What is handgum. Handgum (Hendgam), Chewing gum for hands, Smart plasticine

Nowadays, even preschool children know what hand chewing gum is, and, perhaps, it is difficult to find a schoolchild, and even more so a teenager, who would not play this funny toy. However, many parents are wary of this new product and are reluctant to buy it for their kids, fearing that its composition may be unsafe for the child, cause allergies, contact dermatitis, etc.

Let's figure out what is live or smart plasticine, handgum, chewing gum for hands, or as it is also called "stupid putty" (Silly Putty), why it was invented and whether it is harmless to health.

Gum for hands is a very unusual polymer: it is solid and liquid at the same time, looks like plasticine or chewing gum big size. According to its composition, it can be flavored, metallic (contains metal powder, attracts small magnets), heat-sensitive (changes color depending on the temperature of the hands and surrounding objects), luminous (glows in the dark).

As part of the factory handgama includes, first of all, an elastic silicone polymer (about 65%), silica minerals ground into dust (about 15%), as well as additives that stabilize the composition, color it, flavor it and give it special properties.

The chewing gum has a silicone base and does not contain anything that contains water, so it never dries out and does not crumble.

For children it funny toy, and for adults - a great opportunity to stretch their hands, especially for those who work a lot at the computer or write. Holding it in your hands and feeling a pleasant, plastic texture, you will involuntarily begin to sculpt various funny figures, thereby developing creative thinking and strengthening your finger muscles.

It has been noticed that handgam helps to distract an upset and crying child, relieves irritability and relaxes the nervous system.

Summing up, we can say with confidence that chewing gum for hands is very useful for the development of fine motor skills in children, which is undoubtedly important, because speech, handwriting, and development depend on it. nervous system. In addition, it develops sensitivity, imagination, trains and strengthens the muscles of the hand, promotes relaxation of the nervous system, relieves stress.

The only drawback of this toy is the impossibility of cleaning it, due to the sticky surface, on which dust and other particles from environment. Therefore, after some time, it is recommended to replace it with a new one.

No need to leave chewing gum on fleecy surfaces, wash and throw in the dirt.

Factory made handgam completely harmless and non-toxic when used as intended - which is why it is an excellent option for game development preschool and older children.

But giving it to babies up to 3-4 years old, who may try to swallow a piece, or close their airways while their parents do not see, is still undesirable.

Be healthy!

Hygienist of the Department of Public Health E.I. Azarova

irina semenova
Handgam presentation

Master class for educators « handgum»

Good afternoon, dear colleagues! I want to present to your attention my master class « handgum» .

Target: Improving the professional skills of teachers through experimentally experimented activities. (production "gum for hands"

Tasks: Introduce teachers to making handgam and games with it, to create conditions for professional communication and stimulation of the growth of the creative potential of teachers. (Learn how to make smart clay at home)

Handgum - what is it?

This is a big chewing gum, only for hands. It is like plasticine, but it does not stick to hands, does not leave marks on the surface and does not hold its shape, it can be crushed, cut and stretched, children from the age of three can play with it. Crafts from it do not need to be stored, as they spread.

The creator of this toy is a Scottish scientist and engineer, inventor, James Wright.

In 1943, Wright made an amazing discovery. He mixed boric acid with silicone oil in a test tube. Instead of forming a hard rubbery material, the joint remained slightly tacky to the touch. Disappointed with the results, he threw the wad of material from the tube onto the floor. To his surprise, the lump bounced back on Wright. The new connection could also stretch very much. In a long time interval, the substance manifests itself as liquid: spreads after a while, slowly flows through the holes in large drops. For short periods of time, matter behaves like an elastic solid (the lump thrown by Wright bounced off like a ball). Substances exhibiting such properties are called non-Newtonian fluids. However, this was not the desired rubber substitute, Wright and other scientists continued their search.

