Sharyn Efimoff

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  Drop 10: Math Game 2.0

  Sharyn Efimoff - 프리웨어 -

  Drop 10 is an educational math game that reinforces the concept of adding up to 10. Typically, children begin to memorize addition facts up to 10 in the early elementary school years, around 1st and 2nd grade. 더 많은 정보 ...