To understand the formation of the rock we call slate, we must first travel back in time a few billion years. As volcanic lava flowed over the ground, superheated clay deposits mixed with ash. This mixture eventually dried in layers, much like shale but noticeably harder.
Slate can be split into slabs, and those slabs can be split once again into thin sheets. Slate has been used for a number of applications over the years. One common use is as a natural form of roof shingle. Individual shingles are manually carved from a master slab and sold to roofers and contractors. The tiles are arranged in offsetting rows over a few layers of tar paper and sealants. Slate shingles are desirable for their natural durability and heat absorption, but individual shingles can become fragile.
Compared to other modern shingle materials, they can also be relatively expensive. Students used slates to complete class work and practice their lessons. Students also took slates home to practice what they learned in school.
Teachers at the Scandinavian Raspberry School in Wisconsin used slates in their teaching. At first students used slate pencils to write on their slates. This was like using a light rock to write on a dark rock. Later, slate pencils were replaced with soft chalk. The soft chalk was popular because it made writing smoother. It was easy to erase homework written on a slate.
Because they only had one slate to write on, students erased their work many times during a day. This forced students to memorize their lessons every day. Penmanship or handwriting was very important in the past. Most students learned how to write correctly by copying their teacher. The teacher would write letters, words, or sentences on the chalk board at the front of the room.
The students would copy the spelling, shape, and spacing of what the teacher wrote onto their own slate. Students with good handwriting were asked to write on the large chalkboard at the front of the room.
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This means that every time you visit this website you will need to enable or disable cookies again. Login Register Contact About. Accent Panels Simply mounting a piece of slate to your wall might not be the DIY hack you were hoping for- but finding a unique location or application transforms the obvious to the ingenious. Share this post. Recently Posted Customer Projects.
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