Suffrage in the U.S.A.

Go back in time and see who would have won the last presidential election. BuzzFeed has an excellent set of maps showing who would have won the election if voting was restricted as it was in the past.

2012: The actual voting map. (Image from BuzzFeed).
1970: Adults over 24 years old (before the voting age was lowered to 18). (Image from BuzzFeed).
1920: Women’s sufferage. Only white voters (men and women). (Image from BuzzFeed).
1870: Only men can vote. (Image from BuzzFeed).
1850: When only white men could vote. (Image from BuzzFeed).

The video below gives a quick history of when voting rights were extended to different demographic groups.

Diwali

Dias in St. Louis.

I remember driving around town looking at the lights … arcs of dias sitting on split-bamboo trellises … everywhere. Hundreds and thousands of little flickering lights.

I remember refilling the oil in the dias and replacing the wicks as they went out.

I remember attending prayers, and eating good food — curry, dal, rice, roti — with my hands off banana leaves.

I found a new Indian/Pakistani grocery last week, just in time for Diwali. Diwali’s got elements of Thanksgiving (harvest feast), Christmas (lights and some present giving), and New Years (in some parts of India). Mostly, I remember it as the Festival of Lights. So, I picked up six dias at the store, and improvised with cooking oil and string (for the wicks), so my kids could have their chance to play with fire.

I think I’ll bring them into school too. Last week the middle schoolers attended a diversity conference. They didn’t seem to get too much out of it, so I’ve been trying to be a little more explicit about the subject.

Taking care of the dias on a cold, November night.

Invasive Species on Campus

A student helps Scott Woodbury uproot an invasive bush honeysuckle.

Last Friday, we were lucky enough to have a horticulturalist, Scott Woodbury, visit the Environmental Science class. Scott teaches the Native Plant School at the Shaw Nature Reserve, and spends a lot of effort dealing with invasive species.

The extent of the problem on our campus was quite sobering. The invasive trees, shrubs, and vines displace native plants, and animals as well because the native fauna are not adapted to them. A native elm might support somewhere around 300 species of caterpillar, while an imported bradford pear might have just a few; Douglas Tallamy has a good book, Bringing Nature Home, on the subject.

This beautiful bradford pear is one of half a dozen at the front of the building. They are quite aggressive however, and their progeny can be found all the way along the creek and up the slope.
A young bradford pear on the slope.

The bradford pears are quite pernicious. They were once favored by landscapers because of their beautiful spring flowers and brilliant fall colors. However, the birds spread their seeds far and wide, and now bradford pear saplings can be found all over the campus. They tend to do better in the grassy areas at the sides of the roads, as well as on the slope overlooking the school that’s still in the early stages of succession. The saplings can be cut down with hand saws, and I doubt anyone would notice that they were gone, but it’s probably going to be tricky getting permission to take down the half dozen mature trees on the front lawn that were planted when the school was built.

Bright orange berries on a vine of oriental bittersweet.

The dark secret about the oriental bittersweet vine that’s attacking the trees along the creek, is that they probably came from the Shaw Nature Reserve. Apparently there was a mistake at one of their sales, and one of our teachers bought the wrong species of bittersweet. Cutting the vines that are growing up the tree trunks should slow them down.

Scott Woodbury holds the long stem of a specimen of sericea lespedeza. The entire slope behind him is covered with the species.

Sericea lespedeza has pretty much taken over the slope above the school. This herb was imported for erosion control but was found to be extremely hard to control. On the plus side, while it does well in disturbed areas like the slope, since it is an early succession species, it will be succeeded by the tree species that are now growing up through it. It’s just going to take a number of years.

Bush honeysuckle.
Hand pulling a bush honeysuckle.

At least the bush honeysuckles, which can be found all along the creek, can be hand pulled if they’re small enough. However, we’ve got some pretty big specimens that are much harder to get rid of. They grow fast, leaf-out early, and crowd out the native shrubs.

Interestingly, all these four species are all from Asia. The latitude is similar to Missouri’s so species from that part of the world can thrive here where the climate is similar and they don’t have their native predators and pests. Scott did point out a couple of native species — eastern red cedars and sugar maples — that have become much more aggressive because of all the fire suppression over the last few hundred years, but that’s a story for another time.

Invasive versus native species.

The Essentials of Education

Free school offered under a bridge in New Delhi, India. Image from NBC News’ Photoblog.

Two things, I think, are required for the best education: an enthusiasm for teaching, and a yearning to learn. All the rest is . . . nice.

Yearning. Image from NBC News’ Photoblog.

Like their Montessori counterparts, these students are responsible for maintaining their environment.

Cleaning up. Image from NBC News’ Photoblog.

Living next to Chernobyl

Hanna Zavorotnya, 78, lives in Chernobyl’s dead zone. Image from RENA EFFENDI/ INSITUTE via The Telegraph.

We were talking about environmental disasters, specifically nuclear radiation, and looking at pictures of Chernobyl, when a student asked if anyone still lived there. The city and surrounding region was evacuated, however some 1,200 people returned to their homes. Holly Morris has an interesting article on how “The women living in Chernobyl’s toxic wasteland” survive. Curiously, 80% of the remaining survivors are female.

Geometry at the City Museum

Ms. Wilson believes that the City Museum makes a great field trip for her geometry class. I think she has a point.

I had my pre-Calculus students take pictures of curves at the City Museum. Ms. Wilson’s geometry students had to photograph shapes and angles instead. Then they had to put together a slideshow of what they found, which, from what I heard, went very well.