Inspectors of the Central Territorial Administration of the Ministry of Ecology of the Republic of Tatarstan got acquainted with first-graders of the multidisciplinary lyceum No. 11 of the Sovetsky district of Kazan and told the kids why they need to sort garbage and what fractions were. The guys were told by examples how useful things are obtained from waste. For example, to make one T-shirt, 5 plastic bottles will be required, 670 aluminum cans can be recycled into a bicycle, and 60 kg of waste paper will save the life of one tree. Also, the students were reminded how to behave in nature. At the end of the lesson, inspectors of the Ministry of Ecology of the Republic of Tatarstan distributed coloring books "School of Ecology: Red Book" to schoolchildren.