Subtraction With Number Rods: Difference between revisions

From Montessori Album
(price check update)
 
(19 intermediate revisions by 2 users not shown)
Line 9: Line 9:
| Materials    = number rods <br> numeral cards 1-10 <br> red rod #5
| Materials    = number rods <br> numeral cards 1-10 <br> red rod #5
}}
}}
This activity teaches the child...
Look, I think we should all just admit that this material is not great for teaching subtraction. Teach the concept some other way. This is just confusing.
== Presentations ==
== Presentations ==
# step one
# step one
Line 37: Line 37:
== Material ==
== Material ==
===Where to Buy===
===Where to Buy===
<div style="float: left; width: 40%">
[[Category:Where to Buy]]
'''Number Rods'''<br>
Prices and links checked: 23 January 2022
[http://adenamontessori.us/details.php?did=34 Adena] $32.07<br>
<div class="buyGrid">
[http://www.affordmontessori.com/product_details.asp?productcode=%27MA01A%27 Affordable Montessori] $59.00 (regular)<br>
<div class="buyElement">
[http://www.affordmontessori.com/product_details.asp?productcode=%27MA01P%27 Affordable Montessori] $99.00 (premium)<br>
{| class="buytable sortable"
[http://www.montessoriresources.com/Number-Rods-P471C7.aspx Albanesi] $315.00<br>
|-
[http://www.alisonsmontessori.com/Blue_and_Red_Number_Rods_p/m01.htm Alison's] $50.00 (with number cards)<br>
!colspan="2"|Number Rods
[http://www.bruinsmontessori.com/itemdetails.php?item_id=42 Bruins] $140.00<br>
|-
[http://www.cabdevmontessori.com/product.php?productid=16711&cat=253&page=1 Cabdev] $154.00<br>
! Store !! Price
[http://www.calibermontessori.com/catalog/item/3528880/3218639.htm Caliber] $32.00<br>
|-
[http://www.montessoribuy.com/cartdetails.asp?id=HTM0190 Creative Learning] $39.95<br>
|[https://adenamontessori.com/ius/details.php?did=34 Adena]
[http://www.montessorimaterials.com/content/number-rods E & O] $180.00<br>
|$58.95
[http://www.grandpas.ca/product_info.php/cPath/5/products_id/150?osCsid=83c822997e144b01a8146bf83ec2873e Grandpas] $45.00<br>
|-
[http://shop.hellowood.com/Red-Blue-Rods-M7.htm Hello Wood] $181.00 (red and blue)<br>
|[https://www.affordmontessori.com/index.php/montessori-material/mathematics/number-rods-regular.html Affordable Montessori]
[http://shop.hellowood.com/Red-Natural-Rods-M71.htm Hello Wood] $166.00 (red and unpainted wood)<br>
|$70.00
[http://www.julianagroup.com/mathematics.lasso?page=detail&Category=&SubCategory=Mathematics&NewItem=&Overstock=&Description=&skip=0 Juliana] $289.80<br>
|-
[http://www.kidadvance.com/Store/ProductDetails.asp?pid=277&catid=4 Kid Advance] $39.99<br>
|[https://www.alisonsmontessori.com/Blue_and_Red_Number_Rods_p/m01.htm Alison's]<br><span class="comment">with number cards</span>
[http://www.montessoriconcepts.com/products.php?cat=Math&num=3 Montessori Concepts] $36.00<br>
|$49.61
[http://www.montessoriland.com/site/1270021/product/ID_%202006 Montessori Land] $50.00<br>
|-
[http://www.montessorioutlet.com/cgi-bin/item/510500010/5105/Montessori%2DOutlet%2DNumerical%2DRods%2D Montessori Outlet] $42.95<br>
|[https://bruinsmontessori.com/number-rods.html Bruins]
[http://www.nienhuis.com/number-rods-1-2.html Nienhuis] $185.50<br>
|$180.00
[https://www.thinkamajigs.com/number-rods/ Thinkamajigs] $64.95<br>
|-
 
