Halloween is a time for math fun as students explore pumpkins, spiders, and webs. And what do students do when they get home from trick-or-treating? Why, they sort and count their candy before eating it, of course!
How many seeds?
How much does it weigh?
After making estimates and weighing one pumpkin, do the same for several other pumpkins of different sizes. Do the estimates get closer to the actual weight of each pumpkin?
What's my waistline?
After measuring the circumference of one pumpkin, make estimates and measure several other pumpkins of different sizes. Are you getting any better at estimating? Are your estimates more accurate for small pumpkins or large ones?
Using graph paper, draw a perfectly symmetrical spider.
How many legs?
(The spider leg-counting ideas were shared by Jenny and Chris/CT/1 on the teachers.net primary elementary chatboard, October 14 and 21, 2001.)
Using a 100 chart, circle each multiple of 8. Look for patterns on the grid. Look for patterns in the ones place digit and the tens place digit.
The math of making a spider web
Make a spider web
Look at pictures of different kinds of spider webs (orb, funnel, sheet, scatter, triangle). Draw a web of your choice on graph paper. Find the area and the perimeter of your web. Decide what to do with half and quarter squares.
(This idea was shared by Rheta G. on the teachers.net primary elementary chatboard, Oct. 13, 2001.)
Craft spider webs
Turn your graph-paper web into a web you can hang in a corner or a window!
(Both these craft variations were adapted from ideas found at KinderKorner's Along Came a Spider Web page.)
Make a spider web with string art
Visit Math Cats' String Art for ideas and patterns to make your own string art designs. See if you can design a string art "spider web" with string, thread, or pencil.
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Article by Wendy Petti
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