what ways can plastic math tiles be used in the classroom?
829510
symmetry (fold a piece of paper in half.  2 students work together.  One places a tile on his/her side, the other places his/hers on their side but both sides must be symmetrical.  Be creative to make a picture.), graphing (if they are colored or different shapes), non-standard measurement, sorting, addition/subtraction manipulatives, patterns (if colored or different shapes), discuss attributes.  Of course I teach first grade so GLE's in higher grades may be different.
810545
making a game out of your lesson
741197
Sure, use a calculator, use Excel, use Mathcad, use Matlab
1116538
he he, here are some originals i did..\n\nkeep in mind, KRAZY GLUE is invisible!!!\n\nput it on a teachers chair, or if you want it to be a good one, the principals chair!!\n\nThumbTacks.\n\nplace the colored part down, and the pin facing up, and put it on a teachers chair, glue them down, and put them on the chair of a teacher who doesn't look at the chair before she looks at it. it would serve no purpose if she looks at the chair CUZ SHE AIN'T GOING TO SIT ON IT!!!!!!!!!!!!\n\n((ok enough with chairs))\n\nTV!!! most classes watch movies during the end, the last few days, or this could work if you have a tv in the classroom.\n\nGET A UNIVERSAL REMOTE, and plug in the TV when the teachers not looking, and have fun!!! remember to HIDE the remote and not make it obvious!!\n\ngo into the room before the teacher, and put OIL on the board.. ha ha, works everytime, and CONGRATZ if you do that, because you have just screwed up the board FOR EVER!!! it can't be washed, water doesn't stick to oil. It can't be written on, you cant use chalk to write on oil, it won't stick, and you can't use the eraser!!! and since you're a senior, it won't effect your edumacashun in any way (i did it on my senior year, it was a group of us, we screwed up every single board on the 5th floor. (the third floor was better, they had those white boards that use water based markers, HA HA we use PERMANENT markers and wrote "i will not screw up any more boards because the fifth floor mess is enough" and in the middle we wrote "NOBODY CARES SO STOP TALKING" )\n\nIn general, be creative, be spontaneous, but most important of all LEAVE YOUR MARK AND BE SELFISH you are NOT going to be in that school next year, so you won't be punished (if you leave no trace behind, find a group of classmates who won't rat you out, and do it in rooms that you don't have classes in)\n\nHAVE FUN!
1147950
The only web site I know of is mathforum.org  Try to turn math into a game for her, rather than a chore.  There are some online math games she might like, or if she's doing division problems, you could even use cooking as an example, since measuring cups have division in it.  The trick is trying to make math seem like a fun thing rather than a chore.
391420
These are some ideas aimed for pre-k, 1st and 2nd grade:\n*you can provide different geometrical shapes and have them sort them according to color, size, shape, etc.\n*with the same shapes have them complete a pattern you start for them ex. red circle, yellow square, red circle, yellow square, etc.\n*try looking for a game called "Tangram", I don't know if you can buy one already done or you can make your own in this site:http://www.tangram.i-p.com/\n*give students play money and have them solve problems using it.
114649
Here's an idea.  Show them something that's pretty much flat and rectangular, such as piece of stiff carpet or a pad of paper.  Write on the board what the perimeter, area, and volume are.  Have them measure it with a tape measure and come up with the answers that you have.  They'll see that they just have to add for the perimeter but multiply for the area and volume.
840376
HAVE YOUR DAUGHTER MAKE SOMETHING CRAFTY FOR HER TEACHERS !!!\n\nSHE'LL BE SO PROUD !!!\n\nAND \n\nTHE TEACHERS WILL BE SO HAPPY BECAUSE IT WAS PERSONALLY MADE FOR THEM !!!
511965
Since you need simple and portable, how about starting with something that uses light and prisms to create the spectrum? \nFrom there, you could go to show how rainbows are created ( where the light must be, what the sequence of the rainbow spectrum is) or compare how light colors mix compared to how m=paint colors mix.  I don't know if that is appropriate for the 10 th grade.  But working with light and prisms is always fun.\nmagnetism is always fun, too.
783192
Bring in items with shapes.....ice cream cone, cookie sheet, book, rubrics cube, etc.  Also, trace these shapes and have kids go on geometric shape hunt to try to find the shapes in school. \nFollow up with some type of worksheet.
105012
You can build all (or most of) the platonic and archimedaic solids using Origami.\n\nYou can also buid conic sections (hyperboles, parabola, ellypse and circle) by repeatedly folding a piece of paper along the tangents, point by point, using fundamental properties of each one. (= you get them as the envelope of their tangents).
240497
Here is some information about tiling regular polygons (tiling is also called tessellation):\nhttp://mathforum.org/sum95/suzanne/whattess.html
185895
If you're talking about whiteboard presentations, forget yellow.  If you're doing say the quotient rule, d/dx[f(x)/g(x)], I think I'd use one color for f and f' and another for g and g'.  If it were a 3 function chain rule, I'd use 3 colors.  Too many colors will confuse the kids, and in the heat of instruction they will confuse you, too.  You end up with colored markers sticking out of your nonwriting hand like lollipops with a greedy kid.  Red, green, blue, black are the basics.  Blue doesn't erase as well, usually.  Make sure they're fresh, too, and the tips aren't mashed.  It's worth it, if you want quality.
620304
If you are making a model this might be useful for you:\nUse cardboard to create a ocean with ups and downs. Cover it with dark blue oil paint and some white color for the foam. You can use transparent plastic sheets to cover this model to get a glossy effect. Try not to put the sheet very tight. Stick it loosly so that it creates an effect like waves.\n\nIf you want to make the whole classroom ocean-like, then make it slightly dark and run a cassette with the sound of the waves.
611694
I'm a teacher, too, and I like some of these ideas.  I made cartoony looking fruit faces on my color printer with the kids' names and laminated them and put holes in the top with a string.  I then put a plate with real fruits on it on each table (mine were square-not that it matters) Some of the fruits were cut up.  As children came into the room, I put the fruit necklaces on them and told them they had to find their new "bowl" and not to touch.  Everyone who "played nice" and followed all the rules got to share in the fruity snacks!  Now,  we use the necklaces on cubbies and chairs and for play teams and the like.  Other things could work with this method, too, like sports balls, cartoon characters, stuffed critters, etc.  You just need a good clip art pack!
64819
I'm for wonka bars too: better if made of - say - 4 x 6 rectangles, so that you can try to compare different portions: let kids discover that they must refer to smaller units to compare 8-ths and 12-ths ( and in the end eat chocolate if the work is good - or at least if chocolate is good)\n\nNB: start telling them that you cannot add or subtract what you cannot compare, then teach them how to compare
260221
They have clock kits that you can use to make a clock out of almost any thin item (CD, plate, metal sheet, etc.).  \n\nhttp://scientificsonline.com/search.asp?t=ss&ss=clock+kit&sid=yahoo&cm_mmc=yahoo-_-cpc-_-edmu-_-clockkits&OVRAW=clock%20kits&OVKEY=clock%20kit&OVMTC=standard&bhcd2=1142905545