Why would I use cards like this to build automatic recognition of number?
I need to know if the colours are a distractor. Seven is seven, no matter what I make it from or what colours I use. Can you see beyond the 4 and 3? If this is 7 dots then it is also 2 and 5 dots or six and one dots or 2 + 2 + 2 + 1 dots. The ability to flexibly name numbers is foundational to building long term RECALL of facts.
The 2 colour dot set includes 2 decks of 2 colour cards. One set for numbers 6 to 8 and the other set for numbers 8 to 10 along with a workbook of ideas and student pages. The set is $25 Canadian.