Sight words are important to practice in first grade because it will help the students with their reading. These are words that children are expected to learn by sight because many of them cannot be sounded out (example: where, they, why). Below are a list of videos that children can watch to help master these sight words. They can even write them down or use them in a sentence while they are watching the videos. 

https://www.youtube.com/watch?v=dJtjkn59CFo

https://www.youtube.com/watch?v=9eQgXJm8FsM

https://www.youtube.com/watch?v=DtnoPav-O5E

https://www.youtube.com/watch?v=59mBKAJr_i4&list=PLoGqrhFes7uiCDPog3J5KzqkB_g2c8sxR&index=3

Here is lists of words that first graders are expected to know by the end of first grade:

https://sightwords.com/pdfs/word_lists/dolch_prek.pdf

https://sightwords.com/pdfs/word_lists/dolch_kindergarten.pdf

https://sightwords.com/pdfs/word_lists/dolch_1st.pdf