Multiplication With Bead Bars: Difference between revisions
From Montessori Album
(price check update) |
|||
| Line 77: | Line 77: | ||
{| class="buytable sortable" | {| class="buytable sortable" | ||
|- | |- | ||
!colspan="2"| | !colspan="2"|Decanomial Bead Bar Box (55 of each) | ||
|- | |- | ||
! Store !! Price | ! Store !! Price | ||
| Line 86: | Line 86: | ||
|[https://www.affordmontessori.com/index.php/montessori-material/mathematics/decanomial-bead-bar-box.html Affordable Montessori] | |[https://www.affordmontessori.com/index.php/montessori-material/mathematics/decanomial-bead-bar-box.html Affordable Montessori] | ||
|$129.00 | |$129.00 | ||
|- | |- | ||
|[https://montessoriresources.com/colored-bead-bars-for-decanomial-with-box-gz.html Albanesi] | |[https://montessoriresources.com/colored-bead-bars-for-decanomial-with-box-gz.html Albanesi] | ||
| Line 98: | Line 95: | ||
|[https://bruinsmontessori.com/products/mathematics/decanomial-bead-bar-box.html Bruins] | |[https://bruinsmontessori.com/products/mathematics/decanomial-bead-bar-box.html Bruins] | ||
|$302.00 | |$302.00 | ||
|- | |- | ||
|[https://usa.montessorimaterials.com/products/decanomial-bead-bar-box E & O] | |[https://usa.montessorimaterials.com/products/decanomial-bead-bar-box E & O] | ||
|$175.50 | |$175.50 | ||
|- | |||
|[http://www.montessoriequipment.com/Decanomial-Bead-Bar-p/m.150.1.htm IFIT] | |||
|$115.00 | |||
|- | |- | ||
|[https://www.kidadvance.com/bead-decanomial.html Kid Advance] | |[https://www.kidadvance.com/bead-decanomial.html Kid Advance] | ||
| Line 119: | Line 116: | ||
|[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.nienhuis.com/us/en/decanomial-bead-bar-box-individual-beads-glass-nienhuis-montessori-usa/product/4123/ Nienhuis]<br><span class="comment">glass beads</span> | ||
|$398.50 | |$398.50 | ||
|- | |- | ||
|[https://www.thinkamajigs.com/bead-decanomial/ Thinkamajigs] | |[https://www.thinkamajigs.com/bead-decanomial/ Thinkamajigs] | ||
| Line 134: | Line 125: | ||
|[https://www.wintergreen.ca/mathematics-1/nienhuis-decanomial-bead-bar-box-individual-beads-nylon-0190m0 Wintergreen]<br><span class="comment">nylon beads</span> | |[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 | |$459.95 | ||
|- | |||
|[https://www.wintergreen.ca/mathematics-1/decanomial-bead-bar-box-750300 Wintergreen]<br><span class="comment">quantity unclear</span> | |||
|$88.00 | |||
|} | |||
</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> | |||
|$340.00 | |||
|- | |||
|[http://www.montessoriequipment.com/Multiplication-Bead-Bar-Layout-Box-p/m.181.1.htm IFIT] | |||
|$120.00 | |||
|- | |||
|[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> | |||
|$435.50 | |||
|- | |- | ||
|[https://www.wintergreen.ca/mathematics-1/nienhuis-multiplication-bead-bar-layout-box-individual-beads-glass-0280g0 Wintergreen]<br><span class="comment">glass beads</span> | |[https://www.wintergreen.ca/mathematics-1/nienhuis-multiplication-bead-bar-layout-box-individual-beads-glass-0280g0 Wintergreen]<br><span class="comment">glass beads</span> | ||
| Line 143: | Line 157: | ||
|[https://www.wintergreen.ca/mathematics-1/multiplication-bead-bar-layout-box-702500 Wintergreen]<br><span class="comment">110 ten bars</span> | |[https://www.wintergreen.ca/mathematics-1/multiplication-bead-bar-layout-box-702500 Wintergreen]<br><span class="comment">110 ten bars</span> | ||
|$112.00 | |$112.00 | ||
|} | |} | ||
</div> | </div> | ||
| Line 151: | Line 162: | ||
{| class="buytable sortable" | {| class="buytable sortable" | ||
|- | |- | ||
!colspan="2"| | !colspan="2"|Checkerboard Bead Bar Box (20 of each bar) | ||
|- | |- | ||
! Store !! Price | ! Store !! Price | ||
| Line 157: | Line 168: | ||
|[https://www.adenamontessori.com/ius/details.php?did=1053 Adena] | |[https://www.adenamontessori.com/ius/details.php?did=1053 Adena] | ||
|$36.92 | |$36.92 | ||
|- | |||
