Teaching systems comprising printed teacher's resource guides and printed student workbooks featuring educational activities in the fields of mathematics, reading, language arts and science; printed educational materials in the form of teaching tiles marked with numbers, letters and designs for use in the fields of mathematics, reading, language arts and science and tile organizing cases specially designed for holding the same

'activ':15 'art':23,50 'case':56 'compris':3 'design':40,58 'educ':14,27 'featur':13 'field':18,45 'form':31 'guid':8 'hold':60 'languag':22,49 'letter':38 'mark':35 'materi':28 'mathemat':20,47 'number':37 'organ':55 'print':4,10,26 'read':21,48 'resourc':7 'scienc':25,52 'special':57 'student':11 'system':2 'teach':1,33 'teacher':5 'tile':34,54 'use':42 'workbook':12

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