There is a map. A student (for each crusade a different student) has to point the starting point of the first crusade and follow the route until the end. Then the class discusses the crusade in terms of aims, planning, choice of route, strategies, consequences and results. The same is done with the other 8 crusades.

- Activity 1: Listening to the video and follow up which consists on asking and answering to some questions about the video they had watched.
- Activity 2: Study of the Eiffel Tower, France´s most famous architectural building .

There are more and more contents online in the world. It is important for the students to understand how to use the web search effectively to find quality sources appropriate to their task. We've created this lesson to help our students in their schoolwork and beyond.

LEARNING OBJECTIVES
? to define a chemical change
? to recognize a chemical change and distinguish it from a physical one
? to read a chemical equation
? to write chemical equations
? to balance chemical equations
? to classify chemical reactions
? to write formation and combustion reactions for given compounds.
? to recognize the limitant reactant
? to make stoichiometric calculations:
from mass to moles, from moles to mass, yield, masses needed for complete reactions (from a given quantity of a reactant)

The students will be given the opportunity to:
- reach a better level of reading and oral interaction in a common, known situation.
- focus on the ability of co-operative working with other learners, working towards a common goal

The teacher explains a few of the basic to using Geogebra such as how to make points, connect line segments, etc.
Students have a few minutes to play around and to whatever they want with the software.
The students complete worksheet “Investigating straight line”