Very Satisfying Shackman Fraction Learner Set, Complete with Spinner, 1960s screen shot which I think just makes

which I think just makes them better

all in Albany NY

This one--labeled "G" in what surely was a whole series--makes me think he had tired of the textile designing exercise by this point

And earned a Ph

Very Satisfying Shackman Fraction Learner Set, Complete with Spinner, 1960s screen shot which I think just makesI've had just a couple of these Shackman "Fraction Learner" sets over the years and will always scoop them up when I come across them. Definitely an excellent tool for teaching fractions as portions of a whole, with six circles divided up into differently sized slices, and a corresponding spinner to direct activity but also just excellent aesthetically and design wise, and there is great pleasure in mixing and matching the segments comprising each