SESIM, the science and mathematics teacher organization I work with here in the capital, is engaged in projects to augment science and mathematics curriculum as well as give teachers training in these subjects, all based around hands-on, experiential activities that link the students’ experience to the content of the curriculum. We get small grants to work toward these goals with various groups of teachers.
One of the more interesting things we’ve been able to do with these small grants is support the formation of local teachers’ associations. Two reasonably strong ones existed already in the districts of Baucau and Manufahi, each having a small thread of support from abroad. In other districts, handfuls of motivated teachers meet informally. We’ve now given seminars to three different groups of teachers, including the group in Manufahi, and started monthly gatherings with interested teachers here in Dili. In two weeks we plan to give another seminar to a group of teachers in Oecussi, the district of Timor-Leste isolated in West Timor due to colonial history.
At these seminars and gatherings, we’re able to step a bit away from the national curriculum (although the curriculum is so broad that nearly everything we do is linked in some way) and just choose activities that will turn the teachers on to the joys of tinkering around with science and mathematics. This composed the majority of my work in the U.S., so it is great to be doing it here.
We encourage the participating teachers to meet regularly for fun and exploration, as well as to learn together and improve their teaching. We don’t yet have the capacity to support them with materials or money, but we can answer some of their questions and, perhaps most important, if they come up with some good activity, we’re in a position to develop it and include it in future trainings. This is the “science and mathematics education clearing house,” or “idea central” role that I take part in when working at the Exploratorium Teacher Institute. Yes, we come up with lots of good ideas ourselves, but the reality is that we skim the best ideas off of all the teachers we meet, and then distribute them far and wide! No guild secrets in the world of teaching; only wide, open-source sharing!
- The general scheme of most of our seminars starts with the teachers coming in to pick up their notebook and pencil. The two women on the right are SESIM trainers teaching the seminar with me.
- After all are present, the event is given a formal start. The highest ranking representative in the relevant Ministry of Education department has a few words with the teachers, as do each of us. Director General Maia gives his encouragement to a group of mathematics teachers.
- We often start by doing an integrated activity together with the whole group. Here we’re doing the famous “Person and Candle” activity, in which it is discovered that people and candles need the same thing to live. We don’t actually prove exactly what it is, but we see in the textbooks that it is oxygen.
- Domingas collects observations (left column) and questions (right column) from the teachers after extended experimentation. We will not resolve all the questions, but we want to show that the student’s question is of paramount importance.
- We always put on a big lunch. Teachers must feel respect if you expect them to pay attention at the seminar. Respect in this case translates directly to a full belly.
- We try to have a group photo also. Here is the Dili mathematics seminar, with the participants holding up the basketry they found mathematics within.
- Here I am droning on and on again… It’s actually more of a trick than usual not to talk too much, since many of the teachers are full of questions, and are keenly interested in the answers. But we let them know, again and again, that the real answers lie before them on the table of stuff they’ve just tinkered with.
- Some of the mathematics got a bit hairy at that seminar. We notice that many teachers are drawn to the higher level concepts, probably to solidify their own knowledge. But the real trick is to hold the level down where the students can grab it, even when the curriculum is swirling high above.
- For example, how many times do five people have to shake hands before they’ve all shaken hands with one another? Six people? Seven? N? Find some friends and figure it out!
- Josefina is filling her basket with sand which she’ll use a graduated cylinder to measure the volume of. Earlier she calculated its volume with measurements and a formula.
- There is an unbelievable amount of mathematics present in the basketry here. Nearly every concept in the geometry curriculum can be tied to the local weaving, as well as equations, sequences, series, and on and on. Note the five-pointed star on the left – how is that possible, when all the others are all six-pointed? Don’t ask Euclid; this is non-Euclidean geometry.
- Here the teachers recreate the simple woven palm leaf fan, and find out it’s not so simple.
- These teachers are making rainbows with their squirt bottles, which have dozens of pinholes punched in the lid. That’s the solution we found to no running water; back home I do this with a garden hose. Note the big spectrum on the wall behind.
- The bright spectrum on the wall is formed by a mirror in a bucket of water. In the foreground the teacher projects another sort of spectrum – an interference spectrum from a DVD – onto his notebook. Both are powered by the tropical sun, reliable even during the rainy seasons as long as you pull off your experiment in the morning.
- Tracing the chicken’s digestive tract is always a popular activity. Though the teachers have butchered hundreds of birds in their lives, only now do they learn what each organ is for. The meat is always taken away for someones’ supper.
- The chemistry team has developed the old classic volcano activity to new levels. This shows how they dig it into a mound of dirt, and combine the baking soda and vinegar/soap solution using a tube running off to the side. High drama, but unfortunately, there are no volcanoes on Timor to draw comparisons with.
- There is a lot of limestone here in Timor, and it fizzes with a reaction when you put it in a cup of vinegar. Use homemade palm vinegar and you just may have the quintessential local science activity.
- These chemistry teachers have a lot going on: a reaction is blowing up the balloon on the bottle, there is a layered bottle of oil and water in the foreground, and they are now creating layers of sugar water with the syringes, each layer with a diminishing concentration of sugar, and thus a lesser density.
- These physics teachers are finding centers of gravity. High school teachers attend the session of the discipline that they teach, but junior-high teachers teach integrated science, so they choose the session of their interest.
- In the center you see a balloon (the earth) covered with a black plastic bag (the ocean). The lemon on the left is the moon, tugging at the ocean with its gravity to create the tides. The complication intensifies when the orange on the right (the sun) is considered as well, also tugging on the tides.

























































































































