When the teacher handed out this assignment she told the students "Complete this worksheet as fast as you can. I know we have gone over single digit addition a lot and these numbers are really easy, it will help you to do double digit addition. You need to practice your single digit addition and get really good at it to help you with your double digit addition." Right there, she already challenged the students and put pressure on them. By telling them that the numbers were really easy and to complete it quickly. I think this could have had an effect on this student in particular and other students I saw who missed a few simple problems.
This student overall did a very good job. However, one of the problems I noticed in her work was with the solutions that were in the double digits, and also numbers dealing with 9. I think one of the strategies that could help this student mainly, is to first slow down. I know the challenge was to complete the task quickly, but because she was counting on her fingers, she missed a few of the answers. I also think it would benefit this student to go over adding numbers with 9. Since 9 is a number that children typically learn a pattern with, it might help this student if she thought about a problem such as 9+4, as 10+4-1. Sometimes students have to count over the number first and then take away how many is leftover. I think this student just needs some more practice with these smaller numbers but in a different style. Seeing these numbers in a word problem might also benefit the student instead of having to memorize these numbers even though we typically have them memorized by the time we are out of elementary school.
I think a task like this is a chance for you to reflect on what it means to design a task that is to be completed as quickly as possible. What are the affordances and the constraints to designing a math task like this? What does it allow you to do and not allow you to do? What effect might it have on the students?
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