Seven years after this event, a toy salesman named Peter Hodgson packaged Wright's invention in a small plastic egg and presented his new product at the New York Toy Festival. Branded as Silly Putty ( "silly putty") material proved to be very popular. Millions of eggs containing Wright's invention have been sold to children of all ages. In Europe, the toy was called Handgum ( "hand chewing gum"). The invention of this substance became the greatest event in the career of James Wright.

Handgum is the most amazing polymer! It is solid and liquid at the same time. In long periods of time, Handgum behaves like a liquid, it slowly drains, drips and tries to spread into a puddle. For example, if you make a ball and put it on the table, then in a couple of minutes this ball will become a puddle. With a faster impact, Handgum will behave like a solid body - the same ball thrown on the floor will bounce. You can also tear it apart with a sharp movement or even hammer a nail with it!

All handgams have these basic properties. In addition to them, there are also models that change their color depending on the temperature. And more models that glow in the dark. And even 1 model with magnetic properties!

Scientists, studying the activity of the brain and the psyche, noted the great stimulating value of the functions of the hand, since in the human brain the centers responsible for speech and movement of the fingers are located very close. And if we are engaged in the development of fine motor skills, then by doing so we activate the neighboring areas of the brain responsible for speech.

handgum has been issued independent medical opinions by doctors in the field of traumatology and pediatric neurology (pediatrics).

For the rehabilitation of patients after surgical and conservative treatment and injuries of the upper limb;

To restore the mobility of the hand and fingers, for patients after suture and tendon plasty in the rehabilitation period;

For patients with angioedema of the hand;

In the treatment of patients with contractures in the interphalangeal and metacarpophalangeal joints.

When working with handgam in pediatrics, recommended:

Children suffering from diseases of the nervous system (mild forms of cerebral palsy, peripheral lesions of the upper extremities, pyramidal disorders);

In children, there is an improvement in the development of motor skills of the fingers, strengthening the muscles of the hand, improving peripheral blood flow and the emotional sphere.

Even by doctors, this toy is recommended for children over 3 years old, as well as for children with some mental disabilities, such as delays mental development, as a toy for the development of fine motor skills and fingers, training coordination of movements, to create a positive emotional mood, improve concentration, to correct behavior in hyperactive children, to strengthen the interhemispheric connections of the brain and develop creative thinking.

Exercises involving hands and fingers harmonize the body and mind, have a positive effect on brain activity and relieve fatigue. By massaging certain points, you can influence internal organs associated with these points. Handgams of pastel colors harmonize, give bliss and peace, and bright colors energize positive emotions. With the help of Handgum, we choose a positive mood for ourselves.

When you don’t know what to do with your hands and mouth, smoke or chew gum, investing in these processes « social function» . Get rid of bad habits now you can by replacing them with Handgum!

Like this! Handgum, not only a fun, but also a useful toy in your hands.

For this we need: PVA glue, gouache, mixing bowl, stirring stick.

Let's get to work.

Filling the glass (or any container you like) PVA glue (100g or 200g, after shaking the jar of glue.

* The more glue, the bigger your homemade slime.

Add a little dye to the glue container (the main thing here is not to overdo it, otherwise your hands will get dirty). Mix thoroughly until a homogeneous mass of the desired color is achieved.

Slowly add sodium tetraborate solution little by little. Thoroughly mixing the whole mass. The result is a jelly-like, thick mass.

Add color as desired. As soon as the mass begins to thicken, you need to knead the slime with your hands to form a thick, viscous mass.

Games with hengam

Nutcracker". The participants in the game take turns squeezing hand-gum so that he clapped as loudly as possible. The fact is that if you squeeze it sharply, then cotton will be heard (the accumulated air will come out of the toy).

This exercise trains the muscles of the entire hand and improves its grasping ability. Gradually, the task can be complicated, and compressed handgam with one hand or only fingers.

"Guess". One of the participants in the game sculpts something from handgama/ and then the rest of the participants guess what it is. The guesser gets a point. The sequence and duration of the game are negotiated by the participants themselves.

