Listening & Learning/ Marcy's Dots
The Marcy's Dot article discussed ways in which students answered a question entailing the Dots. Students are given the same problem we were in class- 2 dots, 6 dots, and 12 dots. Students were asked to solve for the 20th step and the article discussed the reasoning students provided. If students simply state their answer, it does not make sense. However, if they write each step or a formula to show how they got the answer to the 20th step, it is more understandable as to how they got the answer. The next NAEP problem given to students was about soldiers on the bus. The answer ended up being 32, and no answers with fractions or decimals were accepted because you can not have part of a bus. The researchers were concerned about the low percentage of students who answered the question correctly because students at the age of 13 should be able to round to the next whole number to fit people on the bus. This article focused a lot on tasks given...