JPS5824833U - abacus - Google Patents

abacus

Info

Publication number
JPS5824833U
JPS5824833U JP11590381U JP11590381U JPS5824833U JP S5824833 U JPS5824833 U JP S5824833U JP 11590381 U JP11590381 U JP 11590381U JP 11590381 U JP11590381 U JP 11590381U JP S5824833 U JPS5824833 U JP S5824833U
Authority
JP
Japan
Prior art keywords
bead
arithmetic
abacus
digits
beads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11590381U
Other languages
Japanese (ja)
Inventor
和夫 西川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP11590381U priority Critical patent/JPS5824833U/en
Publication of JPS5824833U publication Critical patent/JPS5824833U/en
Pending legal-status Critical Current

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  • Electrically Operated Instructional Devices (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図は平面図である。１・・・−珠、２・・・桁、３・・
・十位枠、４・・・天枠、５・・・五珠、６・・・梁、
７・・・定位点、８・・・−珠、９・・・布枠、１０・
・・布枠、１１・・・地枠、１２・・・−珠算エリア、
１３・・・四つ珠算エリア。The figure is a plan view. 1...-bead, 2...digit, 3...
・10th frame, 4...Ten frame, 5...5 beads, 6... Liang,
7... Orientation point, 8...-Bead, 9... Cloth frame, 10.
... Cloth frame, 11... Ground frame, 12... - abacus area,
13...Four points area.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 算盤上に、それぞれ−珠５個より成る桁を２桁ごとに区
切った十位枠を持つ一珠算エリアと各桁五珠１個−珠４
個より成る四つ珠算エリアを設けることにより、幼少な
学習者に対して一位数、五位数、十位数間の数学的関係
、およびくり上がり、くり下がりを含む加減算の演算原
理を視覚的に把握させ、五位数を基本とする伝統的な四
つ珠算法の習得、および初歩的な算数の理解を容易なら
しめる特徴を有する算盤。On the abacus, there is a one bead arithmetic area with a 10th place frame with digits each consisting of 5 beads divided into 2 digits, and 1 bead for each digit - 4 beads.
By providing a four-piece arithmetic area, young learners can visually understand the mathematical relationships between ones, fifths, and tens, and the principles of addition and subtraction, including up and down. This abacus has features that make it easier to understand basic arithmetic, as well as to learn the traditional four-bead arithmetic method based on five-place numbers.
JP11590381U 1981-08-03 1981-08-03 abacus Pending JPS5824833U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11590381U JPS5824833U (en) 1981-08-03 1981-08-03 abacus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11590381U JPS5824833U (en) 1981-08-03 1981-08-03 abacus

Publications (1)

Publication Number Publication Date
JPS5824833U true JPS5824833U (en) 1983-02-17

Family

ID=29910150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11590381U Pending JPS5824833U (en) 1981-08-03 1981-08-03 abacus

Country Status (1)

Country Link
JP (1) JPS5824833U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6004297B1 (en) * 2015-11-06 2016-10-05 吉則 早川 Multiplication and division abacus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6004297B1 (en) * 2015-11-06 2016-10-05 吉則 早川 Multiplication and division abacus

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