JPH0258775U - - Google Patents
Info
- Publication number
- JPH0258775U JPH0258775U JP13809388U JP13809388U JPH0258775U JP H0258775 U JPH0258775 U JP H0258775U JP 13809388 U JP13809388 U JP 13809388U JP 13809388 U JP13809388 U JP 13809388U JP H0258775 U JPH0258775 U JP H0258775U
- Authority
- JP
- Japan
- Prior art keywords
- rotary plate
- board
- formula
- arithmetic
- board surface
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Displays For Variable Information Using Movable Means (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Description
第１図は本考案に係る算数練習器の一実施例の
正面図、第２図は背面図、第３図は表板の正面図
、第４図は回転板の表を示す正面図、第５図は裏
板の正面図、第６図は回転板の裏面を示す正面図
である。
１０……回転板、１２……表板、１２ａ，１２
ｂ，１２ｃ……窓、１４……裏板、１４ａ，１４
ｂ……窓、１６ｂ，１６ｃ……挟持具、１８……
つまみ部。
Fig. 1 is a front view of one embodiment of the arithmetic practice device according to the present invention, Fig. 2 is a rear view, Fig. 3 is a front view of the top plate, Fig. 4 is a front view showing the front of the rotary plate, FIG. 5 is a front view of the back plate, and FIG. 6 is a front view showing the back surface of the rotary plate. 10...Rotating plate, 12...Top plate, 12a, 12
b, 12c... window, 14... back plate, 14a, 14
b... window, 16b, 16c... clamping tool, 18...
Knob section.
Claims (1)
周方向に向く小区画部分を形成し、これら小区画
部分に算数の問題式を表示する際、問題式で表示
する数を●等の具体的表示物を利用して表示し、
板面の外周側に位置する小区画部分に対しては、
たとえば、被乗数が９，８等のようなより大きな
数を表示し、板面の内周側に位置する小区画部分
には２，１等のより小さな数を表示するようにし
た回転板と、 回転板の中心を支持して回転板を回動自在に支
持し、回転板の少なくとも算数の問題式等が記入
された板面をほぼ全体にわたつて覆うと共に、前
記小区画部分の配置位置に対応する窓が透設され
、回転板を回動することによつて問題式および問
題式に対応した答を表示する表示板と、 を有することを特徴とする算数練習器。[Claims for Utility Model Registration] When dividing the board surface into circumferential and radial directions to form small sections with the longitudinal direction facing the circumferential direction, and when displaying arithmetic problem formulas on these small sections, the problem arises. Display the number displayed by the formula using concrete indicators such as ●,
For the small section located on the outer periphery of the board surface,
For example, a rotating board in which the multiplicand displays larger numbers such as 9, 8, etc., and smaller numbers such as 2, 1, etc. are displayed in small sections located on the inner peripheral side of the board surface; The center of the rotary plate is supported so that the rotary plate can be freely rotated, and at least the surface of the rotary plate on which arithmetic problem formulas, etc. are written is covered almost entirely, and at the location of the small section. 1. An arithmetic practice device comprising: a display board having a corresponding transparent window and displaying a problem formula and an answer corresponding to the problem formula by rotating a rotary plate;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13809388U JPH0526598Y2 (en) | 1988-10-21 | 1988-10-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13809388U JPH0526598Y2 (en) | 1988-10-21 | 1988-10-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0258775U true JPH0258775U (en) | 1990-04-26 |
| JPH0526598Y2 JPH0526598Y2 (en) | 1993-07-06 |
Family
ID=31400111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13809388U Expired - Lifetime JPH0526598Y2 (en) | 1988-10-21 | 1988-10-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526598Y2 (en) |
-
1988
- 1988-10-21 JP JP13809388U patent/JPH0526598Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526598Y2 (en) | 1993-07-06 |
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