KR20150130775A - the multiple using steam learning table - Google Patents

Abstract

The present invention relates to a multipurpose steam learning table. According to the present invention, a multipurpose steam learning table comprises: a frame unit composed of a support frame, at least one side frame, and an upper plate frame; a rotation unit including a rotation shaft hole and a rotation shaft; a table unit composed of at least one flat plate type table (133); a wedge unit composed of a plurality of wedges; a storage unit (150) including a first storage unit and a second storage unit; a scroll unit (211) having a scroll shape; a note unit (220) composed of a note for subjects (221), a note for use (222), and the like; a soft table unit (230) to be replaced by a transparent plate (231), a non-transparent plate (232), a rubber plate (233), and the like to be used; and a soft unit (200) composed of a storage content unit (240), thereby enabling steam learning and various play such as billiards, sand art, go, Korean chess, or the like.

Description

The multi-use steam learning plate

The present invention relates to a multi-purpose steam learning plate. More specifically, the study board is placed on a student desk in accordance with steam education and used as a study board for art, mathematics, science, music, and Korean. And is a technique relating to a versatile steam learning board capable of storing functions and various play functions.

  In the conventional desk, since the upper plate is fixed and integrated with the legs, partial replacement is impossible. Therefore, when the scribbles became scribbled or scribbled, the entire desk had to be replaced. Therefore, most of the students in the classroom use the old desk full of old desk and slippers from the new school year because the students are very bad at scribbling, and because of the lack of budget, Which was a big problem.

  In addition, the conventional desk has a drawback in that only a minimum number of articles are stored, and a separate locker is used. In addition, the desk drawer is useless because it has no casement. When the contents are deep, I can not understand what kind of objects there are. In order to take out one object, it is necessary to take out all the objects to find the object.

  Also, since it is always open without a drawer, when the desk is moved at the time of cleaning, pouring of contents is a big problem.

Most of the students are using the desk drawer as a trash bin, or they are left dirty.

  As the desk was in this way, it was hard to dream of having the equipment ready for the week, putting it in a desk drawer, and using it immediately.

  In addition, in order to make the classroom environment beautiful, it is possible to do learning in the classroom where seasonal feeling is changed by changing the desk pallet every season.

For this reason, no matter how beautiful the classroom is, it is not an educational environment at all. No matter how hard it is to organize the environment, there is not much room for a classroom full of old desk with many nicks.

  The desk looks like this, students sit on the floor, tread on their feet, and become a messy classroom environment. When the desk is used in this way, it is not desirable for education, and it is also emotionally deteriorated, and the utilization of the desk is lowered.

  Also, when I studied various subjects, I found out that the preparation materials such as grid paper, placer paper, English paper, English sketch book, sketchbook, clay, art brush, calligraphy brush, and paint are huge and can not be stored on the desk. there was.

 There is also a problem that the classroom filled with desks does not have the appropriate rides, so it is not possible to spend the time of rest usefully.

  It was also impossible to use the surface of the desk as a science learning tool, a math learning tool, an art learning tool, a music learning tool, an English learning tool, a Korean language learning tool, and a play tool.

  In addition, there was a problem to be solved, such as cheating on the examination time or reading time, or interrupting the reading, because there was no partition unless a separate desk cloak was used.

In addition, conventional learning boards that are used for learning purely in addition to the desk used in conventional classrooms have been produced in a separate size and shape and have been made for writing learning, drawing learning, etc., And it was impossible to use it for versatile purposes such as studying, desk pallet, covering plate and partitioning, storage, play equipment, and the like.

Prior art relating to the present invention

 1) Korean Patent Publication 10-2009-0008340 (2009.02.03) Multifunctional learning

2) Korea Patent Publication No. 1020100120207 (2010.11.30) Multipurpose desk pallet

  The present invention is directed to solving the above problems. It is intended to solve the above problems, and it is intended to provide STEAM (science), which helps learning various subjects such as mathematics, science, art, technolloge, engineering, art, mathmatics), and in addition to the steam learning function, a storage box is prepared so that the preparation materials for each grade can be prepared and used on the spot.

  Also, by putting it on the desk, the color of the table or the color of the scroll can be changed, so that the color of the surface of the desk can easily be transformed into the desired color by the season, thereby helping to decorate the beautiful classroom.

