## Mathematics Stagnation Nation Series for the Usa (Part 3) the Collective Math Stagnations of the Grades 4th and 8th in the Big Cities (Or the School Districts Based on Tuda of Naep) of the Usa Over a Decade: Their Confirmations, Time Lags, Math Poverty

**Authors:** Dongchan Lee

In this paper whose charts were directly borrowed from the NAEP website on the National Report Cards, I noticed some very striking features about the national and state math stagnations in the USA, especially for 2005-2015 during which most of the citywide math stagnations seemed to have taken place. We examined the NAEP math data from 2003 to 2015 for the math grades 4 and 8 from 21 big cities (or districts). Although there are some variations with the time lags of perhaps 2-4 years (Los Angeles or Chicago) or even 6 years (for the case of District of Columbia), there were strikingly consistent, emerging patterns about the math stagnations. The overall math stagnations took their roots around 2005 for the math grade 4 and this was observed for the math grade 8 in about 4 years later and this was very consistent in almost all TUDA participating cities and districts. Thus the main outline for the stagnations were 2005-2009. The conclusion after examining the 21 cities is that 18 of them have confirmed the hypothesis of the math stagnations already by 2015. So the confirmation of the hypothesis of the math stagnations in all these cities is at least 86% and most likely 90-100% will be by 2017-2019 most likely. The math stagnations are here across the USA even in the city and district levels and very unlikely to go away. We discussed the implications of about 4 year time lags impacting the math stagnations to grade 8 with the implications of the Common Core math standards of the USA 2011-2015.

**Comments:** 32 Pages. drafr 1.2

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### Submission history

[v1] 2017-02-07 13:52:37

[v2] 2017-02-08 13:20:29

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