Graph: language acquisition in child (IELTS Writing Task 1)

Given are the line graphs that compare the number of spoken words and vocabulary size that child aged 1-4 and 1-3 years accumulated in three different family's categories.

It is clear from the provided information that there is a positive correlation between the stored words, the capacity to talk, and family's talkativeness in child's language development.

In detail, although all figures was rising in all given period, it seems like the surrounding matters most in child's language acquisition. When the toddler were 3 years old, for example, the lowest-talking family's child on average has 400 words compared to 1000 words of higher-talking families. In total spoken words, the gap was increasingly higher; the average gap of all points were approximately 2 million words, then it became virtually 15 million words when child was 4 years old.

Another striking feature is that child spoke more than vocabularies that he already acquired at any given figure.

Hello broerjuang

where is your picture? i think it will be better if you can attach it.
When the toddler were 3 years old, for example, the lowest-talking family's child on average has 400 words compared to 1000 words of higher-talking families

let me try to rewrite all this sentences,

For instance, when the toddler were 3 years old, the lowest-talking family's child has 400 vocabularies compared to 1000 words of higher-talking families

Although my tip not always right, i hope it can help

Good luck!