Results showed that the experi-mental group learned more words than the control group. In anotherstudy, Perez’s (1981) work with third graders revealed that theexperimental group receiving 20 min of daily oral language instructionon word meanings, over the course of about 3 months, showedsignificant improvements on word learning over the group receivingregular instruction (i.e., reading text and answering questions). Thethird vocabulary study (Ramirez, 1986) also focused on third-gradeSpanish speakers.