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- Math in the Comics - part 1
- Math in the Comics: The Series
- Groupings, Shopping Lists, Vectors: part 18
- Middle School Math - What is Hard?
- Notes on Representation - Large Numbers
- Tally Marks and Roman Numerals
- Math in the Comics - part 5
- Math in the Comics - part 10
- Operators, Functions, and Properties - part 40
- Math in the Comics - part 7
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- Mathematical Notation and Schools – 9
- Mathematical Notation and Schools – 8
- Mathematical Notations and Schools – 7
- Mathematical Notations and Schools – 6
- Mathematical Notation and Schools – 5
- Mathematical Notation and Schools – 4
- Mathematical Notation and Schools – 3
- Mathematical Notation and Schools – 2
- Mathematical Notation and Schools: The Series
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Tag Archives: sorting
In the Middle – Median
In the previous post, I reported on 7th graders exploring the notion of the middle between two numbers. The method used by almost all seventh graders is one I dubbed the “two-handed approach.” The same approach also works very well … Continue reading
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Tagged denominations, extending patterns, invariants, math class, representational proof, reverse engineering, sorting, unlearning
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Math in the Comics – part 8
Today’s Rose is Rose comic strip reveals something that’s in the cultural background about math homework: Can you name the background assumptions this comic strip makes, things that do not need to be stated explicitly for a wide audience to … Continue reading
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Tagged gauntlet, math class, math in the comics, selection, sorting
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Notes on Lookup – Histograms as Sieves
I think I overlooked one interesting example of something like a sieve being used in the typical K-12 math curriculum, and this post is intended to remedy that. It is possible and instructive to look at a histogram as a … Continue reading
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Tagged denominations, look-up, math class, models, representations, sieve, sorting
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Selection versus Education
In many walks of life, we are quite used to systems that select suitable candidates by putting a graded series of hurdles in their path. In the USA we do this with presidential candidates: we make them campaign on the … Continue reading
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Tagged education, graded hurdles, math class, selection, sorting
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