  Also, during the break, we want to provide a steam study board that can play various games and games such as sand art, magnet play, electric play, billiard, marbling, go, long term,

  In addition, personal tablets for smart education will be provided in the future, and a storage box for storing and using such devices and a storage box for storing various learning materials can be used in preparation for teaching with electronic textbooks.

  Also, when you take a test or read a book, you can install a cover plate on the front and sides of both sides so that you can turn into a book reading desk just like you can read a book in a reading room or take a test.

  We also want to provide a study board that can be used in a variety of sizes and shapes to suit various places or desks, such as portable study boards, mobile learning boards, blackboard study boards, and the like.

  At least one side frame connected to the base frame and the frame, and a frame part connected to the top frame connected to the side frame,

   A rotating part configured to include a rotating shaft hole through which the scroll rotating bar can be inserted at a predetermined position of the two facing side frames and a rotating shaft rotating through the rotating shaft hole;

  A table portion composed of at least one bearing block for fixing the table and at least one plate-like table 133 connected to the bearing block,

 A wedge portion composed of a plurality of wedges used in a gap between the upper plate frame and the table

 And a second accommodating portion 152 formed between the support frame and the table support block tables 133 on both sides, the first accommodating portion formed between the support frame, the side frame, the upper frame, and the table support block, (150) and

The rolled material 211 in the form of a roll is made of materials such as an asteroid 211, a vinyl 212, a fiber 213, a printed matter 214 and a common note 215

 A notebook 220 made up of a subject-specific notebook 221, an application-specific notebook 222, a general sheet 223, a general notebook 224,

 A soft table portion 230 (see FIG. 2) that can be used while replacing the transparent plate 231, the opaque plate 232, the rubber plate 233, the wooden plate 234, the fiber plate 235, the clay plate 236, )Wow

And a spring part 200 constituted of a glass bead 241, a barbecue, a button, a writing instrument, a magnet, an electric appliance, and the like, and a contents storage part 240 selected according to the purpose of each individual grade, To create a versatile Steam Learning Board

  In addition, the upper plate frame 111 is provided with at least one point / compartment 112 in such a manner that grooves are formed on one surface of the upper plate.

  The supporting frame 115 and the side frame 113 are connected to each other by an opening and closing device 114 such as a hinge and a fixing device 114-1 is separately provided so as not to be opened or closed depending on the purpose. Lt; / RTI >

   In addition, a cover plate 116 is provided on the outside of the support frame 115 so as to insert a cover plate, and an appropriate table can be selected and used as a cover plate 117 so as to be transformed into a book reading desk.

   Also, an eraser is attached to one side of the wedge part 140 so that it can be used as an eraser.

  Also, the storage unit 150 may be provided with one or more separate third storage units at the lower end of the support frame 115 for further storage.

  Also, the table portion 130 can be used while replacing the support blocks 131 having various heights.

  Further, the gap between the table part 130 and the upper frame 111 can be used or stored by interposing similar items such as the tablet PC, and used as a receptacle in which a billiard ball, Build a Steam Study.

  The rotation unit 120 may be rotated automatically by using the battery 121 and the motor 122 or may be manually operated by making a knob connected to the rotation axis hole 124 or both of the two methods may be used And a plurality of steam trains.

  The table of the table portion 130 may be replaced with a fiberboard or replaced with a fiber roll 213 to be used as a billiard table and beads of the stored contents 240 or a small diameter billiard ball The ball is used as a billiard ball, and a multipurpose steam learning board is constructed that can be used for billiards by using a nail or a ballpoint pen as a cue stand.

  In addition, a recorder head is installed in the top frame to add a function that enables recording or playback when a recording tape passes by.

  In addition, an electric control device is installed on the top frame to present a problem and automatically control the roll stop. If the correct answer is input, the electricity flows again to the next problem. If the user inputs an incorrect answer, This is an additional feature that makes it possible to solve problem-solving program learning.

  In addition, the score counter device may be attached to one side of the present invention so that a score can be automatically displayed in the case of problem solving.

In addition, a section search function of a sound recorder is added so that a portion desired to be learned can be quickly searched for and used.

   When the present invention is commercialized, the object of the present invention is achieved and steam learning such as Korean language, mathematics, science, and music art can be easily performed. Various kinds of learning materials are classified by grades and stored in a storage box. You will be able to reduce the effort to carry or move.

