Doubling Time for Nonexponential Families of Functions
Sheldon P. Gordon
notions of doubling time and half-life are investigated for families of
functions other than exponential, including linear, power, logarithmic,
trigonometric, and logistic
Using Portfolio Assignments to Assess Students’ Mathematical Thinking
Timothy Fukawa-Connelly, Stephen Buck
A model in
use at Prospect Hill Academy in Cambridge, Massachusetts, provides a
skills-based portfolio assessment for mathematics classes.
Docfish: A Card Game with Factoring
Daniel M. Fishman
variation of the well-known card game Go Fish, players seek to pair prime
factors contained within the cards’ face values.
Collaborative Planning for a Unit on the Quadratic Formula
among three high school teachers as they plan a unit on deriving the quadratic
formula allow them to share ideas and reflect on their teaching struggles and
Bridging Algebra and Geometry with n-gram Proofs
Joshua D. Craven
help of hint cards, students formulate and prove conjectures angle measures,
first for pentagrams and then for hexagrams, heptagrams, and general n-grams.