9 to 11 years ...............................................................................................................................................................................................................................................................................

Books and resources in this category cover math concepts for kids in grades 3 through 5. Topics include focus on developing understanding of multiplication and division strategies, fluency with multi-digit multiplication, dividing to find quotients involving multi-digit dividends, extending division to 2-digit divisors, integrating decimal fractions into the place value system, developing understanding of operations with decimals to hundredths, developing fluency with whole number and decimal operations and developing understanding of volume; developing understanding of fractions, fraction equivalence, addition and subtraction of fractions with like denominators, multiplication of fractions by whole numbers, and of division of fractions in limited cases; developing understanding of the structure of rectangular arrays and of area, describing and analyzing two-dimensional shapes; developing an understanding that geometric figures can be analyzed and classified based on their properties, such as having parallel sides, perpendicular sides, particular angle measures, and symmetry.