Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 3 · column 2 of 5 · from the scan, no model involved
ment between schools with high proportions of kindergarten alumni and schools with low proportions.
2. Pre-schools (kindergartens) have little permanent effect on cognitive (knowledge) development.
3. Head Start children’s advantage over non-Head Start children did not persist beyond the first grade.
4. Preschool cannot be expected to narrow the gap between the rich and poor or between whites
97.9%