You might be "padding" your word count with vague, repetitive phrases (fluff). 

The Solution: Replace general statements with concrete examples. Instead of saying "technology is helpful," describe how a specific app helps students learn a language faster. 

It’s not just about avoiding mistakes; it’s about syntactic variety. 

The Solution: Mix your sentence types. Don’t just use simple sentences. 

Incorporate complex structures like "Even though..." or "In contrast to..." to show the evaluator you have advanced control over the language. 

There is no "magic number," but high frequency matters. Frequent typos make your writing hard to follow. 

The Solution: Always save the last 2 minutes of your time for a "quick scan." 

Look specifically for subject-verb agreement and plural "s" endings—these are the most common "silent" score killers.