She taught preliminary versions of programs to students in her classroom, kept detailed notes on problems students encountered during lessons, collected data on student performance, and modified lessons. (mheducation.com)
PRELIMINARY VERSION DO NO CITE WITHOUT PERMISSION FROM AUTHORS Estimating the Effect of Leaders on Public Sector Productivity: The Case of School Principals (semanticscholar.org)
Reptile brains produce only a very preliminary version of the oxytocin molecule. (discovermagazine.com)