Suggestive State Course of Study for Kindergarten-Primary Grades, Submitted at the Request of the County and City Superintendents of SchoolsCalifornia State Board of Education, Katherine L. McLaughlin · First published 2023Open the Tome
A study of number ability in children of ages three to sixKatherine L. McLaughlin · First published 1935Open the Tome
Fact and Story ReadersHenry Suzzallo, George Earl Freeland, Katherine L. McLaughlin, Ada M. Skinner · First published 1931Open the Tome
Number projects for beginnersKatherine L. McLaughlin, Eleanor Troxell · First published 1923Open the Tome
