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.

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Matrix multiplication without tears!

My dad figured this out years ago.

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

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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