Counting Objects Using Arrays

This video tutorial teaches how to count objects efficiently using arrays and skip counting. It begins by explaining skip counting, which involves counting by numbers other than one, using examples like counting chicken legs in pairs. The concept of arrays is introduced as an orderly arrangement of objects in rows and columns, making counting easier. The video also highlights that not all numbers can form arrays, using the example of 11 tiles. Finally, it demonstrates how to use arrays and skip counting together for faster counting, supported by repeated addition sentences.

Explain why the number 11 cannot be arranged into an array.

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What is a repeated addition sentence and how is it related to counting in arrays?

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