【實用教育app】Base Blocks|最夯免費app

BASE BLOCKS: A K-6 interactive-math manipulative from Utah State University's National Library of Virtual Manipulatives (NLVM). Base blocks are used to illustrate concepts of place value, addition, and subtraction in our base-10 system of numeration.• Arrange the base-blocks into groups of 1’s, 10’s, 100’s to represent a given number.• Illustrate the addition of numbers using base blocks and the “carrying” or “regrouping” concept.• Show the subtraction of numbers using base blocks and the “borrowing” or “regrouping” concept.• Teachers are able to create and save their own exercises.

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