Several people have asked me about my Big Class Problem-Solving Notebook. It is simply a chart tablet (I use the 24x16 " one) that we record our thinking and strategies in together as a class.
We go through several a year (and I don't always decorate them, but for you, I fancied it up!)
We often use it as a way to record our warm-up activities (see below for examples). More importantly, we use it during mathematician's chair for the kids to record and explain the different strategies they use to solve problems. I do not have any pictures of that, but as soon as I get some, I'll post them. It's a very important part of kindergarten problem-solving and I can't wait to tell you all about it!
In the meantime, here are some ways I use the notebook for "warm-ups." My warm-ups take many different forms, but these are little mini-lessons that address the math concepts we're currently covering, as well as review concepts we've already covered. I usually do one to begin math, but I also sneak them in during calendar time or any other time I have a few minutes.
We do this one during mathematician's chair after the How many eyes do you have? problem. I invite the children up to show me different ways to represent the number 2--->2 dots, 2 tally marks, 2 flowers, 2 triangles, etc. Later in the year, we will add in equations- 1+1; 4-2; etc.
Same problem, different number:
We brainstorm different reasons people count and how counting helps us...
We brainstorm good counting strategies--line objects up, touch them, push them away, etc.
We do this for mathematician's chair after this problem. Don't worry, I add 8, 9, 10 if we need them. (And 2! Once I had a Vu!)
We do this when we start talking about attributes. Here, we're comparing pictures. But we compare objects in the room and even kids! We do this a lot, all year long! Here it is if you want it:
Here's another one we do all year long. Of course, the numbers get bigger...
Another same/different problem.
A great place to get ideas for these warm-ups is from The K-Crew's Buzz Book. They are a wonderful resource!