|[https://usa.montessorimaterials.com/products/number-rods E & O]
</div><div style="float: left; width: 30%">
|$102.60
'''Stand'''<br>
|-
[http://adenamontessori.us/details.php?did=35 Adena] $18.66<br>
|[https://www.montessoriequipment.com/IFIT-Montessori-Numerical-Rods-p/mat-004.htm IFIT]
[http://www.affordmontessori.com/product_details.asp?productcode=%27MA01B%27 Affordable Montessori] $39.00<br>
|$60.00
[http://www.alisonsmontessori.com/Stand_for_Red_Rods_and_Number_Rods_p/f03.htm Alison's] $28.00<br>
|-
[http://www.alisonsmontessori.com/Stand_for_Red_Rods_and_Number_Rods_Premium_Qualit_p/pf07.htm Alison's] $50.00 (premium)<br>
|[https://www.kidadvance.com/numerical-rods.html Kid Advance]
[http://www.cabdevmontessori.com/product.php?productid=16977&cat=253&page=1 Cabdev] $40.00<br>
|$59.99
[http://www.montessoribuy.com/cartdetails.asp?id=HTM0191 Creative Learning] $22.95<br>
|-
[http://www.kidadvance.com/Store/ProductDetails.asp?Pid=85 Kid Advance] $24.99<br>
|[https://www.leaderjoyusa.com/Montessori/Montessori%20mathematics/premium-numerical-rods.html Leader Joy]
[http://www.montessoriland.com/site/1270021/product/ID_%208001 Montessori Land] $37.00<br>
|$77.95
[https://www.thinkamajigs.com/rods-rack/ Thinkmajigs] $36.95<br>
|-
|[https://www.thematerialscompany.com/collections/mathematics/products/number-rods-red-blue Materials Co. of Boston]
|$125.00
|-
|[http://www.montessoriconcepts.com/store/p2/NUMERICAL_RODS_%28MA001%29.html Montessori Concepts]
|$78.00
|-
|[https://montessorioutlet.com/numerical-rods.html Montessori Outlet]
|$63.95
|-
|[https://www.nienhuis.com/us/en/number-rods-nienhuis-montessori-usa/product/4187/ Nienhuis]
|$188.80
|-
|[https://www.thinkamajigs.com/number-rods/ Thinkamajigs]
|$72.95
|}
</div>
<div class="buyElement">
{| class="buytable sortable"
|-
!colspan="2"|Stand
|-
! Store !! Price
|-
|[https://adenamontessori.com/ius/details.php?did=35 Adena]
|$32.99
|-
|[https://www.affordmontessori.com/index.php/stand-for-red-rods.html Affordable Montessori]
|$42.00
|-
|[https://www.alisonsmontessori.com/Stand_for_Red_Rods_and_Number_Rods_p/f03.htm Alison's]
|$32.41
|-
|[https://www.alisonsmontessori.com/Red_Rod_Stand_Premium_Quality_p/pf07.htm Alison's]
|$52.50
|-
|[https://bruinsmontessori.com/products/sensorial/stand-for-red-rods-number-rods-green-rods.html Bruins]
|$60.00
|-
|[https://www.montessoriequipment.com/IFIT-Montessori-Stand-for-Red-Numerical-Rods-p/sen-004.htm IFIT]
|$30.00
|-
|[https://www.kidadvance.com/stand-for-numerical-rods.html Kid Advance]
|$32.99
|-
|[https://www.leaderjoyusa.com/Montessori/Montessori%20mathematics/stand-for-numerical-rods.html Leader Joy]
|$33.95
|-
|[https://www.thematerialscompany.com/collections/sensorial/products/stand-hold-red-rods-or-number-rods Material Co. of Boston]
|$49.00
|-
|[http://www.montessoriconcepts.com/store/p10/STAND_FOR_NUMBER%2FRED_RODS_%28MA003%29__%28rods_sold_separately%29.html Montessori Concepts]
|$34.00
|-
|[https://montessorioutlet.com/authentic-montessori/mathematics/stands-for-long-red-rods-numerical-rods.html Montessori Outlet]
|$35.95
|-
|[https://www.pinkmontessori.com/collections/mathematics-1/products/rack-for-red-rods Pink Montessori]
|$26.90
|-
|[https://www.thinkamajigs.com/rods-rack/ Thinkamajigs]
|$42.95
|}
</div>
<div class="buyElement">
{| class="buytable sortable"
|-
!colspan="2"|Number Cards
|-
! Store !! Price
|-
|[https://adenamontessori.com/ius/details.php?did=1391 Adena]
|$12.55
|-
|[https://www.affordmontessori.com/index.php/montessori-material/mathematics/wooden-numbers-for-number-rods-1-10-with-box.html Affordable Montessori]
|$13.00
|-
|[https://www.alisonsmontessori.com/Number_Cards_for_the_Number_Rods_p/m01.a.htm Alison's]
|$10.00
|-
|[https://www.alisonsmontessori.com/Wooden_Cards_for_the_Red_and_Blue_Number_Rods_p/pm06.htm Alison's]
|$24.00
|-
|[https://www.alisonsmontessori.com/Printed_Numerals_1_10_Premium_Quality_German_Pr_p/pm06.g.htm Alison's]
|$18.00
|-
