John Rose shows us more math on the abacus.

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3/9/2023

John Rose from TSBVI joins to give instruction on the abacus.

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12/8/2022

12/7/2020 John Rose, TSBVI. Most elementary students benefit from instruction using real objects (manipulatives) alongside abacus instruction, and students with visual impairments may benefit from these materials on a more consistent basis. Base-10 manipulatives can be used to directly transfer place value, counting, and operations concepts to the abacus. This presentation will demonstrate these strategies using base-10 blocks, an APH work-play tray, and the Cranmer abacus. Click the Attachment button to download a transcript and/or handout.

6080

12/7/2020

Ariana subtracts 38 - 16 on the Cranmer Abacus. She uses the Rule of Five for this process. She finds the correct answer of 22.

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2/1/2013

Ariana adds 42 + 57. She reads the problem from her worksheet, written in Nemeth. She uses the "Rule of 4" for her exchanges and arrives at the correct answer 99. She records her answer on the Perkins Braillewriter in correct Nemeth Code. You can see she is still uncertain about the Nemeth but her "guess" was right.

18

2/1/2013

Rosa adds 32.2 + 31.08. This is an easy problem and she did much harder ones later in the week.

4

2/1/2013

Adriana is just beginning to add values with decimals. Here she adds 32.2 + 31.08.

Original contributor Margaret Edwards

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1/29/2013