Multiplication With Bead Bars: Difference between revisions
From Montessori Album
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===Where to Buy=== | ===Where to Buy=== | ||
Prices and links | [[Category:Where to Buy]] | ||
<div | Prices and links checked: 23 January 2022 | ||
<br>(Amazon/Bookshop are affiliate links, which help cover costs of running the site.) | |||
<div class="buyGrid"> | |||
[ | <div class="buyElement"> | ||
[https://www.affordmontessori.com/index.php/montessori-material/mathematics/decanomial-bead-bar-box.html Affordable Montessori] $ | {| class="buytable sortable" | ||
[https:// | |- | ||
[https:// | !colspan="2"|Decanomial Bead Bar Box (55 of each) | ||
[https:// | |- | ||
[https:// | ! Store !! Price | ||
[https:// | |- | ||
[https://www. | |[https://www.adenamontessori.com/ius/details.php?did=993 Adena] | ||
|$108.88 | |||
[https://www. | |- | ||
|[https://www.affordmontessori.com/index.php/montessori-material/mathematics/decanomial-bead-bar-box.html Affordable Montessori] | |||
[https://www.nienhuis.com/us/en/decanomial-bead-bar-box-individual-beads- | |$130.00 | ||
[https://www. | |- | ||
[https://www. | |[https://www.alisonsmontessori.com/Decanomial_Bead_Box_55_in_a_box_p/m26.htm Alison's] | ||
|$104.73 | |||
|- | |||
|[https://bruinsmontessori.com/products/mathematics/decanomial-bead-bar-box.html Bruins] | |||
|$312.00 | |||
[https://www. | |- | ||
|[https://usa.montessorimaterials.com/products/decanomial-bead-bar-box E & O] | |||
[https://www.wintergreen.ca/mathematics-1/multiplication-bead-bar-layout-box- | |$175.50 | ||
|- | |||
|[https://www.montessoriequipment.com/Decanomial-Bead-Bar-p/mat-210-nb.htm IFIT] | |||
|$115.00 | |||
|- | |||
|[https://www.kidadvance.com/bead-decanomial.html Kid Advance] | |||
[ | |$115.99 | ||
[https://www.alisonsmontessori.com/Checker_Board_Beads_p/m71.htm Alison's] $ | |- | ||
[https://www.alisonsmontessori.com/Checker_Board_Beads_Premium_Quality_p/pm64.htm Alison's] $ | |[https://www.leaderjoyusa.com/Montessori/Montessori%20mathematics/bead-decanomial-with-box.html Leader Joy] | ||
[https://bruinsmontessori.com/products/mathematics/checker-board-beads.html Bruins] $ | |$118.95 | ||
[https:// | |- | ||
[ | |[https://montessorioutlet.com/authentic-montessori/mathematics/bead-decanomial.html Montessori Outlet] | ||
[https://www. | |$123.95 | ||
[https:// | |- | ||
[https:// | |[https://www.nienhuis.com/us/en/decanomial-bead-bar-box-individual-beads-nylon-nienhuis-montessori-usa/product/5313/ Nienhuis]<br><span class="comment">nylon beads</span> | ||
[https://www.nienhuis.com/us/en/checker-board-beads-individual-beads- | |$345.50 | ||
[https://www. | |- | ||
|[https://www.nienhuis.com/us/en/decanomial-bead-bar-box-individual-beads-glass-nienhuis-montessori-usa/product/4123/ Nienhuis]<br><span class="comment">glass beads</span> | |||
[https://www. | |$410.50 | ||
[https://www.wintergreen.ca/mathematics-1/ | |- | ||
|[https://www.thinkamajigs.com/bead-decanomial/ Thinkamajigs] | |||
|$139.95 | |||
| | |- | ||
|[https://www.wintergreen.ca/mathematics-1/nienhuis-decanomial-bead-bar-box-individual-beads-glass-0190g0 Wintergreen] | |||
| | |$539.95 | ||
|- | |||
|[https://www.wintergreen.ca/mathematics-1/nienhuis-decanomial-bead-bar-box-individual-beads-nylon-0190m0 Wintergreen]<br><span class="comment">nylon beads</span> | |||
|$459.95 | |||
|- | |||
[https://www. | |[https://www.wintergreen.ca/mathematics-1/decanomial-bead-bar-box-750300 Wintergreen]<br><span class="comment">quantity unclear</span> | ||
