3.MDA.5b
Measure area by building arrays and counting standard unit squares.
Khan Academy ResourcesIntro to multiplication: FAQArea: FAQArea of rectangles reviewBasic multiplicationFind area by counting unit squaresArea and perimeter word problemsCompare area with unit squaresFind a missing side length when given area Area of rectanglesArea and the distributive propertyArea of rectangles with partial arraysDivision with groups of objectsDecompose figures to find areaUnderstand multiplication using groups of objectsRelate repeated addition to multiplicationUnderstand multiplication with arraysTransition from unit squares to area formulaArea and perimeter situationsUnderstand decomposing figures to find areaCompare areas by multiplyingMultiply using groups of objectsCreate rectangles with a given areaMultiply with arraysUnderstand areaCompare area and perimeterArea and the distributive propertyComparing areas and perimeters of rectanglesMultiplication as repeated additionProperties and patterns for multiplicationDecomposing shapes to find area: subtractComparing areas of plots of landMeasuring rectangles with different unit squaresCreating rectangles with a given area 2Multiplication with arraysMore ways to multiplyCreating rectangles with a given area 1 Intro to area and unit squaresCounting unit squares to find area formulaVisualizing division with arraysMultiplication as equal groupsDecomposing shapes to find area: grids Decomposing shapes to find area: addFinding missing side when given areaTransitioning from unit squares to area formula

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