Closed greenhouses
Math Alympiad. Final 2007-2008
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Classroom materials,
motivating pupils for math and science


World of Work

Becoming a(n)...
Horticulturist
World of Work Dimensions

Context
Changing conditions in a greenhouse

Role
You are a horticulturist

Activity
Analyzing (mathematically) data about temperature and light

Product
Poster which contains:
  • The diagram from assignment 1, complemented with the cooling system
  • An on/off schedule for one of the three given days
  • Total energy costs for the three given days
Abstract
The purpose of a greenhouse is to regulate the climate for plants. You can regulate the temperature and the amount of light. Light is generated by the sun as well as by additional lamps, this also generates heat. The temperature can rise significantly if there is direct sunlight on the greenhouse. If it gets too hot inside, windows can be opened and much of the heat will disappear. As a result, most greenhouses are not very energy efficient. The latest development is the closed greenhouse, where the windows are always closed. It has a heating system that can also generate electricity. Students work on the problem: how, under changing weather conditions, can you regulate the climate (temperature and light) in a closed greenhouse so that energy costs are as low as possible.



Documents
Inquiry Learning

Inquiry Learning Dimensions

- Exploring situations
- Planning Investigations
- Experimenting systematically
- Interpreting and evaluating
- Communicating results

Discipline
- Mathematics
- Biology
- Physics
- Chemistry
- Engineering


Target group
- Primary Education
- Lower Secondary Education
- Upper Secondary Education

Age range
15-18

Duration
480 min.