I am student teaching in a school that uses Math in Focus. On the post assessment for Chapter 1 (numbers to 1,000 - understanding place value, base 10, standard form, expanded form, greater than, less than, put numbers in order, number patterns), this was the last question: Melvin is getting ready for a swimming race. Every day, he swims 5 more meters than the day before. On the 5th day, he swims 50 meters. How many meters did Melvin swim on the first day? (Below the q, there are 5 boxes labeled "first day," "second day," etc., with "50" written inside the 5th box. There are arrows pointing backwards from the 5th box to the 4th box, 4th to 3rd, etc. Below those boxes is a work space and a fill in: "Melvin swam ___ meters on the first day." Melvin keeps swimming 5 more meters every day. When will he swim 70 meters? (Below this question is a work space and a fill in: "Melvin will swim 70 meters on the __ day.") Most of the students got it correct. I pulled 3 of the students who didn't (individually) to pull apart the question, circle the word clues, number clues, and talk through what is happening and what to do to find the answer. One student was able to talk himself through it and figure it out (yay!), but the other two were completely stymied. I showed it to my husband and he said that it seemed more like a 3rd grade problem, and the wording seemed intentionally tricky. Since it was the last question in the assessment, maybe it's supposed to be more of a stretch, for differentiation. What do you think? Is my class full of math geniuses or are these students struggling behind?