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making flexible LEGO structure (eg. circle)
Moderators: AmyCowen, kgudger, bfinio, MadelineB, Moderators
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deleted-60281
- Posts: 11
- Joined: Fri Jan 28, 2011 5:23 pm
- Occupation: STUDENT 1ST GRADE
- Project Question: LEGO BRICKS (1X1, 1X2, 1X3, 1X4, 2X2, 2X3, 2X4) HOW MANY TOTAL COMBINATION'S I CAN MAKE AND WILL THAT BE 'ODD' OR 'EVEN'. I WILL KEEP ONE LEGO BRICK FIXED AS BASE AND OTHER WILL BE PLACE IN DIFFERENT WAYS. TO START WITH I WILL USE TWO SAME COLOR BRICKS. SO FAR WE ALL KNOW ODD + ODD = EVEN, EVEN + ODD = EVEN, BUT WHEN WE USE 2X2 VS. 2X2 BRICKS WE GET 9 COMBINATION AND THAT IS 'ODD'. I.E FROM TWO EVEN BRICKS
WE GET 'ODD'. WHAT ABOUT OTHER POSSIBILITIES? - Project Due Date: FEBRUARY 18TH, 2011
- Project Status: I am conducting my experiment
making flexible LEGO structure (eg. circle)
I am writing on behalf of my 6 year old son (1st grader). He going to make LEGO science projects and he has an idea (to his level) as how to give flexibility to LEGO bricks (1x3). He plans to show a 1x3 wall solid and rigid to turn into circular shape (water well). Is it doable science project? Hope you can give us expert advice here.
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deleted-71712
- Former Expert
- Posts: 289
- Joined: Mon May 05, 2008 10:34 am
- Occupation: graduate student
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- Project Status: Not applicable
Re: making flexible LEGO structure (eg. circle)
Hi,
Here's an idea to explore: A regular polygon is a shape made of a certain number of sides (n sides) that are all the same length, such that the angle between any two sides is the same and the shape is convex. (That sounds complicated, but if you look at pictures of concave and convex polygons your son will pick it up quickly and can probably explain 'convex' in a way that makes sense to him.) The more sides a regular polygon has -- going to from triangle, to square, to pentagon, etc -- the more it looks like a circle. So, one way to think of a circle is as a regular polygon with an infinite number of sides.
http://en.wikipedia.org/wiki/Convex_polygon
http://www.mathopenref.com/polygonregular.html
http://mathforum.org/library/drmath/view/54912.html
Amanda
Here's an idea to explore: A regular polygon is a shape made of a certain number of sides (n sides) that are all the same length, such that the angle between any two sides is the same and the shape is convex. (That sounds complicated, but if you look at pictures of concave and convex polygons your son will pick it up quickly and can probably explain 'convex' in a way that makes sense to him.) The more sides a regular polygon has -- going to from triangle, to square, to pentagon, etc -- the more it looks like a circle. So, one way to think of a circle is as a regular polygon with an infinite number of sides.
http://en.wikipedia.org/wiki/Convex_polygon
http://www.mathopenref.com/polygonregular.html
http://mathforum.org/library/drmath/view/54912.html
Amanda
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deleted-60281
- Posts: 11
- Joined: Fri Jan 28, 2011 5:23 pm
- Occupation: STUDENT 1ST GRADE
- Project Question: LEGO BRICKS (1X1, 1X2, 1X3, 1X4, 2X2, 2X3, 2X4) HOW MANY TOTAL COMBINATION'S I CAN MAKE AND WILL THAT BE 'ODD' OR 'EVEN'. I WILL KEEP ONE LEGO BRICK FIXED AS BASE AND OTHER WILL BE PLACE IN DIFFERENT WAYS. TO START WITH I WILL USE TWO SAME COLOR BRICKS. SO FAR WE ALL KNOW ODD + ODD = EVEN, EVEN + ODD = EVEN, BUT WHEN WE USE 2X2 VS. 2X2 BRICKS WE GET 9 COMBINATION AND THAT IS 'ODD'. I.E FROM TWO EVEN BRICKS
WE GET 'ODD'. WHAT ABOUT OTHER POSSIBILITIES? - Project Due Date: FEBRUARY 18TH, 2011
- Project Status: I am conducting my experiment
Re: making flexible LEGO structure (eg. circle)
thanks Amanda,
I will sure work with my Son on your suggestions.
Niyant
I will sure work with my Son on your suggestions.
Niyant
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deleted-60281
- Posts: 11
- Joined: Fri Jan 28, 2011 5:23 pm
- Occupation: STUDENT 1ST GRADE
- Project Question: LEGO BRICKS (1X1, 1X2, 1X3, 1X4, 2X2, 2X3, 2X4) HOW MANY TOTAL COMBINATION'S I CAN MAKE AND WILL THAT BE 'ODD' OR 'EVEN'. I WILL KEEP ONE LEGO BRICK FIXED AS BASE AND OTHER WILL BE PLACE IN DIFFERENT WAYS. TO START WITH I WILL USE TWO SAME COLOR BRICKS. SO FAR WE ALL KNOW ODD + ODD = EVEN, EVEN + ODD = EVEN, BUT WHEN WE USE 2X2 VS. 2X2 BRICKS WE GET 9 COMBINATION AND THAT IS 'ODD'. I.E FROM TWO EVEN BRICKS
WE GET 'ODD'. WHAT ABOUT OTHER POSSIBILITIES? - Project Due Date: FEBRUARY 18TH, 2011
- Project Status: I am conducting my experiment
Re: making flexible LEGO structure (eg. circle)
Hello Amanda,
Will you please give your expert comments for the below choices for Hypothesis? We are debating in the family.
• Rectangular LEGO bricks when joined with small regular round parts can make LEGO circle and increasing LEGO brick sizes will give larger LEGO circle.
OR
• Smooth LEGO circles can be made from rectangular LEGO bricks without use of special parts and by increasing LEGO brick sizes, larger LEGO circle is achieved.
OR
• How rectangular LEGO bricks can be joined to make a smooth circle without using special LEGO parts and what will happen to circle size when size of LEGO bricks changes?
thanks in advance.
Will you please give your expert comments for the below choices for Hypothesis? We are debating in the family.
• Rectangular LEGO bricks when joined with small regular round parts can make LEGO circle and increasing LEGO brick sizes will give larger LEGO circle.
OR
• Smooth LEGO circles can be made from rectangular LEGO bricks without use of special parts and by increasing LEGO brick sizes, larger LEGO circle is achieved.
OR
• How rectangular LEGO bricks can be joined to make a smooth circle without using special LEGO parts and what will happen to circle size when size of LEGO bricks changes?
thanks in advance.