  You will also be able to enjoy playing games such as pocket balls, billiard balls, baduks, and organs using your breaks.

  In addition, it will be possible to install a cloaking board and turn it into a book reading system during the test time or reading time.

  It can also be used as a portable device with a proper size, and can be installed and used in a general office or home.

   In addition, if you are using a tablet PC for smart training, you can place your fish on the table, take lessons, and store it, so you can prepare for future use of the tablet.

In addition, the recorder head can be installed in the top frame, and if the tape passes, recording and playback can be done, which will be helpful for language learning.

  In addition, the program learning function of the present invention will allow self-directed learning of problem-solving program learning.

  In addition, by attaching a point counter device to one side of the present invention, it is possible to confirm the score of oneself in the case of solving a problem and to know a definite answer, so that motivation of learning is stronger and learning effect becomes more clear.

In addition, the section search function of the recorder is added, and it will be able to search for the part that needs to learn quickly, and it will be easy to use.

Figure 1. Frame perspective view
Fig. 2 Cross-sectional view of the horizontal position 1
Figure 3 Cross-sectional view of the horizontal position 2
Figure 4 Cross-sectional view of lateral position 3
5 Fig. 5 Cross section of the third compartment
6 shows an entire perspective view (representative view)
Figure 7. Table view
8,
9,

  Hereinafter, the present invention will be described in detail.

The following description is an example only and various applications are possible. Even if such an application is applied to the principles of the present invention, it should be understood that the present invention belongs to the present invention.

  The hard part 100 is divided into a hard part 100 and a soft part 200 and the hard part 100 includes a frame part 110, a rotation part 120, a table part 130, a wedge part 140, a storage unit 510, and the like.

The frame portion 110 is configured to include the upper frame 111, the point and compartment 112, the side frame 113, the opening and closing device 114, the fixing device 114-1, and the support frame 115 .

The side frame 113 connected to the support frame 115 by the opening and closing device 114 and the upper frame 111 are vertically coupled to each other so as to be opened and closed and a fixing part 114-1 is provided as necessary.

  On the upper surface of the upper frame 111, there is a point at which a point can be guessed by the eyes during play or learning, and a storage unit 112 having a cylindrical groove can be installed at the point.

  In the cylindrical receiving part 112, sand or flour for studying the shapes of sand or magnetic fields having different particle sizes for each color is stored for sand art and other necessary data. It is usually cylindrical.

  It would be a good example to draw a ruler on a frame to make it easier to study math or to experience in the snow.

  The side frame 113 is vertically connected to the upper frame and is installed somewhat inward of the lower frame,

The reason why the side frame is slightly inward from the edge of the supporting frame 115 is that the table 133 is vertically erected so as to be able to be used as a reading room desk when a test is to be performed or a space for the user is needed ..

  The opening and closing device 114 is an opening and closing device that can open and close the upper side of the desk or the frame while performing a connecting function of connecting the side frame and the receiving frame. Open the switchgear and allow the contents to be removed.

  Further, the locking device 114-1 can be locked to lock the side plate when locking. So that the side frame can be secured to the support frame.

It is advisable to make the base frame 115 as large as the desk when it is placed on the desk, but it is also recommended to make the base frame larger than the desk surface as the desk is wider. At the four corners of the table, there shall be provided a cover plate 115-1 for inserting the plates so that both sides and front sides of the reading room can be covered with a covering plate

The rotating unit 120 is configured to include a battery 121, a motor 122, a stand 123, a rotating shaft hole 124, a rotating table 125, a roll inlet 126, and a roll book 127.

  In addition, the revolving part is equipped with a scroll, a learning material made of a scroll, a staple, various sheets of paper, and a cloth, and is wound and pulled by a motor to find a necessary part and place it on a table surface for learning or play.

 If you want to do it manually, you can rotate the knob by turning it. Manual or automatic rotation is a common technique that can be easily created by a person skilled in the art and is not described in detail.

The table portion 130 is configured to include a support block 131, a protruding block 132, a table 133, and a table center hole 134.

  The support block 131 serves as a support for placing the table, and it can be attached to the support plate and used for various purposes such as height adjustment or other purposes.

  The table 133 actually serves as a cover for a desk and serves as a learning board, which can be made of various materials in various thicknesses, colors, and shapes according to the purpose of learning, and stored in a storage box. If you do not have a storage box, you can use a conventional desk drawer as a good example. The table 133 is supported by the protruding block and the supporting block, and is installed and fixed so that the learning table or the scroll can be placed on the table or the other plate can be used.

