Texas School for the Blind & Visually Impaired Curriculum Coordinator Debra Sewell introduces the Abacus series "Getting Started with the Counting Method."
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(1.1) Abacus: Series Introduction by Debra Sewell of TSBVI
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Texas School for the Blind & Visually Impaired Curriculum Coordinator Debra Sewell introduces the Abacus series "Getting Started with the Counting Method."
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