Proportions+&+Ratio


 * L.I. We are learning to investigate and problem solve using fractions, decimals and percentage.**



__**Task**__ Making informed decisions regarding sustainable options is a necessity for the future of our environment. Tauranga Intermediate is currently not particularly thoughtful with its carbon footprint and actions taken to reduce the pressure we are putting on our environment.

Your task is to develop a proposal that will reduce the energy co nsumption of our school without significantly impacting on the learning of students e.g. it would not support learning to sit in the dark because we are not allowed to use lights.

You will need to be creative with your thinking and use your mathematical knowledge and understanding to strengthen your proposal with facts and figures that explicitly outline percentages of savings, and actions needed to reduce our schools energy consumption.

Steps needed: 1. Calculate the kwh used each month and find the average across all 6 months 2. Use the google doc's energy audit to calculate the energy used by the various areas of the school (there will be some sensible estimations involved in doing this)

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3. Compare and analyse audit with Trust Power accounts 4. Make recommendations to reduce energy usage based on sensible and logical reasoning backed up with figures outlining steps taken and percentage of savings that can occur.

Extend: 5. Compare Trust Power rates with a minimum of 2 other companies and decide if Trust Power is the best company for Tauranga Intermediate to use



Extension: 6. Investigate other sustainable options such as solar and wind.
 * How much energy can they produce
 * Cost of insulation
 * Work out long term savings for school (how much will the power bill be reduced by, how many years would it take the school to recoup the initial costs).