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Math-Number-Sense dumped with WikiTeam tools.

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####Update: Flattened the spheres for easy printing. No raft is necessary now. Models for triangular numbers {1, 3, 6, 10, 15, ..., n(n+1)/2}. They can also be used to model tetrahedral numbers {1, 4, 10, 20, 35, 56, ..., n (n+1)(n+2)/6}. The spheres are intentionally welded with each other for easy use with students. The activities can be used at many K-12 levels, depending on the instructional goals. The formulas can be established using mathematical induction; they are as interesting as the...

Topics: number_sense, Math Art, triangular_number, stl, math, thingiverse, tetrahedral

Topics in Algebra Chapter 1 - Number Sense v1.01 (2001)(Texas Instruments)

Topics: algebra, students, press, select, instruments, linear, texas, topics, worksheet, calculator, number...

Topics in Algebra Chapter 1 - Number Sense v1.01 from Texas Instruments.

Topics: algebra, students, press, texas, instruments, linear, select, topics, worksheet, calculator, number...