## InterA.4Balls2Boxes History

September 27, 2008, at 03:12 PM by LFS - Comment added
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September 10, 2008, at 08:47 AM by Dani - Comment added
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September 10, 2008, at 01:41 AM by LFS -
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Number the balls: Attach:4balls_number.jpg Δ

to:

Number the balls:

September 10, 2008, at 01:40 AM by LFS -
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[]

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April 30, 2008, at 06:59 AM by LFS -
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April 30, 2008, at 06:58 AM by LFS -
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April 26, 2008, at 09:48 AM by LFS -
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Then, double-click on 4balls2boxes.html. How do I do all this?
April 24, 2008, at 11:10 PM by LFS -
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We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Are the colors mixed or separate?

to:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes.
Are the colors mixed or separate?

Deleted line 53:
April 24, 2008, at 11:06 PM by LFS -
Changed lines 19-25 from:

[c valign=middle]
[row]
[c]Activity Notes
[row]
[]
We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Are the colors mixed or separate?

to:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Are the colors mixed or separate?

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(a) Both boxes will have will have 1R&1G.

to:

(a) Both boxes will have will have 1R & 1G.

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[tableend]

April 24, 2008, at 10:49 PM by LFS -
April 24, 2008, at 10:48 PM by LFS -
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April 24, 2008, at 10:48 PM by LFS -
Deleted lines 1-5:
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Scratch file designed by Linda Fahlberg-Stojanovska.

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"Mutually exclusive" meaning both events cannot happen at same time and "complete" meaning no other event can occur.
to:
Deleted lines 61-62:
April 20, 2008, at 05:43 AM by LFS -
Changed line 28 from:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Are the colors % c11 bgr% or separate?

to:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Are the colors mixed or separate?

April 20, 2008, at 05:12 AM by LFS -
April 20, 2008, at 04:14 AM by LFS -
Changed line 20 from:

<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls2boxes_v3.sb'></applet>

to:

<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls_v3.sb'></applet>

April 20, 2008, at 04:13 AM by LFS -
April 20, 2008, at 04:12 AM by LFS -
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<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls2boxes
_v3.sb'></applet>

to:

<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls2boxes_v3.sb'></applet>

April 20, 2008, at 04:09 AM by LFS -
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• Scratch file designed by Linda Fahlberg-Stojanovska.
to:
April 20, 2008, at 04:08 AM by LFS -
Changed lines 20-21 from:

<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls_v3.sb'></applet>

to:

<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls2boxes
_v3.sb'></applet>

April 20, 2008, at 04:06 AM by LFS -
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April 20, 2008, at 03:55 AM by LFS -
Changed line 28 from:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Are the colors mixed or separate?

to:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Are the colors % c11 bgr% or separate?

April 20, 2008, at 03:53 AM by LFS -
Deleted lines 1-3:
• Online Activity: Mix and Drop 2 Red and 2 Green Balls into 2 Boxes
How often will boxes have mixed colors? How often will they be separate?
Changed line 28 from:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes.

to:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Are the colors mixed or separate?

Changed lines 61-62 from:
• Download 4 Ball-2 Box Drop Scratch file designed by Linda Fahlberg-Stojanovska
to:
• Scratch file designed by Linda Fahlberg-Stojanovska.
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April 20, 2008, at 03:03 AM by LFS -
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• How many times does mixed occur?
to:
• How many times does mixed occur?
April 20, 2008, at 02:39 AM by LFS -
April 20, 2008, at 01:12 AM by LFS -
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[ valign=middle] to see the whole action ***

to:

[ valign=middle] below to see the whole action ***

April 20, 2008, at 01:07 AM by LFS -
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• How many times should mixed occur?
to:
• How many times does mixed occur?
April 20, 2008, at 01:00 AM by LFS -
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<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls_v2.sb'></applet>

to:

<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls_v3.sb'></applet>

Changed line 62 from:
• Download 4 Ball-2 Box Drop Scratch file designed by Linda Fahlberg-Stojanovska
to:
• Download 4 Ball-2 Box Drop Scratch file designed by Linda Fahlberg-Stojanovska
April 20, 2008, at 12:59 AM by LFS -
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The following two events are mutually exclusive and complete.

to:

These two events are mutually exclusive and complete.

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Do the experiment 200-1000 times.

to:

Do the experiment 200-1000 times.

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• How many of these times should the event mixed occur?
to:
• How many times should mixed occur?
April 20, 2008, at 12:56 AM by LFS -
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We call this event: SEPARATE colors.

to:

We call this event: SEPARATE colors.

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Play this applet to find out the probability of these 2 events.
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• What is the percentage of mixed?
• What is the percentage of separate?
to:
• What is the percent of mixed?
• What is the percent of separate?
April 20, 2008, at 12:55 AM by LFS -
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We call this event: MIXED colors.

to:

We call this event: MIXED colors.

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We call this event: SEPARATE colors.

to:

We call this event: SEPARATE colors.

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Play this applet to find out the probability of each of these 2 events.
to:
Play this applet to find out the probability of these 2 events.
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• What appears to be the probability of mixed?
• What appears to be the probability of separate?
to:
• What is the percentage of mixed?
• What is the percentage of separate?
April 20, 2008, at 12:54 AM by LFS -
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• Online Activity: Mix and Drop 2 Red and 2 Green Balls into 2 Flat Boxes
to:
• Online Activity: Mix and Drop 2 Red and 2 Green Balls into 2 Boxes
Changed line 31 from:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 flat boxes.

to:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes.

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Do the experiment several hundred times.

