the.com/learning gap
the space between what you were taught and what actually stuck.
means the measurable difference between where a student's skills should be and where they actually are.
from education researchers started tracking it seriously in the 1960s, when standardized testing made it possible to quantify what earlier generations just called falling behind.
covid effectus students lost half a school year in math
compounds yearlyunaddressed gaps widen, they rarely stay flat
not about iqmostly tracks access, not ability
for instance
covid slide 2020-2022 — mckinsey estimated a 4-month average learning loss worldwide
summer slide — us kids lose roughly a month of math skill every summer break
finland vs us pisa — finland closed socioeconomic gaps that us scores still show sharply