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Vestavia Hills Elementary Central,
"Lattice Multiplication" is another strategy to help multiplication make sense. Fourth grade students demonstrate and explain the steps of lattice multiplication.
Content Areas: Math
Alabama Course of Study Alignments and/or Professional Development Standard Alignments:
[MA2013] (4) 10: Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models. [4-NBT5]
[MA2013] (5) 8: Fluently multiply multi-digit whole numbers using the standard algorithm. [5-NBT5]
[MA2013] (5) 9: Find whole-number quotients of whole numbers with up to four-digit dividends and two-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models. [5-NBT6]