1, the difference between HB pencil and 2B:
According to the national standard GB/T 26704, there are 17 kinds of pencil refills, namely: 6B, 5B, 4B, 3B, 2B, b, HB, f, h, 2H, 3H, 4H, 5H, 6H, 7H, 8H and 9H.
Among them, 2B and HB are commonly used by students, which are mainly different in hardness, blackness, lead core diameter and wear.
2B is darker and softer. Writing the same number of words means 2B wears more, which means it is not durable. HB lead is hard, so the nib is stressed and durable. The disadvantage is that the written words are slightly lighter in color.
2. Choose HB or 2B?
Children in Grade One have little strength, but they use great strength when writing. Before mastering writing skills, some children try their best to break the lead carelessly, so try to use HB pencils.
What's more, HB was originally designed mainly for writing, while 2B was designed mainly for drawing, sketching and taking exams. No matter whether it is China and Deli in China or Mitsubishi and Si Pierer abroad, it is the same without exception.
Therefore, in order to keep lead, try to use HB pencils for children; When you have the correct pen holding posture and master the writing skills, change to 2B pencil.
If the school requires the use of 2B pencils, then use 2B pencils, which is nothing more than preparing more pens. For example, it is enough for HB to prepare four pencils a day, and it is necessary to prepare six for 2B, so it is more troublesome to sharpen pencils at night.
3. When choosing a pencil, consider the pen holder:
The shapes of penholders are triangle, circle, hexagon, square and hole pens with grooves. At first, when you use a pencil, try to use a hole pen, then change it to a triangle pen when you get used to it, and then change it to a traditional hexagonal pencil when you learn calligraphy, and slowly transition.
Both the triangle pen and the hole pen have the function of correcting posture, but the difference is that the hole pen can keep the distance from the finger to the tip of the pen one inch (three elements of writing posture: holding one inch and punching one punch), while the triangle pen does not have this function.
A box of hole pens has been used up, and it is estimated that the habit of holding pens will soon be developed. At this time, replace it with a triangular pencil and remove the "one inch" to let the children grasp it themselves.
Although the hole pen can better correct posture, but because of the hole, the pen holder is actually thinner, so it is not convenient to write more. The advantage of triangle is that the pen holder is thick, the contact area between pencil and finger is large, and it is more comfortable to hold and write.
Whether it is a hole pen or a triangle pen, it is specially used for children. Adults generally use hexagonal pencils, and they should also use hexagonal and round pencils to learn calligraphy.
Because you write a little more, the tip of the pen will thicken. In order to make the handwriting strokes even, you need to keep turning the pen. Triangular pen and hole pen are 120 when rotating, and the angle is large, and the gap between strokes is large, which is not conducive to the aesthetic feeling of words. Hexagon rotation is only 60, and the thickness of strokes will not be much different.
When I first started writing, I used HB hole pen. After I became familiar with my pen holding posture, I changed it to HB triangular pencil. After I signed up for a calligraphy class or started next semester, I changed it to HB hexagonal pencil. If the school/teacher requires 2B, choose 2B and try to keep the pencil shape unchanged.