Evaluation of strategic knowledge of students through authentic tasks of writingin science classroom

The difficulties at evaluating strategic knowledge have been connected to the use of deconxetualized tests that, at the end, do not involve the use of this knowledge. For this reason, an interest in developing authentic writing tasks that offer advantages for these kinds of evaluation have arisen. Throughout this research, authentic writing tasks were developed in a natural sciences class, with the purpose of evaluating the students' strategic knowledge. Different instruments were used to collect data, e.g. Interviews, questionnaires, a self-inform, as well as three samples of writing by the students, with the objective of analyzing the changes that occurred between one and the others, as well as to determine the decisions that students made in order to complete the assigned tasks successfully. An authentic writing task gives great opportunities to evaluate strategic knowledge. These tasks lead students to arrange their knowledge about the topic in hand, organize and adapt it to fit the objectives and the audience, also, it allows them to control and adjust their decisions on the task. This last stage became the perfect opportunity to take notes on the knowledge and regulation of cognitive processes that the students brought into play, as well as to evaluating their understanding of writing and the demands given on the different discursive genres. As a result, the students showed different degrees of strategic knowledge in the task. The students who showed a better strategic knowledge trust in their structural abilities know about discursive genres and have a good performance in basic linguistic abilities. The students who showed weak strategic knowledge distrust their writing skills, seem extremely worried about organizing the content of their texts, fail when checking their writings, and overlook or are unaware of the basic requirements of the discursive genre they are asked to exemplify. It appears that the previous knowledge and experiences at writing the students have been exposed to may affect the strategic knowledge shown when writing in this subject. 

Trouble Ahead: The Cocaleros of Peru

Este artículo es una versión reducida del original publicado en la Revista Current History, Vol. 105, No. 688, febrero, 2006, pp. 79-86. La revista Desafíos ha decidido publicar apartes por considerarlo de interés para la discusión sobre los efectos y resultados de la política de erradicación de cultivos ilícitos en Colombia. – This article is an abbreviated reproduction of the article published in the Current History Journal, Vol. 105, Nr. 688, Februrary, 2006, pp. 79-86. Desafíos Journal decided to publish parts of it due to the consideration of its interest for the discussion on consequences and results of the eradication policy of ilegal crops in Colombia.An anti-narcotics policy that ignores the social consequences of drug crops eradication only manages to further radicalize and isolate the population in areas in which lawlessness and potential terrorist activity thrive. It also strengthens the bond between disaffected social groups and guerrilla organizations in these areas. Washington cannot continue to be blind to the fact that the three current US policies on counterterrorism, anti-narcotics, and democratization in Peru and elsewhere in Latin America, are not working in harmony. Paradoxically, the eradication of drug crops —the core of Peru’s US-sponsored anti-narcotics policy— enlarges pockets of poverty and fuels anger against the government. It also perpetuates the proverbial quagmire of alienation in which terrorism breeds. Instead of strengthening the State, drug eradication, particularly in the way it is currently carried out in the Andean countries, increases the risk of State failure.-----El efecto de una política antinarcóticos que ignora las consecuencias de la erradicación de cultivos de coca es radicalizar y aislar aún más la población en aquellas zonas donde prosperan la anarquía y el terrorismo. Además, fortalece los lazos entre los descontentos sociales y los grupos guerrilleros en esas mismas áreas. Washington no puede seguir ciega al hecho de que las tres políticas actuales de Estados Unidos —antiterrorismo, antinarcóticos y democratización en el Perú y otras regiones en América Latina— no están funcionando armónicamente. Resulta paradójico que la erradicación de cultivos de coca -eje de la política antinarcóticos peruana respaldada por Estados Unidos- ensanche las bolsas de miseria y aliente la ira contra el gobierno, además de perpetuar los proverbiales miasmas de marginación en las que se engendra el terrorismo. En vez de fortalecer al Estado, la erradicación de cultivos de coca, tal y como se está llevando a cabo en los países andinos, incrementa las posibilidades de su fracaso.

"Tell me who you hang out with": Classroom peer effects on psychoactive substances consumption

I look for classroom peer effects for psychoactive substance consumption among Colombian high school students and attempt to identify channels that rationalize for these effects. To do so, I use data for Colombian schools from 2011. I identify peer effects using household consumption behavior to instrument average classroom consumption. I find that an increase of 10% in the proportion of classroom users of alcohol, cannabis, and cocaine increases the probability of students to use alcohol, cannabis, and cocaine in 3.14%, 4.29%, and 2.38% respectively. I find no significant effect on cigarette smoking for the full sample but after exploring heterogeneous effects I find suggestive evidence that the effect is positive in some grades. I find some evidence that indicate that peer effects on alcohol, cannabis, and cocaine consumption operate through risk perception and easiness of access to psychoactive substances, meaning that the increase of likelihood of consumption could be explained because it is easier to access to drugs for students that interact with consumers or because a decrease in the risk students perceive of consuming these substances. Finally, through the use of a SUR and a 3SLS estimator I find strong correlations between smoking cigarettes and consuming cannabis (55 %), and cocaine (60 %).