Nowadays I get a ton of essays which mix up the verbs “value” and “evaluate.”
Here’s what you need to know:
Evaluate (v) = to assess, judge, grade, etc.
Value (v) = to consider or rate highly, or consider of importance
If you write “my boss valued my English skills” it means that your boss considered your English skills important. He liked them.
If you write “my boss evaluated my English skills” it means he assessed your English skills. Maybe he gave you a test. The sentence does not imply whether they were good or not… just that he tested you.