Not to mention that the ability to quickly add basic numbers will help greatly as they progress through larger problems. When they are given an addition or subtraction problem with larger numbers, they will be more likely to look for strategies to problem solve if they’ve spent time pulling apart smaller numbers. Practicing this skill can change the way that student’s look at numbers.
Most important relationship that can be developed about numbers” (Van de Walle & Folk, Elementary and Middle School Mathematics, Can. Looking for 15s is a great way to strengthen the fact that numbers are made up of smaller numbers (or, the Whole-Part-Part relationship.) John Van de Walle says this about Whole-Part-Part relationships: “ToĬonceptualize a number as being made up of two or more parts is the Being able to see the relationship between numbers is crucial for kids in developing number sense. The game of cribbage is all about adding numbers from 1 – 10 and combining numbers to make 15. (Kids can also save their game and continue at lunch, which I know is a a complaint about many board games in my room.) It’s really got a few rules and minimal cleanup – perfect for a short play time. I have often stayed in my classroom with children teaching them how to play cribbage. Crib is one of my favourite games and, sadly, it seems like many children do not know how to play it! Here in FSJ we have many inside days during the winter.
