Gimnazija Šentvid Ljubljana

DRINKING WATERDRINKING WATER

THE CHALLENGE OF TODAYTHE CHALLENGE OF TODAY

Gimnazija Šentvid LjubljanaGimnazija Šentvid, Ljubljana

Drinking Water – the Challenge of TodayDrinking Water – the Challenge of Today

Interdisciplinary and cross curricular approach to teaching and learning the above issue in school years 2009/10 and 2010/11 Students involved: second class high school, age approximately 16

Basic subjects: geography, chemistry, biologygeography, chemistry, biology psychologypsychology

Gimnazija Šentvid Ljubljana

GENERAL IDEA ISGENERAL IDEA IS

to implement new teaching and learning methods,

to understand the topics in context as integrated problem,

to achieve new competencies

in natural sciences, in data collecting and

evaluating, in use of ICT, in ecological awareness,

in active citizenship…

Gimnazija Šentvid Ljubljana

GeographyGeography

OObjective: clean underground waterbjective: clean underground water

Development of ecology in the world, Europe, Slovenija – the accordance of Slovenian legislation with the European legislation

Slovenija is rich in underground water stores – studying the possibilities to prevent it from pollution Comparison of drinking water in Canada (native speaker involved) and in Slovenija

Gimnazija Šentvid Ljubljana

Mapping in groups of neighbourhood places regarding illegitimate waste deposits

Reading articles and debating about underground water conditions

Visiting the water supply power plant

Gimnazija Šentvid Ljubljana

Visit in the Kleče water supply power plant

Gimnazija Šentvid Ljubljana

ChemistryChemistry

OObjectivesbjectives

Studying the dissolving processesStudying the dissolving processes: the emphasis on lime stone and carbon dioxide equilibria – Slovenija is known for large Karst regions and numerous mineral waters:

CaCO3(s) + CO2(aq) + H2O(l) Ca(HCO3)2(aq)

Gimnazija Šentvid Ljubljana

Following the substances dissolved in water Following the substances dissolved in water regarding the quantity and health hazardsregarding the quantity and health hazards Students search for the data and present the possible hazards for drinking water regarding:

metal cations, heavy metals, ammonium NH4

+ (aq), H2S (aq), anions NO2

- (aq), NO3- (aq),

benzen and other similar substances, pesticides, halogenated hydrocarbons.

Gimnazija Šentvid Ljubljana

The preparation of drinking water The preparation of drinking water

Studying the reports about impact of techStudying the reports about impact of technnical snowical snow on the Alpion the Alpinene environment (especially the impact of environment (especially the impact of ammonium nitrate): ammonium nitrate): the debate in English, French or Slovenian about “pros” and “cons”

Analysing different sources or springs in chemicalAnalysing different sources or springs in chemical laboratorylaboratory - preparing samples, - testing water samples, - writing a report, - presenting the report to classmates and to parents

Gimnazija Šentvid Ljubljana

BIOLOGYBIOLOGY

Objectives: Objectives: to answer the questions

1. Why do we drink?

2. Why do we drink bottled water?

Gimnazija Šentvid Ljubljana

Topics of concern:Topics of concern:

water as a biological medium,

dehydration,

beverage with taste, stimulants, additives,

water circle in nature,

“self cleaning” of water,

pollution of water sources,

hidden trap in bottled water

Gimnazija Šentvid Ljubljana

I fully agree with I fully agree with careful use careful use

of drinking water of drinking water

Emotional component.

Leaking water taps,cleaning the cars…

make me angry

Dinamic c. I put off water taps, I take care not to pollute, I encourage the others to follow my example.

Cognitivecomponent

Put off the water tap!A lot of drinkingwater can be

preserved!

PSYCHOLOGYPSYCHOLOGY