|[https://montessoriresources.com/checker-board-beads-0138m0.html Albanesi] | |||
|$172.00 | |||
|- | |- | ||
|[https://www.alisonsmontessori.com/Checker_Board_Beads_p/m71.htm Alison's] | |[https://www.alisonsmontessori.com/Checker_Board_Beads_p/m71.htm Alison's] | ||
| Line 169: | Line 183: | ||
|[https://usa.montessorimaterials.com/products/checker-board-beads-box E & O] | |[https://usa.montessorimaterials.com/products/checker-board-beads-box E & O] | ||
|$71.10 | |$71.10 | ||
|- | |||
|[http://www.montessoriequipment.com/Checker-Board-Beads-p/m.153.2.htm IFIT] | |||
|$46.00 | |||
|- | |- | ||
|[https://www.kidadvance.com/checker-board-beads.html Kid Advance] | |[https://www.kidadvance.com/checker-board-beads.html Kid Advance] | ||
| Line 197: | Line 214: | ||
|$32.00 | |$32.00 | ||
|} | |} | ||
</div> | </div> | ||
<div class="buyElement"> | <div class="buyElement"> | ||
| Line 217: | Line 230: | ||
|[https://bruinsmontessori.com/products/mathematics/multiplication-bead-box.html Bruins] | |[https://bruinsmontessori.com/products/mathematics/multiplication-bead-box.html Bruins] | ||
|$99.00 | |$99.00 | ||
|- | |||
|[http://www.montessoriequipment.com/Checker-Board-Beads-p/m.153.4.htm IFIT] | |||
|$35.00 | |||
|- | |||
|[http://www.montessoriequipment.com/Checker-Board-Beads-p/m.245.1.htm IFIT] | |||
|$30.00 | |||
|- | |- | ||
|[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> | |[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> | ||
| Line 224: | Line 243: | ||
|$112.60 | |$112.60 | ||
|} | |} | ||
{{#widget:Affiliate|link=ServiceVersion=20070822&OneJS=1&Operation=GetAdHtml&MarketPlace=US&source=ac&ref=tf_til&ad_type=product_link&tracking_id=montessoria03-20&marketplace=amazon®ion=US&placement=B0070XZ064&asins=B0070XZ064&linkId=3cb5dcef368c3aab16de1256dd7aea14&show_border=false&link_opens_in_new_window=true&price_color=333333&title_color=0066c0&bg_color=ffffff}} | |||
{{#widget:Affiliate|link=ServiceVersion=20070822&OneJS=1&Operation=GetAdHtml&MarketPlace=US&source=ac&ref=tf_til&ad_type=product_link&tracking_id=montessoria03-20&marketplace=amazon®ion=US&placement=B01LXT8HA1&asins=B01LXT8HA1&linkId=1d6b9440a416cb3f0dcaf84b1e1653e4&show_border=false&link_opens_in_new_window=true&price_color=333333&title_color=0066c0&bg_color=ffffff}} | |||
</div> | </div> | ||
</div> | </div> | ||
Revision as of 15:13, 12 August 2020
| 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: 05 August 2020
| Decanomial Bead Bar Box (55 of each) | |
|---|---|
| Store | Price |
| Adena | $105.92 |
| Affordable Montessori | $129.00 |
| Albanesi | $340.00 |
| Alison's | $99.75 |
| Bruins | $302.00 |
| E & O | $175.50 |
| IFIT | $115.00 |
| Kid Advance | $109.99 |
| Leader Joy | $118.95 |
| Montessori Outlet | $123.95 |
| Nienhuis nylon beads |
$345.50 |
| Nienhuis glass beads |
$398.50 |
| Thinkamajigs | $129.95 |
| Wintergreen | $539.95 |
| Wintergreen nylon beads |
$459.95 |
| Wintergreen quantity unclear |
$88.00 |
| Multiplication Bead Bar Layout Box (different number of each) | |
|---|---|
| Store | Price |
| Bruins 100 ten bars |
$340.00 |
| IFIT | $120.00 |
| Nienhuis nylon beads |
$376.10 |
| Nienhuis glass beads |
$435.50 |
| Wintergreen glass beads |
$589.95 |
| Wintergreen nylon beads |
$499.95 |
| Wintergreen 110 ten bars |
$112.00 |
| Checkerboard Bead Bar Box (20 of each bar) | |
|---|---|
| Store | Price |
| Adena | $36.92 |
| Albanesi | $172.00 |
| Alison's | $68.25 |
| Alison's premium |
$85.00 |
| Bruins | $135.00 |
| E & O | $71.10 |
| IFIT | $46.00 |
| Kid Advance | $39.99 |
| Leader Joy | $45.95 |
| Montessori Outlet | $47.95 |
| Nienhuis nylon beads |
$169.50 |
| Nienhuis glass beads |
$179.90 |
| Thinkamajigs | $49.95 |
| Wintergreen glass bead |
$239.95 |
| Wintergreen nylon beads |
$224.95 |
| Wintergreen | $32.00 |
Further Reading
- Teaching Montessori in the Home: The School Years by Elizabeth G. Hainstock, page 71
