Department 6 · Business Calculus

Measure the Rate of Change

Track how a meaningful business variable changes through time.

22

Lesson 22 of 33 · one artifact

By the end

You will be able to track how a meaningful business variable changes through time.

Enter the lecture

WATCH THE ARGUMENT BEFORE YOU USE THE WORKSHEET.

Full lecture · 1:05:44→

Starts at 5:41 · YouTube loads only after you press play.

Before you watch

Write what you currently believe about this lesson's question. Keep the note—you will revise it after watching.

Chapters used in this lesson

  1. 5:41Numeracy is the new literacy
  2. 43:02Move from minutes to weeks to battle testing

The idea worth keeping

Measure the Rate of Change

A total hides motion. Rate of change shows whether attention, conversations, payments, delivery time, or learning is improving.

Your turn

Measure the Rate of Change

One inspectable output

Choose one variable, measure it twice, and calculate the absolute and percentage change.

Finish with: A two-period rate-of-change note.

See the transfer

THE SAME IDEA. TWO REAL CONTEXTS.

Professional example

Replies rise from one to four per ten offers after the market narrows.

Clinician example

Staff review time falls without increasing error or privacy risk.

Score your artifact

DOES THE WORK HOLD UP?

  • Variable matters
  • Units match
  • Interpretation does not outrun the data

Keep this

Measure the Rate of Change

  • A total hides motion. Rate of change shows whether attention, conversations, payments, delivery time, or learning is improving.
  • A two-period rate-of-change note.

Your evidence: A two-period rate-of-change note.