i have native level english. i can improve my students on grammar, writing skills, public speaking and communication

i have a Masters of Education: Curriculum Studies Degree which has helped work as a curriculum designer, developing curriculum materials used by primary and secondary education pupils. i have taught in Primary and Secondary Education Institutions in Zimbabwe for 20 years. I am a public Speaker, Tv program host and a radio presenter. I have participated in radio lessons and tv lesson development. Module development, examination setting and examination marking. all this is grounded and done in English language.