Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: History Of Rigor: A Review Of 20th Century Science Education   "Rigor" is an often sought after but ill-defined concept in education. This
work reviews several models of rigor from current literature before proposing a
tool which is used to analyze science education throughout history. The
20\textsuperscript{th} century science education in the United States was
subject to changing sociopolitical motivations about the use of science both in
general and for students. These factors as well as developments in theory of
learning and broad education reforms had changing affects on the level of rigor
in science education. This work analyzes the theoretical level of rigor of
science education in the US based on two main motivating factors for science
education; science as a social endeavor and science as a discipline, throughout
the 20\textsuperscript{th} century.

10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an