Why am I not show the photoshop brush the bar is a ~ ~ ~ ~ a point

I show the students that one of a curve ~ ~

brush set to tune in is probably the step to set
Take a closer look at the way it shows a difference in terminology, click the brush, shortcuts B, in the right-mouse click on the canvas out of the brush set, there is a small triangle in the upper right corner, click it, choose Stroke is the Thumbnails of the effect you want A.A lot of brush material

is another set of brush

you can brush it unless they view the opening point after point to set it up to you and your students to use the Is it the same brush, brush the various different shapes, and brushes of different sizes, shapes, there are differences, even if the same brush, the same size, step, a different arrangement, different hardness, painting It is also different.Do not pay attention to the shape of the brush, as long as you want to draw the line on the results.
You want to be helpful.Paintbrush tool to choose, according to F5, pen nib shape of the election, will be transferred to the distance between 1% .