Early Math

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K-5
Henri Picciotto

During my first ten years or so in education, I was a teacher of grades 3-5, and a K-5 math specialist. During that time, and since then, I developed some curricular and enrichment materials for those grades, which I link to on this page.

Some of these materials may be useful in middle school, or for math clubs / math circles.

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Addition Puzzles:: Number Pyramids; In Addition...; Staircases
Geometric Puzzles
Fractions
From my file cabinet (miscellaneous blog posts about K-5 topics):: Four-Digit Subtraction; Powers of Two; Sum and Product; Building Block Numbers; Do It to Both!
Base 5 arithmetic, by Betta and Tom Fisher-York:: Handy Math
An article (1995-1998):: Operation Sense, Tool-Based Pedagogy, Curricular Breadth
An astronomy Unit: Look! Up in the Sky!