ics ▁Te aching ▁at ▁More house ▁College . ▁Alexander ▁is ▁also ▁Associ ate ▁Director ▁of ▁the ▁James ▁King , ▁Jr . ▁Institute ▁for ▁Student ▁and ▁Fac ulty ▁Eng agement ▁" Comm unic ating ▁by ▁Th inking ▁Effect ively ▁in ▁and ▁About ▁Mathemat ics " ▁( Comm unic ating ▁TE AM s ). ▁He ▁is ▁currently ▁on ▁leave ▁from ▁his ▁fac ulty ▁position ▁as ▁Ass istant ▁Professor ▁of ▁Mathemat ics ▁and ▁Statistics ▁Education ▁at ▁the ▁University ▁of ▁San ▁Francisco . ▁ ▁Alexander ▁grew ▁up ▁in ▁Charlotte , ▁North ▁Carolina , ▁and ▁has ▁worked ▁as ▁a ▁teacher ▁in ▁Har lem . ▁In ▁March ▁ 2 0 1 9 , ▁Alexander ▁held ▁his ▁student ' s ▁baby ▁in ▁class , ▁the ▁news ▁of ▁which ▁was ▁twe et ed ▁by ▁a ▁student , ▁and ▁was ▁picked ▁up ▁by ▁numerous ▁national ▁and ▁international ▁news ▁media . ▁ ▁Education ▁Alexander ▁obtained ▁his ▁b ach elor ' s ▁degree ▁at ▁University ▁of ▁North ▁Carolina ▁at ▁Chap el ▁Hill ▁in ▁ 2 0 0 7 , ▁where ▁he ▁double ▁major ed ▁in ▁mathematics ▁and ▁soci ology , ▁and ▁his ▁MA ▁in ▁teaching ▁mathematics ▁at ▁New ▁York ▁University . ▁He ▁earned ▁his ▁MS , ▁M Ph il , ▁and ▁Ph D ▁in ▁mathematics ▁and ▁education ▁at ▁Columbia ▁University , ▁gradu ating ▁in ▁ 2 0 1 5 ▁under ▁the ▁super vision ▁of ▁Er ica ▁N . ▁Walker . ▁ ▁Research ▁Alexander ' s ▁special ties ▁lie ▁in ▁mathematics ▁education , ▁statistical ▁and ▁mathematical ▁model ing , ▁and ▁social ▁networks ▁and ▁graphs .