educational kits consisting of printed cards, teachers' manuals, answer sheets, markers, rulers and re-usable, wipe-clean plastic sheets on which the students write answers and check them against answer sheets, used by children to study mathematics and the English language

'answer':9,27,32 'card':6 'check':29 'children':36 'clean':19 'consist':3 'educ':1 'english':42 'kit':2 'languag':43 'manual':8 'marker':11 'mathemat':39 'plastic':20 'print':5 're':15 're-us':14 'ruler':12 'sheet':10,21,33 'student':25 'studi':38 'teacher':7 'usabl':16 'use':34 'wipe':18 'wipe-clean':17 'write':26

SCHOOLHOUSE

Owner

Goods & Services