|[https://bruinsmontessori.com/products/mathematics/printed-numbers-with-box.html Bruins]
|$27.00
|-
|[https://usa.montessorimaterials.com/products/numerals-number-rods E & O]
|$19.80
|-
|[https://shop.hellowood.com/Numbers-Box-for-Rods-M8.htm Hello Wood]
|$33.00
|-
|[https://www.montessoriequipment.com/IFIT-Montessori-Number-Cards-For-Numerical-Rods-p/m.104.3.htm IFIT]
|$11.00
|-
|[https://www.kidadvance.com/printed-numeral-wooden-cards-with-box.html Kid Advance]
|$12.99
|-
|[https://www.leaderjoyusa.com/Montessori/Montessori%20mathematics/numeral-card.html Leader Joy]
|$18.95
|-
|[https://www.thematerialscompany.com/collections/mathematics/products/figures-on-wood-print Materials Co. of Boston]
|$10.00
|-
|[http://www.montessoriconcepts.com/store/p9/PRINTED_NUMBERS_%28MA001-2%29.html Montessori Concepts]
|$19.00
|-
|[https://montessorioutlet.com/authentic-montessori/mathematics/printed-numerals-usa-print.html Montessori Outlet]
|$5.95
|-
|[https://montessorioutlet.com/authentic-montessori/mathematics/printed-numerals-cursive.html Montessori Outlet]
|$5.95
|-
|[https://montessorioutlet.com/authentic-montessori/mathematics/printed-numerals-box.html &emsp;Montessori Outlet]<br><span class="comment">box</span>
|$5.95
|-
|[https://www.nienhuis.com/us/en/printed-numerals-us-version-nienhuis-montessori-usa/product/4399/ Nienhuis]
|$13.20
|-
|[https://www.nienhuis.com/us/en/cut-out-numerals-/-printed-numerals-box-nienhuis-montessori-usa/product/4699/ &emsp;Nienhuis]<br><span class="comment">box</span>
|$18.15
|-
|[https://www.pinkmontessori.com/collections/mathematics-1/products/printed-numerals-cards-for-numerical-rods Pink Montessori]
|$12.50
|-
|[https://www.thinkamajigs.com/number-rod-cards/ Thinkamajigs]
|$13.95
|}
</div>
<div class="buyElement">
{| class="buytable sortable"
|-
!colspan="2"|Table-top Number Rods (2 sets of little rods)
|-
! Store !! Price
|-
|[https://adenamontessori.com/ius/details.php?did=190 Adena]
|$30.93
|-
|[https://www.affordmontessori.com/index.php/montessori-material/mathematics/small-number-rods-set-of-2.html Affordable Montessori]
|$29.00
|-
|[https://www.alisonsmontessori.com/Small_Numeric_Rods_Premium_Quality_p/pm45.htm Alison's]
|$80.00
|-
|[https://www.alisonsmontessori.com/Table_Top_Number_Rods_p/m05.htm Alison's]
|$30.87
|-
|[https://bruinsmontessori.com/products/mathematics/2-sets-of-number-rods-small-with-box-tiles.html Bruins]
|$110.00
|-
|[https://usa.montessorimaterials.com/products/small-number-rods E & O]
|$46.80
|-
|[https://www.montessoriequipment.com/IFIT-Montessori-Small-Numerical-Rods-p/mat-005.htm IFIT]
|$28.00
|-
|[https://www.kidadvance.com/small-numerical-rods.html Kid Advance]
|$34.99
|-
|[https://www.leaderjoyusa.com/Montessori/Montessori%20mathematics/small-numerical-rods.html Leader Joy]
|$34.95
|-
|[https://www.thematerialscompany.com/collections/mathematics/products/small-number-rods-with-tiles-and-box Materials Co. of Boston]
|$85.00
|-
|[http://www.montessoriconcepts.com/store/p4/SMALL_NUMBER_RODS%28MA002%29.html Montessori Concepts]
|$38.00
|-
|[https://montessorioutlet.com/authentic-montessori/mathematics/small-numerical-rods.html Montessori Outlet]
|$36.95
|-
|[https://www.nienhuis.com/us/en/small-numerical-rods-nienhuis-montessori-usa/product/4973/ Nienhuis]
|$124.85
|-
|[https://www.pinkmontessori.com/collections/mathematics-1/products/small-numerical-rods Pink Montessori]
|$24.90
|-
|[https://www.thinkamajigs.com/small-number-rods/ Thinkamajigs]
|$29.95
|}
</div>
<div class="buyElement">
{| class="buytable sortable"
|-
!colspan="2"|Half-size Number Rods (5cm-50cm)
|-
! Store !! Price
|-
|[https://www.affordmontessori.com/index.php/montessori-material/mathematics/mini-number-rods.html Affordable Montessori]
|$39.00
|-
|[https://www.montessoriequipment.com/IFIT-Montessori-Numerical-Rods-p/m.247.1.htm IFIT]
|$30.00
|-
|[https://www.pinkmontessori.com/products/family-set-number-rods Pink Montessori]
|$19.50
|}
</div>
</div>
</div>