  Depending on the height of the support block, it may be a table of the same height as the frame, or it may be installed at a lower height than the frame. If you install it at the same height as the frame, you can use the whole surface of the table including the frame like the existing desk as the surface of the desk. If you use it with a low height, you can use it for the purpose of preventing things from coming out of the frame, It is used to collect things on the desk easily.

  Also, if there is a gap between the frame and the table, there will be an advantage that the interval can be used or stored like a tablet PC. Although we do not yet use the tablet PC for the students in the school field, we will use the PC as soon as the private tablet PC is supplied and the PC is used as soon as smart education is done. This table can be used as a tool to be able.

The support block protrusion 132 protrudes from the upper surface of the support block to allow the table 133 to move left and right.

The table center hole 134 is a small hole formed in the center of the table so that the rotating shaft of the motor or the rotating shaft connected to the rotating shaft can rotate on the table. Use a hole in some of the replaceable plates.

 The wedge part 140 is composed of an insertion protrusion 141, a wedge surface 142 and a wedge back surface 143 and has at least two or more lengths. The wedge part 140 is sandwiched between the gap between the frame and the table, And to fix the scroll screen of.

Also, it is a space between the wedge and the wedge, and it serves as a hole into which a glass ball or a separately made small billiard ball, a baduk, and a button enter.

 On one side of the wedge (140), an eraser of fiber or rubber is provided to be used as an eraser to erase the text on the surface of the roll.

The storage section 150 is configured to include a first storage section 151, a second storage section and illumination section 152, and a third storage section 153 drawer 154.

The first storage portion 151 may be provided on both the left and right sides and may be formed as a separate drawer. The second storage unit and illumination unit 152 may store various learning materials in a space provided under the table, or may be installed with electricity to illuminate the table. When the table is shined like this, the bottom of the table shines brightly when the sand art is performed, and it becomes the sand art which becomes more real feeling.

It is also used as a space for serial connection or parallel connection of electric wires or wires for science learning.

It is also used as a space for installing the motor and raising the swivel base through the hole in the center of the table.

 When you create a swivel, you can draw a planar shape such as a rectangle, a semicircle, or a triangle in the insertion slot of the swivel, and you can draw the swivel, and you can use it like a spindle in a clay work time.

In addition, if colored paper of various colors is attached, it becomes possible to study color such as mixed color of color, chromatic color.

The third housing part is separately installed at the lower end of the supporting frame 15 as required.

If you have multiple layers, you can adjust the height of the desk to adjust the height to fit the students' body. Fortunately, the student desk is height adjustable.

 The soft part 200 includes a rolled part 210, a note part 220, a soft table part 230 and a stored contents part 240, which can be used by replacing contents.

The roll 210 is composed of the vinyl part 212, the fiber part 213, the various forming part 214, the recording part 215 and the like of the asteroid part 211 according to the material and the printing contents, use.

When playing billiards, you can turn into a billiard table by putting a roll of fiber or by inserting a single sheet of fiber. Of course, if you want to play a pocketball at this time, you can adjust the height of the table by replacing the base block, remove only 6 pocket positions, and insert a wedge to make a pocketball.

  Also, if you use vinyl or asteroid scrolls, you can print or write on top of it without printing it. In the case of the first grade of elementary school, it is possible to learn the writing with a large grid, and gradually reduce the size of the space, so that the user can write his or her own writing quickly and write the correct writing.

The notebook 220 includes a notebook 221, a notebook 222, a notebook 223, and a notebook 224.

Notebooks can be made directly in rolls, sheets, or general notebooks.

It is usually used on a table.

The soft table unit 230 is a table used by replacing the original table with hardware. It can be used while replacing the transparent plate 231, the acrylic plate 232, the rubber plate 233, the wooden plate 234, the fibrous plate 235, the clay plate 236, the magnet plate 237 and the like.

The stored contents portion 240 is composed of various learning preparations literally required for the purpose of learning. It is usually a different grade for each grade depending on the grade level.

Various items such as glass beads 241, buttons 243, writing instruments 244, magnets 245 and electrical devices 246 are stored in a compartment, and when a storage box is small, a separate third compartment is installed So that it can be stored.

How to use it is as follows.

