Ontario. Dept. of Education · Toronto : W. Briggs · leaf 88
Airr When the 6 by 6 squares are inreadiness, each pupil should fold andcrease his so as to make sixteen equalsquares, to help him to space evenly theunit that is to be repeated. The unit may be chosen for theclass by the teacher, or each pupil maychoose his own from a number of suit-able ones…
Drawing
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