Latest revision as of 15:02, 23 January 2022

Subtraction With Number Rods
Math - Memory Work
Sub with rods 9.JPG
LevelPrimary
Age4 - 5
Materialsnumber rods
numeral cards 1-10
red rod #5

Look, I think we should all just admit that this material is not great for teaching subtraction. Teach the concept some other way. This is just confusing.

Presentations

  1. step one
    Sub with rods 1.JPG
  2. step two
    Sub with rods 2.JPG
  3. step three
    Sub with rods 3.JPG
  4. step four
    Sub with rods 4.JPG
  5. step five
    Sub with rods 5.JPG
  6. step six
    Sub with rods 6.JPG Sub with rods 7.JPG
  7. step seven
    Sub with rods 8.JPG
  8. step eight
    Sub with rods 9.JPG
  9. step nine
    Sub with rods 10.JPG

Points of Interest

Control of Error

Variations and Extensions

Material

Where to Buy

Prices and links checked: 23 January 2022

Number Rods
Store Price
Adena $58.95
Affordable Montessori $70.00
Alison's
with number cards 		$49.61
Bruins $180.00
E & O $102.60
IFIT $60.00
Kid Advance $59.99
Leader Joy $77.95
Materials Co. of Boston $125.00
Montessori Concepts $78.00
Montessori Outlet $63.95
Nienhuis $188.80
Thinkamajigs $72.95
Stand
Store Price
Adena $32.99
Affordable Montessori $42.00
Alison's $32.41
Alison's $52.50
Bruins $60.00
IFIT $30.00
Kid Advance $32.99
Leader Joy $33.95
Material Co. of Boston $49.00
Montessori Concepts $34.00
Montessori Outlet $35.95
Pink Montessori $26.90
Thinkamajigs $42.95
Number Cards
Store Price
Adena $12.55
Affordable Montessori $13.00
Alison's $10.00
Alison's $24.00
Alison's $18.00
Bruins $27.00
E & O $19.80
Hello Wood $33.00
IFIT $11.00
Kid Advance $12.99
Leader Joy $18.95
Materials Co. of Boston $10.00
Montessori Concepts $19.00
Montessori Outlet $5.95
Montessori Outlet $5.95
 Montessori Outlet
box 		$5.95
Nienhuis $13.20
 Nienhuis
box 		$18.15
Pink Montessori $12.50
Thinkamajigs $13.95
Table-top Number Rods (2 sets of little rods)
Store Price
Adena $30.93
Affordable Montessori $29.00
Alison's $80.00
Alison's $30.87
Bruins $110.00
E & O $46.80
IFIT $28.00
Kid Advance $34.99
Leader Joy $34.95
Materials Co. of Boston $85.00
Montessori Concepts $38.00
Montessori Outlet $36.95
Nienhuis $124.85
Pink Montessori $24.90
Thinkamajigs $29.95
Half-size Number Rods (5cm-50cm)
Store Price
Affordable Montessori $39.00
IFIT $30.00
Pink Montessori $19.50
Retrieved from "https://www.montessorialbum.com/montessori/index.php?title=Subtraction_With_Number_Rods&oldid=22076"