Among 8th graders, NCLB had a moderately large and statistically significant impact in data analysis and marginally significant effects in number properties and geometry. (educationnext.org)
At KS2 children have two problems they have to solve involve number properties. (tes.com)
Practice 1: Use measurement activities and number lines to help students understand that fractions and decimals are numbers and share number properties. (greatmiddleschools.org)