Monthly Archives: December 2016

Matrix inversion made relatively easy

This is the standard way of inverting a matrix. I came across this first in 1960. Oh so long ago! Goodbye Cramer’s Rule.
matrix-inverse-theory

matrix-inverse-theory-p2

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Matrix multiplication without tears!

My dad figured this out years ago.

mult-1-1

The string method work for all matrices, and it is at least ten times quicker to “do” than to “write about”.

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Filed under algebra, education, math, teaching, transformations, Uncategorized

aggravatED: The education consultant-management education consulting firm

Optional, yet optimal…..

A Total Ed Case

Dear Assistant Superintendent MacGuffin:

Thank you for your interest in partnering with aggravatED, the education consultant-management education consulting firm, and for so thoughtfully completing our preliminary readiness screening tool, the Partner, Initiative, & Stakeholder Survey (PISS™).

Our consultant-management consultants looked with great interest at your PISS™, and they concluded definitively that your district would benefit from our innovative, strategic, and accountability-focused guidance.

As you may remember from our informational materials, our initial PISS™ analyses categorize participating schools/districts into four categories describing overall focus and consistency: Laser, Inconsistent, Diffuse, and Without Tangible Focus (WTF).

According to this scale, our initial analysis — which included a study of historic district performance and engagement data — identified your district’s PISS™ as just at the division between ‘Diffuse’ and ‘WTF’. Below are a few noteworthy — and seemingly competing — initiatives/partners that helped us reach these conclusions:

  • Partnership with disruptED, ed-tech firm facilitating district’s…

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