1. Science Learning

Science learning is a prepared science preparation, and it is mainly installed in the second storage unit 152 so that it can be used at all times and can study science.

For example, electrical connection, direct connection, and battery making. Of course, by analyzing the science textbooks by grade, it is possible to use the science experiment equipment according to the grade and to change it according to the semester or unit.

2. Learning mathematics

In order to study math, you will need graph paper, ruler, angle paper, compass, pen tablet, and 19 pen tablet. You can draw this style on the board or use it to find what you have printed on the scroll.

In particular, I use a checkered pattern of learning so that I can find the answer as if I memorized it as a mountain without memorizing the 19th stage.

In addition, the rotating body, line-symmetric shape, point-symmetrical shape, etc., can be made to understand the rotating body by directly inserting various shapes such as triangle, rectangular trapezoidal diamond, In addition, the line symmetric point symmetry will be able to experience the direct experience by grasping the figure while rotating the figure on the rotating table.

Of course, by analyzing textbooks by grade level, preparing appropriate materials, and using this study board properly, it will be useful for studying mathematics versatily.

3. Art learning

 The water in the cylinder of the point and storage unit 112 of the frame unit 110 can be used while sucking the art brushes by color so as to prevent color mixing. And will be well organized.

The clay takes out the clay from the place where the clay is stored, and performs clay work on the clay board which can do the clay work. In this case, use the plate as low as possible so that the clay does not run sideways or fall off. In this case, the frame will provide a good workbench.

Further, a motor and a rotating table can be fitted to the second storage and illumination unit 52 under the table, and the rotating table can be extended through the clay plate hole 224 and used as a spindle.

It can be very helpful when making various bowl shapes and pottery to make while rotating.

You can also make sand art using the size of sand prepared by the bottle. In this case, if the light bulb enters the second compartment and the lighting unit, it will become a more wonderful sand art.

 The burnt sand is stored in the first compartment, sieved and sorted by size. Because the size of the sand varies with color, it will be classified by color and size. Sand art, which is decorated with various colors and various sizes of sand, will greatly contribute to studying art.

It is a matter of course that other grade-level art learning should prepare the table in advance so that it can be equipped with the art supplies for the grade.

4. Learning music

To learn music, you can learn to take out a selection of rolls. Of course, various musical instruments can be prepared in the storage box and can be practiced from time to time. For composing, take out the plates and magnetic plates from the playing board, and write or remove notes or commas with magnets or metal.

5. Learning English

For learning English, you can find out 4 forms from the scroll, or you can take out 4 sheets of sheets. As with music, it is a good example to use words such as letters and plates to complete or find words while completing sentences.

6. Learning Korean

 The Korean language is a document, a grid with each size, a line? Find the part where the back is painted in the scroll part and utilize it.

As in English, take out the plates or magnet plates, learn Hangul, learn the words, and learn the sentences by attaching and subtracting letters and letters of magnet or metal.

In order to write well, we systematically start from the bigger size and gradually reduce the size of the grid, so that the font is caught, and it is moved to the julkan and it is written so that it writes straight on the side. And to guide the formation of correct fonts, so that children are not pointed out that they do not write.

7. How to use it as a playground

1) Billiards: Billiards are available with 4 balls, pocket balls, etc.

The billiard ball can be made small separately or glass beads can be used. The ball of the billiard can be a ballpoint pen, or it can be made with a nail.

Pocketball: A pocketball must have a hole with a hole. Therefore, by adjusting the height of the frame and the plate, the gap is made so that the ball enters the six holes. The part that is not the hole is blocked by the wedge so that the ball does not enter.

At this time, the plate is used as a plate.

Four frames can be used by blocking all four frames with wedges.

2) Go and long term

  Go and organs find the board on which the board or chessboard is drawn, and put it in the box or on the chessboard, respectively. I need to play badminton or long - term play to make my life better for my life guidance at recess.

