Big Ideas: Decomposing of numbers. Equal groups and remainders. This lesson uses place value to solve and explain division. Students build off their knowledge from third grade of division types and their new learning of place value in the fourth grade, They develop, discuss, and use efficient, accurate procedures to find quotients involving multi-digit dividends .Students also apply their understanding of models for division, place value, properties of operations, and the relationship of division to multiplication Vocabulary: decompose, remainders, place value, dividend, divisor, quotient Special Materials: Base-10 blocks, optional