Thursday, March 12, 2009

Winter Comes to an End, but Bad Math Doesn't

Next week is the start of PSSA season. I guess that means we get to hunt the PSSAs. Wouldn't that be great. Anyways, I have no idea what the weather will be next week, but I hope the temperatures (and attitudes) stay positive.

Since the Mathman morning announcements have been reduced like the greatest common factor between the numerator and denominator (i.e. cancelled) for a while, I've had some time to head out into the "real world" and fight bad math at every intersection.

It didn't take long for me to find this example:



Wow. Sounds like a fabulous toy (THAT YOU SHOULD NEVER BRING TO SCHOOL). I mean, who wants to take the effort to throw a snowball?

Anyways, If I'm going to plop down >$20 on a piece of plastic I want to know how well it works. So I went looking for some information and found:

Ad copy #1:

The 50 Foot Snowball Launcher.

STOP RIGHT HERE! 50 FOOT SNOWBALLS! RADICAL!

This toy blaster makes and launches softball-sized snowballs up to 50', allowing rapid, long-range assaults during neighborhood snowball confrontations.

Wait a second... It doesn't launch 50 foot snowballs, it launches smaller snowballs up to 50 feet. That's a bummer.

Ad copy #2:

Snowball Blaster by Wham-O
*Snowball Maker/ Launcher
*Makes and launches Snowballs up to 80 feet (24 meters)
*Compelling Box Packaging


So does it launch snowballs 50 feet or 80 feet (24 meters)?

Ad copy #3:

Product Description:
Protect your turf and defend your snow fort with a snowball maker and launcher

Snow toy makes and launches Snowballs up to 50 feet (16 meters)


By this point I was really confused. The numbers don't match.

Why?

A: My guess is probably poor font choice. When I looked at the actual package it appeared to say "80ft (16m)". This advertising ploy was pure genius. That's because 80 feet is much farther than 16m. Here's some math:

Since 1 meter = 39.37 inches it follows that

1 m .... ..... 16 m
----------- = --------- = (approx.) 52.5 ft.
39.37 in.... 629.92 in

We could also check the 80 feet and figure out how many meters that is.

Since 1 in = 2.54 cm, 12 in (1 ft) = 30.48 cm. So,

1 ft.... .... 80 ft
----------- = --------- = (approx.) 24.4 m
30.48 cm.. 2438.4 cm

The poor font choice for the 5 or 8 made the 50 or 80 very confusing. The PSSA graders probably would have ruled that "ILL" for illegible. Definitely less than a proficient score would be awarded to this product.

In conclusion, since you CAN'T use this at school, why bother paying >$30 for something so impractical? Something that would be much handier (and much less money) would be a scientific calculator with a fraction button. That, coupled with a bit of conversion common sense (CCS) would allow you to figure out that the claims made for this toy are at best confusing.

Keep your eyes open, #2 pencils sharp, and leave the snowballs at home.

Until next time,
Stay radical.