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Category Archives: Estimation
3Act Task: A 5thgrade lesson captured
A while back I shared a kindergarten lesson and I was really happy with the way it turned out. The 5thgrade lesson below, not so much. The students did great but there are definitely some things I need to improve. We recently finished up … Continue reading
Posted in 35, 3Act Tasks, 68, Estimation, Fractions, Intellectual Need, Math Progressions, Modeling, Teacher Content
14 Comments
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
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
More Bang for your Buck: The Power of the Estimation Station
Time IS NOT on our side! In a 1st grade planning session I was asked,”How do we fit it all in?” I loved this question because it asked for a solution to problem we know exists. We collectively tackled this question … Continue reading
Posted in counting, Estimation, K2, Making Math Accessible, Math Tools, Number Sense, Planning
Tagged Andrew Stadel, comparing numbers, estimation, graphing, number lines, ordering numbers
8 Comments
Not Your Mom’s Flashcards: Conceptual Understanding of Multiplication
What’s the purpose of flashcards? There’s 2 answers I frequently hear and only one I agree with. Answer 1: help kids know/memorize their facts Answer 2: help students build fluency through the automatization of strategy I know how Tracy and many … Continue reading
Posted in 35, Estimation, Fact Fluency, Games, Math Tools, Number Sense
Tagged 3rd grade, fact fluency, flash cards, fluency, multiplication, Steve Wyborney
30 Comments
A number line, number string, and Number Talk walk into a class…
As teachers and students ramp up for testing I was invited to visit a 5th grade class and asked to focus on fractions. Before the lesson, the teacher and I discussed the importance of a number line, which was an extension of … Continue reading
Posted in 35, Estimation, Fractions, Making Math Accessible, Math Tools, Number Sense, SMPs, Strategy Development
Tagged fractions, number lines, Number Talks
6 Comments
Undoing Concrete Models
Students can create models that represent their understanding, but can they undo models that explain the reasoning of others? It was time to find out. I showed this picture to a 5th grade class and asked them to write an equation … Continue reading
Posted in 35, 68, Cheese Mover, Estimation, Math Tools, Modeling, Number Sense, Strategy Development
5 Comments
Subitizing to Foster Multiplicative Thinking
Learning basic facts through tricks or a mnemonic song lead students down a path of memorization, not understanding. I previously discussed the idea of conceptual development here. When students practice their multiplication facts, they’re expected to move from concrete to abstract … Continue reading
Posted in 35, 68, Estimation, Fact Fluency, Games, Math Tools, Number Sense, Strategy Development
13 Comments
Take a Math Trick and Make it Bleed
I hate math tricks and avoid them at all costs. Tina Cardone and many members of #MTBOS are huge advocates of conceptual learning which is how we became blessed with this gem. There’s no denying that students love tricks, especially the … Continue reading
Posted in 35, 68, Cheese Mover, Estimation, Fact Fluency, Math Tools, Number Sense, Strategy Development, Teacher Content
2 Comments
On Your Marks. Get Set. Number Talks
I’ll start off by saying that I’m definitely not a Number Talks guru and over the past 4 years I’ve learned just enough to be dangerous! The first day of school is less than 12 days away and my summer is … Continue reading
Posted in Estimation, Fact Fluency, Strategy Development, Teacher Content
10 Comments