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One of the challenges of understanding maps is making the jump from the image on the page to the reality of the world. This is especially challenging when it comes to scale, both distance and elevation. When we work on contour mapping, there are always several students in the class who have a hard time picturing how those lines on the map turn into hills, mountains, and valleys.
I decided to make the idea of contour mapping more concrete for them. Materials:
I chose to make up a few batches of play-dough, as I wanted my kids to make individual creations, and that gets expensive on the school’s plasticine stores. Starting with the blue, students roll out the clay to a uniform thickness. I had my students aim for about 1/2 to 3/4 of a cm. The blue is cut out to fill as much of the poster-board square as possible. These are the coastal waters. Another colour is rolled out and the lowest contour of the island is cut out and placed on the blue. Continue rolling out and cutting out the colours to create peaks on the island. After the layers are in place, use a pencil or chopstick to gently angle each layer to that it slopes smoothly from level to level. Students then place the graph paper beside their island and, looking down at the island from the top, draw the contour lines. They then colour their map according to the play-dough colours, adding in compass rose, legend, and title. My students loved the hands-on aspect of this quick little project, and it did a very good job of illustrating the link between elevation and contour lines. Play-Dough Recipe
Mix together in a pot and cook over medium-high heat, stirring constantly, until it coalesces into a single solid glob. (About 2 to 4 minutes.) Turn out onto counter and knead 3-4 times to form into ball. Store in air-tight container.
8 Comments
1/28/2022 07:07:07 am
Services include General Contracting, Municipal Concrete Construction, Concrete Curb and Gutter, Concrete sidewalks driveways and plazas. Thank you for making this such an awesome post! 5/13/2022 09:44:24 am
First of all, Concrete Contours would like to sincerely thank everyone that has had us out to their home this year for bids and scheduling work. 7/13/2022 06:52:35 pm
A variety of contour maps are created by petroleum geologists. Although contouring is not very challenging, it is simple to make minor errors when the map becomes quite large. Your little errors might invalidate the map! A good-looking map requires a lot of experience and perseverance to create. The Township and Range System is used extensively in the United States to locate wells. The Public Land Survey, which was started while the nation was still young, includes this method. Assuming we are creating a map in one of the western states that employs the Township and Range system, this is how to create a country map. A "sector" of land here has one mile on each side (one mile square). 8/1/2022 02:15:51 am
We would like to thank everyone who has invited us to their home for bids and scheduling work this year. This is extremely beneficial! 8/4/2022 08:23:20 pm
Thanks for the information provided in this blog. This is the third time I visited in this blog. keep posting such stuff. Thanks a lot for the information. Concrete contour mapping is a process used to create a three-dimensional map of a concrete surface. This process is often used to create a mold for a concrete structure, or to create a template for a concrete pour. Concrete contour mapping can also be used to create a three-dimensional model of a concrete surface for analysis or design purposes. 12/13/2022 12:03:41 pm
The blue is cut out to fill as much of the poster-board square as possible. These are the coastal waters. Another colour is rolled out and the lowest contour of the island is cut out and placed on the blue. I truly appreciate your great post! Leave a Reply. |
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