Istituto Comprensivo Statale “Molise Altissimo” Carovilli (Italy) The students present: The “HEIGHTMETER” School year 2008/2009 Comenius project

Knowledge : proportions, similes, straight propagation of the light. Objective: how to measure the heights of the walls even without the light of the sun. Knowledge : proportions, similes, straight propagation of the light. Instruments : instrument to measure the heights (metre), a little arm long 1 meter, the “Altometro”, literally “Heightmeter”. School year 2008/2009 Comenius project

School year 2008/2009 Comenius project

How you can use it (look at the photo): School year 2008/2009 Comenius project

What we measured: The column in front of the school building (photo A): The length of the shadow casted by the column -2.82m The length of the shadow casted by the stick-0.94m The height of the column-2.82: 0.94 =3.00m A School year 2008/2009 Comenius project

B The length of the shadow casted by the stick-0.73 m The bell tower (photo B): The length of the shadow casted by the bell tower-15.20 m The height of the bell tower-15.20: 0.73 =20.80 m B

C The church of Saint.Maria Assunta (photo C): The length of the shadow casted by the stick-0.76m The length of the shadow casted by the school building - the height of the school building 13.16m- 13.16 : 0.76 =17.30m C School year 2008/2009 Comenius project

a little wooden piece in the shape of isosceles rectangular triangle Our idea was to project and realize one adapt instrument to this purpose:the “Altometro”. NECESSARY MATERIALS: a little wooden piece in the shape of isosceles rectangular triangle projector of laser rays. School year 2008/2009 Comenius project

Thank you!!... School year 2008/2009 Comenius project

A special thank to our Maths and Science theacher Giuseppe Masciotra ,who leaded us in the realization of the project, and to our English teacher Maria Spina Cinquina who helped us to translate our texts. School year 2008/2009 Comenius project