Do you work with students who have difficulty applying pencil pressure when writing?Students can start out writing lightly and then continue to get lighter and lighter. This 31 page PDF digital document is available electronically immediately following payment for just .99. Many teachers are surprised to learn that there are at least five different pencil grasps which research has shown to be fully functional.Pencils are primarily composed of graphite, and when you draw the pencil across the paper, some graphite particles get stuck on the paper fibers, leaving behind the marks and letters you just wrote.
Here are 10 ideas on how to increase pressure when writing: digital download was created by Thia Triggs, OTR. Learn about the four major reasons that a child may struggle with acquiring a mature pencil grasp and what you can do to address the causes.
She reports that as a school-based Occupational Therapist, the most frequent issue teachers ask her about is pencil grasp. What else can I do to change a child’s pencil grip?
Choosing ink with a well designed mix of drying agents and surfactants keeps ink in place on the paper for years to come, unless it gets wet, of course!
Cheaply printed newspaper use high absorbency paper and mineral oil-based inks, which are less expensive.
Papers do come in a range of different “porosity”, and you’ll notice that some glossy papers for photographic printing, have no porosity at all, completely enclosing the fibers and preventing ink from soaking in and drying in the same way.
Variations in the porosity affect the amount of time ink takes to dry.Highly absorbent paper actually takes longer to dry, because as more is absorbed, it becomes harder for oxygen to reach it.Therefore, slightly glossy paper (but still porous) will dry faster because there is more ink on the surface that is being exposed to oxygen and drying.Those types of oils dry much better when the paper is heated, but newspapers are printed extremely quickly – thousands of pages per minute – so there is no time to heat the paper and ensure proper drying before the papers are shipped out to news stands all over the country.Some of the ink on a freshly printed newspaper will remain on the inner fibers of the paper, but in those great big stacks of newspapers, there isn’t a whole lot of oxygen available to dry the remainder of the ink.The type of paper used is not the only reason why ink can be absorbed and dried on a piece of paper; the ink itself also plays a part.There are many different types of ink today, but the primarily used type in printing books and newspapers is carbon black pigment, in addition to various surfactants, resins, waxes, lubricants, and drying agents.These sticky molecules then pluck out those graphite particles that are on the very top layers of the paper fibers. When you try to erase marks from a pen after they have dried, the rubber is unable to separate the intermolecular forces, and you would have to physically scratch down to the level of the dried dyes and eliminate the text that way.For many types of paper, however, which have very high porosity, the ink may bleed nearly all the way through, making it impossible to erase with a traditional erase without destroying the paper itself!For those of you who don’t know, capillary action is the unusual ability of liquids to move into narrow spaces against or without the assistance of gravity.This phenomenon is actually seen all over, from the sand getting wet at the beach to the way paint moves up the small tubes and hairs of a paintbrush.