[ | |$145.95 | ||
[https://www.nienhuis.com/us/en/colored-bead-stairs-10-sets-individual-beads-nylon-nienhuis-montessori-usa/product/4281/ Nienhuis] | |} | ||
</div> | |||
<div class="buyElement"> | |||
{| class="buytable sortable" | |||
|- | |||
!colspan="2"|Multiplication Bead Bar Layout Box (different number of each) | |||
|- | |||
! Store !! Price | |||
|- | |||
|[https://bruinsmontessori.com/products/mathematics/multiplication-bead-bar-box.html Bruins]<br><span class="comment">100 ten bars</span> | |||
|$345.00 | |||
|- | |||
|[https://www.nienhuis.com/us/en/multiplication-bead-bar-layout-box-individual-beads-nylon-nienhuis-montessori-usa/product/4112/ Nienhuis]<br><span class="comment">nylon beads</span> | |||
|$376.10 | |||
|- | |||
|[https://www.nienhuis.com/us/en/multiplication-bead-bar-layout-box-individual-beads-glass-nienhuis-montessori-usa/product/4490/ Nienhuis]<br><span class="comment">glass beads</span> | |||
|$448.60 | |||
|- | |||
|[https://www.wintergreen.ca/mathematics-1/nienhuis-multiplication-bead-bar-layout-box-individual-beads-glass-0280g0 Wintergreen]<br><span class="comment">glass beads</span> | |||
|$589.95 | |||
|- | |||
|[https://www.wintergreen.ca/mathematics-1/nienhuis-multiplication-bead-bar-layout-box-individual-beads-nylon-0280m0 Wintergreen]<br><span class="comment">nylon beads</span> | |||
|$499.95 | |||
|} | |||
</div> | |||
<div class="buyElement"> | |||
{| class="buytable sortable" | |||
|- | |||
!colspan="2"|Checkerboard Bead Bar Box (20 of each bar) | |||
|- | |||
! Store !! Price | |||
|- | |||
|[https://www.adenamontessori.com/ius/details.php?did=1053 Adena] | |||
|$38.92 | |||
|- | |||
|[https://montessoriresources.com/checker-board-beads-0138m0.html Albanesi] | |||
|$182.00 | |||
|- | |||
|[https://www.alisonsmontessori.com/Checker_Board_Beads_p/m71.htm Alison's] | |||
|$71.66 | |||
|- | |||
|[https://www.alisonsmontessori.com/Checker_Board_Beads_Premium_Quality_p/pm64.htm Alison's]<br><span class="comment">premium</span> | |||
|$90.00 | |||
|- | |||
|[https://bruinsmontessori.com/products/mathematics/checker-board-beads.html Bruins] | |||
|$140.00 | |||
|- | |||
|[https://usa.montessorimaterials.com/products/checker-board-beads-box E & O] | |||
|$84.60 | |||
|- | |||
|[http://www.montessoriequipment.com/Checker-Board-Beads-p/m.153.2.htm IFIT] | |||
|$37.00 | |||
|- | |||
|[https://www.kidadvance.com/checker-board-beads.html Kid Advance] | |||
|$43.99 | |||
|- | |||
|[https://www.leaderjoyusa.com/Montessori/Montessori%20mathematics/checker-board-beads.html Leader Joy] | |||
|$45.95 | |||
|- | |||
|[https://montessorioutlet.com/authentic-montessori/mathematics/checker-board-beads.html Montessori Outlet] | |||
|$47.95 | |||
|- | |||
|[https://www.nienhuis.com/us/en/checker-board-beads-individual-beads-nylon-nienhuis-montessori-usa/product/4189/ Nienhuis]<br><span class="comment">nylon beads</span> | |||
|$174.60 | |||
|- | |||
|[https://www.nienhuis.com/us/en/checker-board-beads-individual-beads-glass-nienhuis-montessori-usa/product/5054/ Nienhuis]<br><span class="comment">glass beads</span> | |||
|$185.30 | |||
|- | |||
|[https://www.thinkamajigs.com/checkerboard-bars/ Thinkamajigs] | |||
|$52.95 | |||
|- | |||
|[https://www.wintergreen.ca/mathematics-1/nienhuis-checker-board-beads-individual-beads-glass-0138g0 Wintergreen]<br><span class="comment">glass bead</span> | |||
