This is a set of “pattern blocks” I made for my wife's special education classroom.  They have a number of children with reduced fine motor skills, and those children found the standard pattern blocks difficult to use due to the small size and thin material they were made of.  This set is designed at 1.5x the scale of the original set, and 3/8" thickness to be easier to manipulate.  All ratios are the same, so the same patterns can be produced, just at a larger scale.