Does anyone know how to calculate the words read correct per minute when checking a student's rate for oral fluency? I am doing a research project and trying to figure this out. I intervened by modeling how to read fluently using echo and choral reading to first graders. I used a stopwatch to time how many words each student read in one minute and then took that number and subtracted it by the number of errors made when reading. That gave me the number of words read correct per minute (WCPM). At least I think it did. However, here's my problem...each book they read (guided reading books) varied in how many words were in each book. So, some books only had 26 words, others had 52 words, etc. I hope someone knows how to do this and can help me determine if I am right. I would think the number of words read correctly would increase each time, but what if a book has only 26 words and they read all the words correctly while another book had 55 words and they read 51 words correctly in a minute. How does this show that they are improving in their readings? Hope this makes sense. I am quite confused. Thanks so much!