
Rarely have we seen such boring teaching aids. Aides yes, but not aids. 4" Sq. cards. The red ones have lines dividing them into 10ths, with from one to nine of the lined off bars shaded. The green ones have lines in both directions, hence are divided into 100ths. From 5 to 95 of the resulting squares are shaded, always in multiples of 5. On the yellow, the 100 squares of the green cards are each sub divided into 10 giving 1000 (yawn) parts to the whole. From 25 to 975 parts are shaded, in multiples of 25. (Snzz) If this how to teach decimals, its no wonder the kids don't learn. Turn the cards over and use the blank sides for craft projects. You get a total of (76) cards, two of each possible red, one of each possible green and yellow. The above should allow you to compute how many of each color you get.
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23299 DECIMAL CARDS |
Zillions of little bottles. Renegades from a pharmaceutical company, leftover unfilled from runs of exotic we-know-not-what. We have divided them into three basic shapes: A, Narrow Mouth, h (Narr Mo) have a 10mm dia. x 4mm long neck on top of a squarish shoulder, a 13mm dia. 3mm rim and a 7mm dia. opening; B, Wide Mouth, (Wide Mo) have a 16mm dia. x 4mm long neck on top of a squarish shoulder, a 19mm dia. x 3mm rim and a 12 or 13mm dia opening; C, Sloped Shoulder, (Sl Sh) have roughly 5-6mm long neck that tapers from the soft shoulder to 15mm dia, with a 19mm dia x 3mm rim and a 12-13mm dia. opening. Height refers to height overall, and dia. to the body dia. in the table below. Great items for the doll house (for kids old enough not to swallow them), to hold tiny wild flowers, for decorative art work, individual cruets, or just to hold and marvel at. All quite sturdy glass. In the real world, you would pay from $75 (smallest) to $225 (biggest) for 288 of these, which is the smallest quantity you could get!! Narrow mouth bottles take a #00 cork. (Our part number 88746) Wide mouth and sloped shoulder bottles take a #3 cork. (Our item number 88748)
| Dia. | Height | ||||
|---|---|---|---|---|---|
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40108 NARROW MOUTH 10ML CLEAR | 22mm | 52mm | Details | |
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4735 NARROW MOUTH 5ML AMBER | 23mm | 37mm | Details | |
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31492 NARROW MOUTH 5ML AMBER | 21mm | 39mm | Details | |
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31495 NARROW MOUTH 5ML AMBER | 21mm | 38mm | Details | |
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40107 NARROW MOUTH 8ML CLEAR | 24mm | 40mm | Details | |
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40815 SLOPED SHOULDER 100ML CLEAR | 52mm | 95mm | Details | |
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40814 SLOPED SHOULDER 25ML CLEAR | 32mm | 57mm | Details |
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