FCCERS-R: Math/number 7.1 - Materials for all age groups are rotated at least monthly (Ex. . . different objects to weigh; math games changed).
ECERS-3: Math materials and activities 7.3 - Some appropriate math activites requiring more teacher input are used (Ex: sort seashells by type on a chart and compare more and less; read thermometer to chart daily temperature; measure while doing cooking activity).