5 of 5 Items .... Source: Mr. Honner

This question is from the NY Regents test, and discussed by Patrick Honner in his long-running series, "Are These Tests Any Good?"

Can your students find what is wrong with it?

How should they fix it?

.: [ALG2], [Mr. Honner], [Find the Error].

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These questions are from the NY Regents test, and discussed by Patrick Honner in his long-running series, "Are These Tests Any Good?".

Can your students find what is wrong with them?

and

.: [ALG], [Mr. Honner], [Find the Error].

. . . View This Fullsize

Sayeth Mr Honner:

Patrick Honner: Here’s a fun little data set from a statistics textbook I’m reading.

3

These are the distributions of last digits of ages reported on the 1880 and 1970 US Censuses. At least two interesting questions come to mind, one with a seemingly easy answer.

What do you think his two questions are?
What other questions did you have?
What would the graph look like if we asked people for the ages of their parents?

.: [STATS], [Mr. Honner], [Notice, Wonder].

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So Sayeth Mr Honner:

I wonder if it’s possible to find the angle between my sight-line and the central axis of the cylinder by comparing the centers of the various circles?

I've got a hunch the relative size of the circles counts, too, but I haven't thought deeply about this yet.

.: [GEOM], [Mr. Honner], [The RealWorld].

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Why are coordinate axes perpendicular?

Do they have to be?

What if there are more than two dimensions?

My question of the day: what's so great about axes being perpendicular?

.: [ALG], [Mr. Honner], [What If].

that's it.