Here it is folks, your freebie of da' week, something to toss over to your 3rd graders and upwards to scratch their brain and perhaps boggle their minds.
In this Puzzla©® from the labs of SamizdatMath©, we find out the following:
[I]Little Ed Amame does his chores from 5 - 6 pm every day.
He uses half of that time to compost his bean husks.
He then uses a third of the time left to keep his finger and toe nails neatly trimmed. He then spends 8 minutes on applying his hair gel.
How many minutes does he have left to walk his pet ocelot?[/I]
This is a good example of a problem that has to be approached from the end: we know that Little Ed has 1 hour to do his chores, and then we subtract 8 minutes to apply his hair gel. But we also know that he uses a half-hour to do the composting (30 minutes) and 1/3 of the remaining time for nail trimming (10 minutes), so add them all up to get 48 minutes. The poor ocelot, she only gets a 12 minute walk....
Let your kiddos work on this during the week, and then pick out two of them to put together a poster that they can share on Friday morning. They'll love it!
FYI: The Ocelot
The ocelot (/ˈɒsəlɒt/; Leopardus pardalis), also known as the dwarf leopard, is a wild cat distributed extensively over South America including the islands of Trinidad and Margarita, Central America, and Mexico. It has been reported as far north as Texas. North of Mexico, it is found regularly only in the extreme southern part of Texas, although there are rare sightings in southern Arizona.
The ocelot is similar in appearance to a domestic cat. Its fur resembles that of a clouded leopard or jaguar and was once regarded as particularly valuable. As a result, hundreds of thousands of ocelots were once killed for their fur. The feline was classified a "vulnerable" endangered species from 1972 until 1996, and is now rated "least concern" by the 2008 IUCN Red List.