1. Language of instruction in early school years should be the language of the school's catchment area for smooth transition from home to school hence all teachers in pre-schools should be from local area and must teach English as a subject just like any other. Produce learning materials in the local language for different parts of the country. English should become a language of instruction in middle level/upper primary classes (preferably from Grade 4 where it is assumed that the children can by now understand and communicate in the English language as they continue to master it).
2. Parents, be proud of your first/native language, teach your children and let them master it before you introduce them to any other languages (official or national language- great challenge in cosmopolitan urban centres/towns). This creates a sense of belonging and a child identifies with his roots and will be ready to learn new things once out of the nest. I must admit this is practically challenging.
3. If the children cannot learn in a language that you are using to teach them, then you must teach them in a language that they understand so that they can learn. Otherwise you are wasting your time and energy and will never realize the desired learning outcomes.