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  #1  
Old 02-01-2009, 08:01 PM
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little317 little317 is offline
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3D shapes

I need some lesson ideas to teach the 3D shapes. Any suggestions?
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  #2  
Old 02-01-2009, 08:12 PM
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czacza czacza is offline
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Introduce the shapes-do a shape search in the room

Have a paper bag for each kid- have some object in the bag representing each of the 3D shapes- Cans for cylinders, boxes, cubes, balls for spheres, cone shapes, pyramids...have kids feel in the bags you give them and identify by touch which shape they have...

Do experiments with the shapes- do they roll? how many sides? how many 'points' (vertices)?

Trace each of the different shape 'sides' (faces) of each 3D shape..
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Old 02-01-2009, 08:24 PM
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little317 little317 is offline
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I like the bag idea. I'll have to do that tomorrow. I plan on haveing the kids build a cube using sticks and playdough. I also have a candy bag with examples: marshmallow: cylinder, kiss:cone, candy corn: cone, whoppers:sphere, caramel:cube. We've also already done a shape hunt around the class and recorded how many by making tallies. On Thursday we searched for shapes in magazines.

We have 2 more weeks, so I'm trying to find lots of ideas to add to what I've done so far. My kids are really having a hard time understanding the difference between a circle and a sphere. Its like they are not getting the concept that they are SOLID shapes.
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  #4  
Old 02-01-2009, 11:24 PM
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Show them 2D pictures and compare them to 3D items.
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  #5  
Old 02-02-2009, 04:28 PM
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Tasha Tasha is offline
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I love making a food graph with the 3-d shapes (and eating it )
Sphere - Yogos yogurt balls
Cube - cheese cubes (come premade next to shredded cheese)
Cone - bugles
Cylinder - combos filled pretzel snacks
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  #6  
Old 02-02-2009, 07:34 PM
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DizneeTeachR DizneeTeachR is offline
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Quote:
Originally Posted by Tasha View Post
I love making a food graph with the 3-d shapes (and eating it )
Sphere - Yogos yogurt balls
Cube - cheese cubes (come premade next to shredded cheese)
Cone - bugles
Cylinder - combos filled pretzel snacks
Oooh... I love this idea!!!

Compare those shapes to like ritz crackers circle, wheat thins squares...
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  #7  
Old 02-03-2009, 07:27 PM
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czacza czacza is offline
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Bugles aren't really cones- cones are solid shapes, bugles have that darn open end...I guess for K though they get the general idea...

Also the cracker thing is a cute idea but crackers DO have depth...so they too are '3-D'- shapes...

I know, I'm picky...
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  #8  
Old 02-03-2009, 09:31 PM
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DizneeTeachR DizneeTeachR is offline
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Quote:
Originally Posted by czacza View Post
Bugles aren't really cones- cones are solid shapes, bugles have that darn open end...I guess for K though they get the general idea...

Also the cracker thing is a cute idea but crackers DO have depth...so they too are '3-D'- shapes...

I know, I'm picky...
But ritz crackers aren't spheres... if you're picky. They are more like "puffy" circles.
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  #9  
Old 02-04-2009, 06:17 PM
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czacza czacza is offline
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I never said round crackers were spheres, just 3D...'Puffy circles' would actually be 'cylinders'...if not for those darn ridges on the sides of a Ritz!!
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  #10  
Old 10-05-2009, 02:51 AM
miamee miamee is offline
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i have them go outside and play with beach balls (spheres) and frisbees (circles) and we compare how well they travel through the air... frisbees are flat so they slice through the air. beach balls are solid so they hit more air and kind of float. we aren't allowed to call them balls and frisbees when throwing and catching... we have to say spheres and circles.
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