♦ I plan to begin the year with some review of basic ideas from cognitive science and from mathematics education. After that brief review, I plan to concentrate on illustrations of applying current cognitive science to teaching elementary mathematics. ♦ I expect to revive and revise some computer programs for presenting on-line low-stakes quizzes. (TF,

# Category: Uncategorized

# The Law of Trichotomy – Polynomials in General Part I

My primary recommendation is that we always simultaneously consider an equation and its two inequality siblings as a group and that we graph all three on the same number line. Law of Trichotomy Applied to Polynomial Inequalities in One Variable: Rule: The procedures demonstrated in Example 1 and Example 2 (of previous two posts) may