I have an associate degree in computer science, a bachelor degree in mathematics, and a master of education degree in curriculum and instruction. I have also earned my teacher certification in mathematics, a principal certification and a Total Experience Learning certification. I am currently a 7t... (read more)
...Having not taken the subject since about 1980. It took me two months to refresh my memory. I could remember solving a system of linear equations by elimination but could not remember solving a system of linear equations by substitution. (read more)