Love this poem. Some of my suggestions for the attitude/tone are reflective, calm and thoughtful, inquisitive and hopeful and even some sadness.
After solving my brother’s math equation, my father called me a genius.
Anna wrote very fast because she was extremely focused.
Sam reminded me that I needed to view the problem from a different perspective.
After hearing Emily sing, the entire class was stunned that a girl so quiet would sing so loud.
I am going to say dialect but it could be standard
Than. You use than when comparing things, and then is used when you're describing time.