Sight words can be very difficult for individuals with Dyslexia. Sight words are words that do not follow spelling rules or that are borrowed from foreign languages. This is why sight words are so difficult. They require memorization. Therefore, it is very important to provide students with a multisensory approach to study sight words. This can include visual, auditory, verbal and kinesthetic.
These can be combined to keep it simple. Write the word on an index card with the challenging part of the word in red. Allow the student to see the word (visual), look at a blank place on a wall and spell it out loud (auditory & verbal), write it on a table (carpet or sand) with the dominant hand index and middle fingers (kinesthetic), and then write it on paper. Do each step two times. Give them a break and then have them spell it without looking at the card.
Another approach that some students respond to is Cover-Copy-Compare. Make a chart with 3 columns. In the first column write your student’s sight words. Give them a visual of the word as they read it, then cover the word. In the second column the student will copy the word while it is covered. Uncover the word and allow the student to compare their spelling with your spelling. If it is correct, move on to the next word. If it is not correct, they will write it correctly in the 3rd column. You can insert the chart in a page protector and have your student write with dry/wet erase marker so that you can reuse the chart.
Students have their own unique learning style. Some need a quiet area to sit in a chair with a table and some need to stand and move around more. The only right way is the right way for your student. You as a parent know your child best. You are with them in all different situations and know what an ideal studying area will serve them best.
Keep in mind, if your child has Dyslexia, spelling sight words may always be a challenge. It is more important that they are able to read them. Spelling tends to improve the slowest when a student is receiving the correct remediation.