lunes, 18 de marzo de 2013

off topic: problemas con los comentarios

No sé cuántos de los que os pasáis por aquí habéis tenido problemas para publicar comentarios. Yo hace tiempo que me di cuenta del problema porque no podía responder a los que aparecían. Desde entonces he intentado resolverlo: primero consultando el problema a los de blogger (sin respuesta), luego consultando en multitud de foros (sin respuesta satisfactoria) y finalmente consultando a mi propia intuición ayudada del sofisticado método de ensayo-error.
Al final creo que lo conseguí, cambiando el modo en el que aparece la ventana de comentarios de debajo de la entrada a ventana emergente.
Espero que de ahora en adelante no haya problemas para que podáis dejar vuestros comentarios (que siempre son bienvenidos y agradecidos).
Un saludo desde la Casa a todos sus visitantes.

martes, 5 de marzo de 2013

The evolution of ideas (an example)

This is a new version of this activity

This activity consists of a text that starts with Tartaglia, Cardano and their competition to find the solution to the third and fourth degree equations and finishes with Complex Numbers and the Mandelbrot Set. It also has some activities for the students related to the text.
In the links below you can find the handouts for the students and the teacher guide. You can also get a couple of videos from YouTube and a GeoGebra applet with interesting representations of the Mandelbrot Set.

The evolution of ideas (handouts)
The evolution of ideas (teacher guide)
Mandelbrot Set 2010 Odyssey (video)
Mandelbrot Set Zoom (video)
Mandelbrot Set (applet GeoGebra)

[1eso] Algebra: algebraic language, equations

Here you can find the materials to develop 14 sessions on algebra (55 minutes/session)
Topics worked: algebraic language, algebraic expressions, creating formulae, numerical value, operations with algebraic expressions, equivalent equations, solutions, first degree equations, solving problems.
Some exercises are taken from a selection made by J.A. Trevejo from Australian text books Mathematics for the International Student, Haese & Harris Publications, 2008.

session 1 (algebraic language): teacher guide, handouts, solutions
session 2 (algebra vs english + guess the number): teacher guide, handouts, solutions
session 3 (creating formulae + numerical value): teacher guide, handouts, solutions
session 4 (like terms + numerical value): teacher guide, handouts, solutions
session 5 (expand and simplify): teacher guide, handouts, solutions
session 6 (operate algebraic expressions): teacher guide, handouts, solutions
session 7 (operations + equations & solutions): teacher guide, handouts, solutions
session 8 (solving equations): teacher guide, handouts, solutions
session 9 (equivalent equations + solve equations): teacher guide, handouts, solutions
session 10 (solve equations): teacher guide, handouts, solutions
session 11 (problems with equations 1): teacher guide, handouts, solutions
session 12 (problems with equations 2): teacher guide, handouts, solutions
session 13 (problems with equations 3): teacher guide, handouts, solutions
session 14 (problems with equations 4): teacher guide, handouts, solutions