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 A to Z Teacher Stuff Forums 3D shapes

#1
02-01-2009, 08:01 PM
 little317 Groupie Join Date: Jul 2006 Posts: 1,340 Florida Kindergarten Teacher
3D shapes

I need some lesson ideas to teach the 3D shapes. Any suggestions?

#2
02-01-2009, 08:12 PM
 czacza Multitudinous Join Date: Sep 2001 Posts: 21,963 New Jersey Grade 3
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..
#3
02-01-2009, 08:24 PM
 little317 Groupie Join Date: Jul 2006 Posts: 1,340 Florida Kindergarten Teacher
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.
#4
02-01-2009, 11:24 PM
 Blue Aficionado Join Date: Nov 2005 Posts: 3,683 OREGON
Show them 2D pictures and compare them to 3D items.
#5
02-02-2009, 04:28 PM
 Tasha Phenom Join Date: Feb 2007 Posts: 4,339 Texas Kindergarten Teacher
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
#6
02-02-2009, 07:34 PM
 DizneeTeachR Phenom Join Date: Mar 2003 Posts: 4,402 Midwest
Quote:
 Originally Posted by Tasha 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
02-03-2009, 07:27 PM
 czacza Multitudinous Join Date: Sep 2001 Posts: 21,963 New Jersey Grade 3
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...
#8
02-03-2009, 09:31 PM
 DizneeTeachR Phenom Join Date: Mar 2003 Posts: 4,402 Midwest
Quote:
 Originally Posted by czacza 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
02-04-2009, 06:17 PM
 czacza Multitudinous Join Date: Sep 2001 Posts: 21,963 New Jersey Grade 3
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!!
#10
10-05-2009, 02:51 AM
 miamee Newcomer Join Date: Oct 2009 Posts: 1 Atlanta, GA Kindergarten Teacher
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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