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Category Archives: Strategy Development
The Progression of Early Number and Counting
If you’re not a prek, kindergarten, or 1stgrade teacher, you need to find one and give them a hug after watching this video. They do the work of an army and many times their work goes unnoticed. There’s so much happening … Continue reading
I’ll Rip Your Face Off: The Art of Defacing Manipulatives
It’s our fault. We have no one to blame but ourselves. We unknowing pigeonhole student thinking with the manipulatives we use. Take fraction tiles for example. Much to my disappointment, they come with labels and it kills me. Manipulatives that … Continue reading
Geometric Subitizing: A Different Kind of Number Talk
These Geometric Subitizing Cards have been in beta the past two years. I asked our buddy Joe Schwartz to take them for a test drive last spring and he reported back. Joe’s all in. How do they work? Let’s play… Last week I took them for … Continue reading
Conservation: The more things change, the more they stay the same
Every once in a while I stumble across Piaget’s 7 Conservation Tasks and then I move on. This week was different because my thoughts around conservation won’t go away. In a recent meeting with kindergarten and 1st grade teachers we discussed the importance of students being able to … Continue reading
Posted in counting, Estimation, K2, Making Math Accessible, Strategy Development, Teacher Content, Teaching in a Context
Tagged conservation, decomposing, Piaget, unitizing
5 Comments
Making Sense of Invert and Multiply
As elementary teachers, we rarely have the opportunity to explore division of a fraction by a fraction. When we do, it’s normally accompanied with KeepChangeFlip or the saying “Yours is not the reason why, just invert and multiply.” Both are conceptual … Continue reading
The Progression of Division
Last month I posted The Progression of Multiplication hoping that a couple of friends and parents would find it helpful. Well, here’s my stab at the progression of division. I understand that there’s lots of ways to model division and this is only … Continue reading
The Postit Holds the Mystery Number
There’s no denying the power of the Postit. Many brilliant minds within the #MTBoS have harnessed its’ power to help students make sense of mathematics and this week was no different. Only this time we infused them into a Marilyn Burns must have… … Continue reading
Posted in 35, Algebra, Making Math Accessible, Number Sense, Strategy Development
Tagged Algebra, Marilyn Burns, patterns
16 Comments
Take it to the Bank
It’s never been a secret that Superman fears Kryptonite. But I think the same can be said for many 2nd grade teachers and the way they feel about teaching money. There’s no way around it…teaching money to students is hard. With … Continue reading
The Progression of Multiplication
There’s a lot happening in elementary mathematics and it’s really tough for teachers to keep up with it all…let alone parents and administrators. I keep reminding myself that the turtle won the race. It’s my hope that in creating and … Continue reading
The Sounds of Imaging Numbers
One of the most difficult standards for 1st grade students to own is the idea of adding or subtracting multiples of tens OR a group of ones. Without it…all other numbers fall apart. (1.NBT.46) Karen is a phenomenal 1st grade teacher. Being new to the … Continue reading
Posted in counting, Strategy Development, Teacher Content
Tagged 1st grade, CRA, counting, imaging
24 Comments