This game is based on the property handgama quickly lose their shape c. in a static state, simply speaking, to spread; so that the time for guessing the figure is limited, and this, in turn, stimulates brain activity.

"Pull it". Participants take hold handgam and pull it. The player who draws the most part wins. handgameg Since this toy is made of a very plastic material, you can pull for a very, very long time. Over time, the task can also complicate: to pull handgam, holding only the fingertips, for example.

This exercise trains the grasping ability of the hand very well and develops fine motor skills.

Massage By massaging certain points, you can influence the internal organs that are associated with these points.

Massaging the thumb increases brain activity. The index finger is associated with the stomach; by massaging the middle finger, you have an effect on the intestines. Massage of the ring finger has a positive effect on the functioning of the liver and kidneys. By massaging the little finger, you help the heart work.

Via handgama It is easy to massage hands and fingers, which will bring you joy and improve your well-being.

Smart plasticine, or handgum (HandGum), that is, “gum for hands”, today is reputed to be one of the most popular toys for both children and adults. And yet, this is not, not a fat “lizun” and not that bag of flour that, after several transformations, crumbled over carpets ... Handgum is unique: it is both liquid and solid, stretches and tears, bounces like a ball or breaks into pieces. Certain types of smart plasticine glow in the dark, magnetize or change color depending on temperature. Everyone dreams of such a curiosity - from schoolchildren to office workers!

Safe fun

Hand gum was created by accident in 1943 when scientist James Wright was experimenting to produce synthetic substitutes natural rubber. side effect These experiments became an organosilicon (silicone) polymer, later called handgum.

This composition is non-toxic, does not have a chemical smell (until fruit, berry, coffee, chocolate, cream or nut flavors are added to it to the taste of the buyer). The composition of handgam is also no secret: 65% dimethylsiloxane, 17% silica (crystalline quartz), 9% Thixatrol ST (castor oil derivatives), 4% polydimethylsiloxane, 1% decamethylcyclopentasiloxane, 1% glycerol and 1% titanium dioxide. Smart plasticine complies with the requirements of the European Union and Russian Standards, it received Bureau Veritas Consumer Products Services UK Ltd certificates, as well as Russian hygiene and compliance certificates.

Magic toffee properties

In short periods of time, the smart one behaves like a solid body:
= if you sharply pull it in different directions, it will tear or break like cold metal, with a clear cut;
= if you roll a ball out of it and hit the floor or wall, it will bounce;
= if you hit it with a hammer, it will break into small pieces.

But if we consider a long period of time, hendgam behaves like jelly: plasticine flows through the fingers or falls in large drops from the edge of the table, the figures molded from it spread. Hendgam does not stick to hands and other things, does not leave sticky spots - so after it you do not need to wash your hands or clean up.

What is useful handgam?

The advantages of a silicone toy can be appreciated by both children and adults:

Smart plasticine promotes the development of fine motor skills of the hands, massages the active points of the fingers, palms and strengthens the wrist muscles;

Stimulates the brain areas responsible for speech, writing and handwriting (since in the human brain the centers responsible for speech and finger movement are located next to each other and “turn on” together);

Relieves fatigue, aggression and irritation, wonderful;

Improves mood, harmonizes the body and mind;

Serves as an element of color therapy: depending on the color, handgam can calm (pastel colors) or invigorate (bright juicy colors);

Kneading, stretching and twisting the toy helps to turn on creative thinking and generate new ideas.

How to handle smart plasticine?

Unpacked hand chewing gum can be stored for about five years without losing its properties. If you actively use the toy, it will last less - of course, it will not have time to dry out or crumble (it takes centuries for silicone to do this), but it collects a lot of dust and lint - so many owners prefer a new one to a “shabby” handgam.

The main thing is not to put smart plasticine in the refrigerator and not leave it in water for a long time, otherwise it will lose its interesting properties. The toy is also afraid of soap, chlorine and any other chemicals. You should not leave handgams on a fabric or on a carpet for a long time: it will spread so much that you will have to rub it with alcohol (or even resort to dry cleaning services). And of course, do not risk sticking plasticine to the hair or fur of pets. Any other surfaces where Velcro can seep through should also be avoided: laptop and computer keyboard, Appliances, plinth, etc. You need to store handgams in the iron or plastic packaging that comes with the toy.