• What appears to be the probability of the event mixed?
• What appears to be the probability of the event separate?
to:

Do the experiment 200-1000 times.

• What appears to be the probability of mixed?
• What appears to be the probability of separate?
April 20, 2008, at 12:51 AM by LFS -

Changed lines 45-52 from:

• Do the experiment several hundred times.
• What appears to be the probability of the event mixed?
• What appears to be the probability of the event separate?
• Theoretically,
• How many different ways can the balls drop into the boxes with mixed colors?
• How many of these times should the event mixed occur?
to:

Changed lines 47-49 from:

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Do the experiment several hundred times.

• What appears to be the probability of the event mixed?
• What appears to be the probability of the event separate?

Now for some dreaded theory ...
Number the balls: Attach:4balls_number.jpg Δ

• How many different ways can the balls drop into the boxes?
• How many of these times should the event mixed occur?

April 20, 2008, at 12:39 AM by LFS -
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[c]Applet Notes

to:

[c]Activity Notes

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We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes.
*** Click on "Cat 1 Try" to see the idea. ***

The following two events are mutually exclusive and complete (see below).

to:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 flat boxes.

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(a) Both boxes will have will have 1R&1G.
We call this event: MIXED colors.
Attach:mix4box_mixed.png Δ

to:

The following two events are mutually exclusive and complete.

Changed lines 35-38 from:

(b) One box 2G, other box 2R.
We call this event: SEPARATE colors.
Attach:mix4box_separate.png Δ

Play this applet to find out the probability of each of these 2 events.
to:

(a) Both boxes will have will have 1R&1G.
We call this event: MIXED colors.
Attach:mix4box_mixed.png Δ

Changed lines 39-42 from:

Then think about the mathematics of this.

to:

(b) One box 2G, other box 2R.
We call this event: SEPARATE colors.
Attach:mix4box_separate.png Δ

Play this applet to find out the probability of each of these 2 events.

• Do the experiment several hundred times.
• What appears to be the probability of the event mixed?
• What appears to be the probability of the event separate?
• Theoretically,
• How many different ways can the balls drop into the boxes with mixed colors?
• How many of these times should the event mixed occur?

April 20, 2008, at 12:28 AM by LFS -
Changed line 1 from:
to:
Changed lines 3-4 from:
• Online Activity: Mix and Drop 2 Red and 2 Green Balls into 2 Boxes
to:
• Online Activity: Mix and Drop 2 Red and 2 Green Balls into 2 Flat Boxes
How often will boxes have mixed colors? How often will they be separate?
Changed lines 6-7 from:
*** Click on "Cat 1 Try" to see the idea. ***
to:
Changed lines 12-17 from:
to:

[c]

[table border=0]

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[c]Applet Notes
[row]
[]
We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes.
*** Click on "Cat 1 Try" to see the idea. ***

to:

[ valign=middle]*** Click on
[]Attach:cat1try.jpg Δ
[ valign=middle] to see the whole action ***
[tableend]

April 16, 2008, at 11:29 AM by LFS -
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to:
April 16, 2008, at 11:23 AM by LFS -
Changed lines 4-5 from:
*** Click on "Cat 1 Try" to see the idea. ***
to:
*** Click on "Cat 1 Try" to see the idea. ***
April 16, 2008, at 11:21 AM by LFS -
Changed lines 4-5 from:
to:
*** Click on "Cat 1 Try" to see the idea. ***
Changed lines 18-19 from:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Click on "Cat 1 Try" to see the idea.

to:

We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes.
*** Click on "Cat 1 Try" to see the idea. ***

April 16, 2008, at 11:18 AM by LFS -
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• 4 Ball - 2 Box Drop for Scratch-MIT designed by Linda Fahlberg-Stojanovska
to:
• Download 4 Ball-2 Box Drop Scratch file designed by Linda Fahlberg-Stojanovska
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•
to:
April 16, 2008, at 11:10 AM by LFS -
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to:

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[c]

to:

[c valign=middle]

Changed lines 11-14 from:

[tableend]

• 4 Ball - 2 Box Drop for Scratch-MIT designed by Linda Fahlberg-Stojanovska
to:

[c valign=middle]
[row]
[c]Applet Notes
[row]
[]
We have 4 balls - 2 Reds and 2 Greens. We drop them randomly into 2 boxes. Click on "Cat 1 Try" to see the idea.

The following two events are mutually exclusive and complete (see below).

Changed lines 21-23 from:

to:

(a) Both boxes will have will have 1R&1G.
We call this event: MIXED colors.
Attach:mix4box_mixed.png Δ

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Related Topics

•
to:

(b) One box 2G, other box 2R.
We call this event: SEPARATE colors.
Attach:mix4box_separate.png Δ

Play this applet to find out the probability of each of these 2 events.
Changed line 30 from:

to:

Then think about the mathematics of this.

Changed lines 32-34 from:
to:
"Mutually exclusive" meaning both events cannot happen at same time and "complete" meaning no other event can occur.
Changed lines 35-52 from:
to:
April 15, 2008, at 03:42 PM by LFS -
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<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls.sb'></applet>

to:

<applet id='ProjectApplet' style='display:block' code='ScratchApplet' codebase='http://mathcasts.org/mtwiki/uploads/Activity' archive='ScratchApplet.jar' height='387' width='482'><param name='project' value='4balls_v2.sb'></applet>

Changed lines 13-14 from:
• 4 Ball - 2 Box Drop for Scratch-MIT designed by Linda Fahlberg-Stojanovska
to:
• 4 Ball - 2 Box Drop for Scratch-MIT designed by Linda Fahlberg-Stojanovska
April 15, 2008, at 03:18 PM by LFS -