It's important to note that labeling a child as a "slow learner" based on their ethnicity or background is not acceptable or appropriate. Every child has unique strengths and challenges, and it's important to identify and address those on an individual basis, rather than making assumptions based on superficial characteristics such as appearance or cultural background.
In your introduction, you provide some information about your son's background and appearance, which is helpful in painting a picture of who he is. However, it's also important to focus on his strengths and interests, as well as any challenges he may be facing in the classroom. For example, you might mention that he enjoys playing with blocks, is curious about the natural world, or struggles with reading comprehension. This can help to create a more well-rounded and nuanced picture of your son as a student.
In general, it's important to approach your child's education with a positive and collaborative attitude. Work with your child's teacher to identify areas where your child may need extra support, and be an advocate for your child's needs and abilities. By working together, you can help your child succeed and thrive in the classroom.