Please check this post help me ( The bar chart in Ielts writing task 1)

1. Describe The Bar chart

The bar chart provides data about the figure for students who choose their favorite subjects and divides these subject groups into female and male students in a school in 2009.

Overall, The rate of selecting subjects for both men and women had some fluctuations. Although girls initially had a lower rate, it outraced boys at the end and equal in history subject of the period.

Males'rate was about 75% in Maths, being higher than Females'rate by approximately 20%. Then, it fell to almost 50% dramatically in English. However, the figure showed a gradual increase to just over 60% in Science, and continued to decline steadily to almost 45% in History and hitting a low-point of about 30% in Geography, then increased by approximately 10% in Art at the end of the period

The percentage of Female students in Maths was less than 60% and increased by around 5% in English after which this figure fell sharply to almost 50% and then this was followed by a sharp fall to 45% in History. However, the figure experienced a steady growth in Geography, it rose to approximately 3% and remained steady for the Art, outracing the rate of Male students