Gum for hands cannot be “tasted by mouth” (therefore, small children always need an eye and an eye). If the baby still accidentally swallows a small piece of handgam, it's okay: silicone is not involved in the digestion process and will soon leave the body naturally.

How to make smart plasticine at home?

Let's say right away: homemade chewing gum for hands will have almost the same qualities as the purchased one - stretch, wrinkle and be any color you wish. It will also be environmentally friendly, and also much cheaper than branded handgam. But the resulting mass will not be so elastic, and will last only one to two weeks. Although it is quite possible that the toy will have time to get bored during this time.

So, to make smart plasticine with our own hands, we need:
= borax (sodium tetraborate) from a pharmacy or gardening store
= PVA glue
= food coloring or gouache
= container for mass mixing
= wooden stick, pencil or spoon

We take a pinch of borax and dissolve it in a small amount of water, and then send our dyes there. Now we shake the tube of glue well and add it to the container with borax - the more PVA, the more hand chewing gum will turn out. Stir everything with a stick: if the mass is too liquid and does not form a lump, add more borax (without water). When the mixture is completely mixed into such a “kolobok”, put it on paper napkins - they will absorb all the excess liquid, and you can start cheerfully squeezing the craft.

There is another recipe for making a handgam: we mix in equal proportions stationery silicate glue (it is considered safe for health, like PVA) and pure alcohol. Stir the mass until it becomes viscous - and rinse under running water. cold water. A tool for creativity, self-development and relaxation is ready!

Today we will tell you about amazing invention Scottish scientist James Wright - "gum for hands." A bright mass that simultaneously has the properties of a liquid and a solid body is also called handgum, fangam, "smart" plasticine, and even "Newtonian fluid." With so many unusual names, handgam continues to amaze certified chemists for many years and remains a favorite miracle toy of people of all ages and moods!

But, let's get it right.

Why do you need "gum for hands"?

Children love handgam because it is constantly changing, opening unlimited horizons for imagination. And adults are happy to buy it for children, because the silicone-based colorful mass is absolutely harmless and does not leave marks on hands, clothes and any other objects or surfaces.

"Gum for hands" perfectly trains motor skills, perseverance, develops creative thinking, and also works as a wonderful anti-stress - it helps to get rid of aggression and irritation, creates a positive emotional background. Therefore, it is a wonderful gift for a child, friend, relative and colleague.

What can handgam?

Yes, there are so many things that you can list indefinitely! After all, I also endlessly want to play and experiment with him.

Plastic and pleasant to the touch chewing gum with a soft impact is very pliable. It is easy to wrinkle, stretch, can be cut and torn into pieces. But to the one who treats it rudely, the chewing gum will provide worthy resistance, remaining dense and hard.

If a piece of handgam is left on the surface, it will immediately try to become liquid and spread into a puddle. But as soon as you take a puddle in your hands, you can already mold a ball out of it, which will bounce merrily if you throw it on the floor.

The only thing you don't need to do with a handgam is to wash it. It is better to avoid contamination and hide the gum in a special box after the game.

Have you imagined how exciting it is to hold a bright lump in your hands, which easily takes any shape and can be solid, liquid, plastic and durable at the same time? Then we will surprise you further and tell you that handgams can please not only with special tactile sensations. Some of them hit with additional abilities.

Varieties of handgams

So, in addition to the classic bright handgams, there are “chewing gums” in metallic and electric colors, as well as fangams, two-color, glowing in the dark and changing shades from contact with heat. There are also magnetic handgams with aromas of fruits, flowers and berries, chewing gum-monsters with eyes.

Visual pleasure from amazing toys works no worse than special color therapy, beneficially influencing the senses and contributing to harmonious mental relaxation.

