GIMP: Cómo añadir un fondo transparente a una imagen

GIMP sigue siendo mi herramienta open source favorita para editar imágenes aunque algunas funciones son difíciles de encontrar o de recordar cuando se necesitan. En este caso, voy a dejar escritos los pasos para establecer que el fondo de una imagen sea transparente. Abre la imagen en GIMP Menú Capa -> Transparencia -> Añadir canal Alfa. …

Continue reading ‘GIMP: Cómo añadir un fondo transparente a una imagen’ »

Maps of interactions in Math Classrooms

The slideshare presentation embedded below posted by Maria Andersen, Director of Learning & Innovation at Area9 on Oct 02, 2010 summarizes a research paper from Vilma Mesa titled “Student Participation in Mathematics Lessons Taught by Seven Successful Community College Instructors” (see page 64). Maps of Interaction in Math Classrooms from Maria Andersen What it caught …

Continue reading ‘Maps of interactions in Math Classrooms’ »

My virtual attendance to #mtmoot 2014

June is usually a busy month for teachers. Final exams, grades, school reports, meetings with parents are the usual stressing tasks for all of us. So as soon I begin my summer holidays, I start to pay attention to many other forgotten activities  and hobbies. One of those activities is to read about what’s going …

Continue reading ‘My virtual attendance to #mtmoot 2014’ »

Why to use Open Texbooks

This short post will be about Open Texbooks. One of the activities demanded in the OERu online open course about Open content licensing for educators (OCL4Ed) was to read the the book #Open Textbook Tweet and to choose those tweets I particularly liked. The PDF Open Texbook Tweet book (859 KB) contains 119 pages and …

Continue reading ‘Why to use Open Texbooks’ »

Lifelong learning reflection

It’s Friday evening and just some hours ago I finished a training workshop for teachers about ‘how to teach with Moodle‘. I spent 12 hours in sessions of 4 hours/day with teachers from Primary and Secondary who were eager to start their summer holidays after a long and hard yearly course. The last effort for …

Continue reading ‘Lifelong learning reflection’ »

Estadística con R

El sábado, 22 de Febrero de 2014, Galpon organizó un taller sobre “Estadística con R” que se desarrollará en dos sesiones. La primera sesión la impartió Miguel Blanco, investigador del departamento de Ecología y Biología animal de la Universidad de Vigo. Con Miguel aprendimos a instalar R y RStudio (en mi caso sobre Ubuntu) y …

Continue reading ‘Estadística con R’ »