Teacher Demonstration Devices and Teacher and Student Instruments for Teaching Weights and Measures, Mathematics and Science-Namely, Transparencies, Balances, Rules, Balance Weights, Volumetric Measures, Linear Measures and Theodolites

'balanc':20,22 'demonstr':2 'devic':3 'instrument':8 'linear':26 'mathemat':14 'measur':13,25,27 'name':18 'rule':21 'scienc':17 'science-nam':16 'student':7 'teach':10 'teacher':1,5 'theodolit':29 'transpar':19 'volumetr':24 'weight':11,23

Printed Educational Materials Sold as a Kit Dealing with the Subjects of Weights and Measures, Mathematics and Science-Namely, Cards, Templates, Overlays, Sheets, Charts, Game Rules, Posters, Course Outlines and Lesson Plans; Course Notes, Illustrations, Workbooks, and Course Books for Teachers and Students

'book':40 'card':21 'chart':25 'cours':29,34,39 'deal':8 'educ':2 'game':26 'illustr':36 'kit':7 'lesson':32 'materi':3 'mathemat':16 'measur':15 'name':20 'note':35 'outlin':30 'overlay':23 'plan':33 'poster':28 'print':1 'rule':27 'scienc':19 'science-nam':18 'sheet':24 'sold':4 'student':44 'subject':11 'teacher':42 'templat':22 'weight':13 'workbook':37

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