Addition Strip Board, Montessori Addition Fact Materials

The Strip Boards are a Montessori Addition and Subtraction fact memorization material.  If you do a search you will find tons of lessons for them.  I bought our Addition and Subtraction Strip Boards from here, and they are beautiful, but if I were to do it over again, I would probably make them.

I have mentioned before that we started using these boards early as a fun game while learning the basic concept of Addition and Subtraction and this is not a recommendation, but simply was a lot of fun and worked well for Xander.

We have worked with the Addition Strip Board along with the Addition Charts. 

We changed things up a bit with our Addition Booklet (you can get them free from here).  I took our booklet and laid the sheets out on the table.  Xander picked random equations from our Equations and Sums Box (from here), and used the board to solve the problem.  Then he found the equation on his sheets, and recorded the sum.  In turn he created the problem in reverse, and recorded that duplicate sum.  He continued until he had completed the sheets from his booklet.  He had fun doing it this way.

The equations and sums boxes are wonderful to have, but if not a printable version works very well.

 Xander out of the blue wanted to know how many squares were on the board?  So we pulled off the road for a moment to talk about how he would calculate the number of squares.  He started by counting the squares one by one, and row by row. He quickly realized this was not fun so he discovered that if he counted down the side, he could determine how many "times" to take the 18 squares. 

Then he used his calculator to find the area.  This was a fun detour.

This is essentially starts as a search for "10" lesson.  As he placed the Strips on the board and he recorded the equations and in doing so, very quickly noted the emerging pattern.

 Then he eliminated duplicate equations crossing them off in his notes.

Here he is using Chart 1. covering all duplicate equations we used our sum chips and flipped them over.

These are presentations from our Montessori Reasearch and Development Manual, with some adaptations and changes I felt worked well for Xander.

UPDATE: We have created a collection of memorization materials that are inclusive of all the materials needed to complete the sequence. If you wish to check the materials out you can do so here.

If you missed our other addition posts you can visit the following.

http://makingmontessoriours.blogspot.ca/2013/02/montessori-addition-chart-work.html

http://makingmontessoriours.blogspot.ca/2014/02/montessori-addition-tables-work.html

http://makingmontessoriours.blogspot.ca/2014/02/montessori-addition-tables-work.html

http://makingmontessoriours.blogspot.ca/2013/10/montessori-addition-snake-game.html

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