THE DECANOMIAL......dun dun dun......
Coincidentally, I showed Bubs the sensorial decanomial in the same week that Kui and I got to the bead decanomial (Well really we got to it because we finally got the beads in the mail!)
I presented this to Bubs after I had shown him the short bead chains and he had worked with them for awhile. He is quite aware of the different colors for each number. For example, red is one, four is yellow, etc. So when I started showing him this material he immediately pointed to the bead cabinet and said, "Mommy, it looks just like that!" His shrill little excited voice encouraged me greatly in my homeschooling journey because all of these materials are quite time consuming to make. Yes, there are quite a few materials that can be bought, but there are also quite a few that need to be made by the teacher (a.k.a. myself). A great example of my hand made material can be seen in the third picture below. Anyone see the wavy rectangles?! Ha Those got jammed in the laminator and when I tried to reprint them, my ink cartridge ran out and the blue squares looked more like a sky blue. Needless to say that I wasn't going out to get ink any time soon and every day is precious in the wonderful world of Montessori learning. So.....I decided to go ahead and present to him even though the materials were somewhat less than perfect. (I do plan on fixing these, but for this presentation, it had to do.)
I also need to make a storage container for all of these little rectangles. Not sure where I will find that.....
Those wavy rectangles just add character right?! This material is truly one of a kind.
In the picture above, Kui has already switched out her loose squares with the fixes squares on the diagonal. If you click on the picture it will become larger. Then you can see them in the top left hand corner and going diagonal to the bottom right hand corner. Then she switched out the beads using the commutative law of multiplication. 2 x 3 is the same as 3 x 2 for example. This is what gives you the pattern of the decanomial.
Her finished decanomial. Phew! It was a lot of work, but she discovered that it was the same thing that Bubs was working on and he thought that was pretty cool. He looks up to his big sis and the fact that they were doing something so similar was cool to him.