Well, have you already decided what handgum you want? Then come and visit us and choose a wonderful toy. The quality and safety of the product is guaranteed - the entire team of the online boutique site carefully and with pleasure tests handgams on themselves!

This is a toy made of silicone. It has the shape and consistency of plasticine. Its original name is Hendgam (translated from in English). She appeared in 1943 after an unsuccessful attempt to create rubber. As a result of the incorrect ratio of materials, a composition has appeared that can take almost any form. Gradually, the invention was finalized and only ten years ago it entered the retail and made available to the public. Chewing gum is a soft mass of heterogeneous shape. Handgam is designed for children's games, development of motor skills and imagination. But adults can also find entertainment for themselves in this chewing gum.

Main

The use of chewing gum

Develop hand motor skills, especially in childhood; Has not found application in industry. But that hasn't stopped people from using Handgams to good use. Here's what you can do with chewing gum:

• relieve stress, get rid of bad habits (nail biting, smoking, and so on);
• massage the hands, acting on the acupuncture points on the palms, improving well-being;
• pump up the muscles of the hands instead of special simulators;
• play throws, developing dexterity;
• play with pets;
• take fingerprints and key impressions;
• make bubbles and then pop them;
• in a solid state, chewing gum can even hammer a nail.

The main properties of chewing gum

Hand chewing gum has several basic properties that are determined by the condition of the toy. They also help to play with Handgun and play entertaining games with children. The main properties are as follows:

• smells- the toy has a very pleasant smell that persists long time. And a huge range of chewing gum allows you to buy your favorite fruit flavor - watermelon, strawberry, orange and others.
• Changes color- if you hold the gum in your palms for a long time, it will change its color. Put on the table - will return to the original version. Such a chameleon will certainly please the child.
• Glows During the day, the chewing gum absorbs light, and at night it emits a slight glow. It does not last very long, but it allows you to gain positive emotions.

Properties of chewing gum by consistency

The consistency of chewing gum can be as follows:

• solid- Handgum becomes like a stone. If you hit it with a heavy object, it will break into several small pieces.
• Liquid- chewing gum can be given any shape, but it quickly spreads on the table. The liquid consistency opens up a huge scope for imagination, allows you to create the most unimaginable figures.

What can you do with chewing gum?

Thanks to the silicone base, chewing gum can not only turn into various figures, but also perform interesting actions with itself, violating all the laws of physics. What can be done?

• Stretch- chewing gum is able to stretch and not tear. It looks like hot cheese.
• Break- if the chewing gum is sharply pulled in different directions, it will tear or break.
• Make jump- chewing gum must be molded into a ball and thrown on a hard surface. She bounces easily like a ball.
• Make it drain off the table- if Handgam is placed on the edge of the table, then it will easily flow off it, like a big drop.

How to care for chewing gum

Chewing gum does not require special care. It does not tear or break, even if you step on it. But if this happens, then it can be molded again into a homogeneous mass. But still, you should not throw gum anywhere. It easily picks up hairs, fur and debris. And this adversely affects its composition.

Chewing gum can be washed without using chemicals. And it is desirable to do this as little as possible. To protect the Handgum from debris, you need to store it in its original packaging. And then the toy can last for several years.

It is not recommended to give chewing gum to children under 8 years of age. Immediately you need to tell the baby that you can’t take a toy in your mouth. This rule also applies to pets. It is necessary to protect them from the possible swallowing of part of the chewing gum.

What can be said in conclusion?

Chewing gum for hands is an original and very interesting toy that allows children to spend time with benefit, and for adults to relieve stress. Handgum is an extremely useful invention, improved thanks to modern technologies. If you need to please children, give them a nice gift that develops their imagination, then hand chewing gum is best suited. It combines several entertaining and educational toys at once. With Handgun, it is very easy to explain the laws of physics to a child and show good example how a liquid or solid behaves. Children will certainly like such lessons, who in the future will be able to show their knowledge at school, based on personal experience.