... be sufficient for differentiation. The tabular method of calculation that illustrates how the distributive law applies to multiplication. Also a grid method called the gelosia that dates back to the twelfth century. Sometimes it is known as Chinese, lattice or grating multiplication. This method depends on a grid so that place value is contained within its structure. The Children will need to have specific skills, facts and concepts to help them. Organizational Skills: Formation, orientation and alignment of numerals; procedure for setting up single and multi-digit multiplication grid. Place Value: Concepts applied to addition, subtraction and multiplication. Numeration: Base 10 numbers 1-999, Cardinal vs. Ordinal numbers, meaning and function of zero in addition, multiplication and place value. Multiplication table facts are essential with this type of strategy, also having the skill to be able to partition numbers. These children will need to have some previous knowledge of how to multiply ...

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