|$239.95 | |||
|- | |||
|[https://www.wintergreen.ca/mathematics-1/nienhuis-checker-board-beads-individual-beads-nylon-0138m0 Wintergreen]<br><span class="comment">nylon beads</span> | |||
|$224.95 | |||
|- | |||
|[https://www.wintergreen.ca/mathematics-1/checkerboard-beads-economy-340700 Wintergreen] | |||
|$47.95 | |||
|} | |||
</div> | |||
<div class="buyElement"> | |||
{| class="buytable sortable" | |||
|- | |||
!colspan="2"|10 of each bead bar (no 10 bars) | |||
|- | |||
! Store !! Price | |||
|- | |||
|[https://www.affordmontessori.com/index.php/multiplication-bead-box-10-each.html Affordable Montessori]<br><span class="comment">has ten bars</span> | |||
|$45.00 | |||
|- | |||
|[https://www.alisonsmontessori.com/Decanomial_Bead_Box_10_in_a_Box_p/m25.htm Alison's] | |||
|$36.75 | |||
|- | |||
|[https://bruinsmontessori.com/products/mathematics/multiplication-bead-box.html Bruins] | |||
|$104.00 | |||
|- | |||
|[https://www.montessoriequipment.com/Checker-Board-Beads-p/m.153.2.htm IFIT] | |||
|$37.00 | |||
|- | |||
|[http://www.montessoriequipment.com/Checker-Board-Beads-p/m.245.1.htm IFIT] | |||
|$24.00 | |||
|- | |||
|[https://www.nienhuis.com/us/en/colored-bead-stairs-10-sets-individual-beads-nylon-nienhuis-montessori-usa/product/4281/ Nienhuis]<br><span class="comment">nylon beads</span> | |||
|$92.35 | |||
|- | |||
|[https://www.nienhuis.com/us/en/colored-bead-stairs-10-sets-individual-beads-glass-nienhuis-montessori-usa/product/5007/ Nienhuis]<br><span class="comment">glass beads</span> | |||
|$116.00 | |||
|} | |||
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</div> | </div> | ||
==Further Reading== | ==Further Reading== | ||
Latest revision as of 20:17, 26 January 2022
| Multiplication With Bead Bars | |
|---|---|
| Math - Memory Work | |
 | |
| Level | Primary |
| Age | 5+ |
This activity helps to teach the child multiplication facts.
Presentation
- Carry the material to a large mat. Place the box of bead bars in the upper right corner.
- For the first set of problems choose multiplication by 3, 4, 6, 7, 8, or 9. (We've used 7 here.) Take out one 7 bar and lay it horizontally as shown. Say, "This is seven one time. Seven times one."
- Use the pointer to count the beads.
- Lay the answer vertically beneath the first bead bar.
- Take out two 7 bars and lay them as shown. Say, "This is seven two times. Seven times two." Use the pointer to count until you reach ten. Leave the pointer in place.
- Take a ten bar from the box and lay it as shown. Continue counting the rest of the beads starting over from one to see how many beads are remaining.
- step seven
- step eight
- step nine
- Put all the beads back in the box. Repeat the process with another number.
- When doing multiplication of tens there won't be enough bead bars in the set to do all the problems. Do the first few and then reuse the bead bars for the next few. Allow the child to discover on her own the pattern in multiplication by ten.
Points of Interest
Control of Error
Variations and Extensions
Material
Make Your Own
Not counting the cost of wire or a box, you would need to find beads for less than 2¢ a piece to be a better deal than the lowest cost pre-made option.
To make a set with 55 of each bead bar you will need a total of 3025 beads (55 red, 110 green, 165 peach, 220 yellow, 275 turquoise, 330 lavender, 385 white, 440 brown, 495 dark blue, and 550 gold). I've included the approximate price per bead for each: (¢).