100:
110 frame portion
111. Top plate frame 112. Point and seat 113. Side frame
114. Opening / Closing Device 114-1 Fixing Device 115. Supporting Frame 116 A shielding film 117, a shielding plate groove
120:
121. Battery 122. Motor 123. Stand 124. Rotating shaft hole
125. Rotating shaft 126 Roller socket 127. Roller notebook
130: table portion
131. Support block 132. Support block protrusion 133. Table 134. Table center hole
140: Wedge portion
141. Insertion protrusion 142. Wedge surface 143. Wedge back surface 144. Eraser
150. Storage
151 First receiving part 152. Second receiving part 153. Third receiving part 153-1 Receiving part frame 153-2 Drawer drawer 154. Drawer support
200: Soft part
210 Roll
211 an asteride portion, 212 a vinyl portion, 213 a fiber portion, 214 a aquaculture portion, 215 a record portion
220 knots
221 Subject notes, 222 Application notes, 223 Sheet notes, 224 General notes

230 soft table part
231 transparent plate, 232 acrylic plate, 233 rubber plate, 234 wood plate, 235 fiber board
236 clay board, 237 magnetic plate

240 Contents of contents
241 glass beads, 242 malachite, 243 buttons, 244 writing instruments, 245 magnets
246 Electrical appliances

Claims (11)

A support frame 115 of a flat plate type capable of vertically connecting the side frame 113 with the table 133 and the table support block 131 and at least one side frame 113 vertically connected to the support frame 115 And a frame part 110 which is connected to the upper frame 11 vertically connected to the side frame 113
A rotation stand 123 having a rotation shaft hole 124 for rotating the rotation shaft 125 on one side of the upper surface and connected to one side of the support frame 115 so as to be able to sandwich the scroll, A rotation unit 120 configured to include a rotation shaft 125 having a roll insertion port 126 that is connected to the rotation shaft 124 and can insert a part of the roll while being rotated,
A table portion 130 including at least one support block 131 formed with a protrusion 132 for fixing the table 133 and at least one flat plate 133 connected to a groove of the support block protrusion 132, )Wow
A wedge portion 140 composed of a plurality of wedges used in a gap between the upper plate frame 111 and the table 133,
A first receiving part 151 formed between the supporting frame 115 and the upper frame 111 of the side frame 113 and a table supporting block 131, a supporting frame 115, (100) configured to include a storage portion (150) configured to include a second storage portion (152) formed between the first storage portion (133) and the second storage portion
The rolled material 211 in the form of a roll is made of materials such as the asbestos 211, vinyl 212, fiber 213, form printing 214,
A notebook 220 made up of a subject-specific notebook 221, an application-specific notebook 222, a general sheet 223, a general notebook 224,
A soft table portion 230 (see FIG. 2) that can be used while replacing the transparent plate 231, the opaque plate 232, the rubber plate 233, the wooden plate 234, the fiber plate 235, the clay plate 236, )Wow
And a spring part 200 constituted by a storage contents part 240 selected according to the purpose of each grade such as a glass bead 241, a snow ball, a button, a writing instrument, a magnet, and an electric appliance, , A game board, an organ, and the like. In claim 1
Characterized in that the upper plate frame (111) is provided with at least one point-cum-receiving portion (112) in such a manner that a groove is formed on one surface of the upper plate In claim 1
The supporting frame 115 and the side frame 113 are connected to each other by an opening / closing device 114 such as a lapel, and a fixing device 114-1 is separately provided so as not to be opened or closed according to the purpose. In claim 1
A cover plate 116 is provided on the outer side of the support frame 115 so that the cover plate can be inclined and an appropriate table can be selected and used as a cover plate 117 to turn into a book reading desk Multipurpose Steam Learning In claim 1
And the eraser can be used as an eraser by attaching an eraser on one side of the wedge part (140)
In claim 1
The storage unit (150) is provided with one or more separate third storage units at the lower end of the receiving frame (115). In claim 1
Wherein the table part (130) is adapted to be used while replacing the support blocks (131) of various heights. In claim 8
The gap between the table part (130) and the upper plate frame (111) can be used or stored by interposing a similar article such as a tablet PC, and used as a gap for entering a billiard ball, Learning In claim 1
The rotation unit 120 may automatically rotate by using the battery 121 and the motor 122 or may be manually operated by making a knob to be connected to the rotation shaft hole 124, A multi-purpose steaming learning board In claim 1
The table of the table portion 130 may be replaced with a fiber board or replaced with a fiber roll 213 to serve as a billiard table and beads of the stored contents portion 240 or a small diameter billiard ball or a similar ball Is used as a billiard ball and is used as a cue by using a nail or a ballpoint pen. In claim 1
The versatile learning board can be used as a portable learning board, a blackboard learning board, an outdoor learning board,

Images