The pie charts illustrates such as of a survey of the effects of a poor learning outcomes in schools in particular country in the years of 2011.
Overall , the unskilled teachers was the highest portion ,while the lack of revision the lowest percentages causes of poor learning outcomes schools in a particular country.
Firstly ,we see the highest porportion was 35% , which was unskilled teachers in 2011 . Next come to second highest percentages was upbringing , its was slowly decreased and its also shows 27% by 2011.
On the other hand , the working parents , lack of revision as well as poor facilities the lowest portion. The first lowest portion was lack revision , which was 8% by 2011. The second lowest percentage was poor facilities , its also shows 10% . Finally , the last lowest portion was waorking parents, which was 27% in 2011.