6mm Faceted Round Plastic Beads
- Bead Bee (color mix) $4.98/1000 (0.498¢)
- Bead Bee (pick colors) $4.98/1000 (0.498¢)
- Beads in Bulk (color mix) $14.87/4018 (0.37¢)
- Beads in Bulk (pick colors) $10.88-$14.51/4018 (0.27¢-0.36¢)
- Consumer Crafts (color mix) $1.17/480 (0.244¢)
- Consumer Crafts (color mix) $2.97/1500 (0.198¢)
- Consumer Crafts (pick colors) $1.17/480 (0.244¢)
- Craft Kits and Supplies (color mix) $3.99/1000 (0.399¢)
- Craft Kits and Supplies (pick colors) $3.99/1000 (0.399¢)
- The Crafts Outlet (pick colors) $1.10/200 (0.55¢), $5.99/1000 (0.599¢)
- Shipwreck Beads (color mix) $2.49/500 (0.498¢), $3.75/1000 (0.375¢), $11.50/4000 (0.2875¢), $33.00/12,000 (0.275¢)
- Shipwreck Beads (pick colors) $1.97-$2.50/500 (0.394¢-0.5¢), $2.90-$3.65/1000 (0.29¢-0.365¢), $11.50-$13.80/5000 (0.23¢-0.276¢), $31.80-$41.00/15,000 (0.212¢-0.273¢)
6mm Smooth Round Plastic Beads
- Jann's Netcraft (pick colors) $6.99/1000 (0.699¢)
- Mud Hole (pick colors) $1.87/100 (1.87¢)
- Shipwreck Beads (color mix) $2.25/500 (0.45¢), $3.00/1000 (0.3¢), $11.00/4500 (0.24¢), $30.00/13,500 (0.22¢)
- Shipwreck Beads (pick colors) $2.89-$3.15/126 (2.29¢-2.5¢), $8.35-$9.25/504 (1.65¢-1.83¢), $13.47-$14.75/1008 (1.34¢-1.46¢), $38.30-$42.55/3024 (1.26¢-1.41¢)
- Shipwreck Beads (pick colors) $3.39/200 (1.695¢), $7.95/600 (1.325¢), $9.95/1000 (0.995¢)
Where to Buy
Prices and links checked: 23 January 2022
(Amazon/Bookshop are affiliate links, which help cover costs of running the site.)
| Decanomial Bead Bar Box (55 of each) | |
|---|---|
| Store | Price |
| Adena | $108.88 |
| Affordable Montessori | $130.00 |
| Alison's | $104.73 |
| Bruins | $312.00 |
| E & O | $175.50 |
| IFIT | $115.00 |
| Kid Advance | $115.99 |
| Leader Joy | $118.95 |
| Montessori Outlet | $123.95 |
| Nienhuis nylon beads |
$345.50 |
| Nienhuis glass beads |
$410.50 |
| Thinkamajigs | $139.95 |
| Wintergreen | $539.95 |
| Wintergreen nylon beads |
$459.95 |
| Wintergreen quantity unclear |
$145.95 |
| Multiplication Bead Bar Layout Box (different number of each) | |
|---|---|
| Store | Price |
| Bruins 100 ten bars |
$345.00 |
| Nienhuis nylon beads |
$376.10 |
| Nienhuis glass beads |
$448.60 |
| Wintergreen glass beads |
$589.95 |
| Wintergreen nylon beads |
$499.95 |
| Checkerboard Bead Bar Box (20 of each bar) | |
|---|---|
| Store | Price |
| Adena | $38.92 |
| Albanesi | $182.00 |
| Alison's | $71.66 |
| Alison's premium |
$90.00 |
| Bruins | $140.00 |
| E & O | $84.60 |
| IFIT | $37.00 |
| Kid Advance | $43.99 |
| Leader Joy | $45.95 |
| Montessori Outlet | $47.95 |
| Nienhuis nylon beads |
$174.60 |
| Nienhuis glass beads |
$185.30 |
| Thinkamajigs | $52.95 |
| Wintergreen glass bead |
$239.95 |
| Wintergreen nylon beads |
$224.95 |
| Wintergreen | $47.95 |
Further Reading
- Teaching Montessori in the Home: The School Years by Elizabeth G. Hainstock, page 71
