Math story · Working dogs
Goat Jumps Measure

Springbok hung in the air a moment too long, then landed on the wrong side of a thought.
How high was that jump? Spike asked. Guessing is not measuring.
Suzy stood beside the rail. This rail is knee-high to a kelpie. That rail is shoulder-high. Springbok cleared the knee rail, not the shoulder rail.
Compare, said Spike. Lower rail: easier. Higher rail: harder. Numbers hide in taller and shorter.
Rooibos lined up a headbutt idea at the higher rail and thought better of it. Marmite looked innocent near the legal climb log.
Spike counted rail bars from ground to top: one, two, three. Springbok’s jump matched two bars, not three.
So the fix is not yelling, Suzy said. The fix is knowing which height invited the mistake.
They marked the temptation rail for a human hand later — dogs notice; people mend.
Canberra ignored goat maths with cattle dignity. Little Thunder stayed off the goat experiment entirely.
Measuring jumps teaches you to change the invitation, not only the goat.
You can compare heights at home too: step, stool, fence — which is taller? Which is allowed?
Measure first. Mend the invite.