HOW OUR WASTE GOT CALCULATED

On October 11, 2018, class 2d of our High School with their tutor Karolina Matuszewska conducted a mathematics lesson on which they dealt with waste from the school rubbish bins.

First, young students went outside the school to measure and later calculate the volume of rubbish (mixed waste, paper, glass and plastic). The 1000 liter container for mixed waste was filled in ¾ volume, which gave 750 liters. The glass container with a capacity of 240 liters was full in ⅔ of its volume, which amounted to 80 liters. The paper container with capacity of 240 liters was full.

The amount of trash in five 240-liters containers was as follows: two containers were full (480 liters), one to ¾ volume(180 l), one to ⅓(80 l) and one to ¼(60 l). After students had returned to the classroom, they started counting.

First they asked: how many liters of rubbish do we have in the school? They calculated that high school students collected 1870 liters for 2560 total bins' capacity, which gave us 73% of the volume of high school containers. Later they ordered the volumes in ascending order, calculated the median, dominate and data range.

Class 2d came to the following conclusions:

• young people don't want to sort out rubbish
• there should be more bins for rubbish in the school
• there should be an even larger division of segregation (for example: division of glass into colorful and white)
• students are wasting a lot of food
• young people are not fully aware that they are polluting the environment  (ZD)