el-Using open education resources to teach elementary math 2013-10-21 https://www.edutopia.org/blog/common-core-math-elementary-resources-matt-davis
el-Finding the Beauty in Math 2013-10-15 https://blogs.kqed.org/mindshift/2013/10/finding-the-beauty-in-math/
el-How to Help Every Child Find Success in Math 2013-10-13 https://www.education.com/magazine/article/mindset-success-math/
el-Why Is Doing Arithmetic With Fractions So Difficult? 2010-10-02 https://www.psychologytoday.com/us/blog/talking-apes/201709/why-is-doing-arithmetic-fractions-so-difficult