Unit 10 - Working with Scale Drawings Day 1 Lesson Practice Teachers Resources

Labs and Research Other Labs: Dino, Scale Model/Drawing of School, Drawing With a Grid, Measuring on a Map, Drawing and Reading Prints-Mechanical / Architectural, Prints, Pictures, Photo Enlargements, Pattern EnlargementsMeasuring on a Map Quizzes Careers using Scale Drawings or scaling in general Defined by Wikipedia

Video Examples NASA Ferrari Earth Drawings Scale Tank Scale puzzle

Evaluation of Understanding Total square footage of home on plan. Square footage of sleeping rooms. Footage of room 1 including closet. Footage of Master Bedroom including Master Bath and Walk in Closet. Square footage of non sleeping areas. Square footage of kitchen including pantry.

Measuring the Scale Drawing

Grid Drawing Grid Drawing - Copying Pictures Using a Grid Squares From Helen South,Your Guide to Drawing / Sketching.Choosing a Picture and Grid SizeHelen SouthDrawing / Sketching When selecting a picture to copy, make sure it is large and clear. You might wish to photocopy or do a computer printout rather than drawing directly on a photograph. You need an image with clear lines and edges - a blurry image makes it difficult to find a line to follow. Decide on your grid size. If the grid is too large, you'll have to do too much drawing in between each square. If the grid is too small, you'll find it difficult to erase, and it can get very confusing. There is no definite rule, as the size of your picture and the subject can be so varied - but something from one inch to half an inch will be about right. You don't have to divide your photo up mathematically - if the last squares are only half filled, that's fine.

Measure up your grid, drawing the lines with a fine black pen. Dark grayscale photographs may need a white gel pen to show up. You can also use a computer to add a grid to your picture, as in this example - using the 'grids and rulers' in your graphics program as a guide, and drawing horizontal and vertical lines in a contrasting color. Copy the grid onto your drawing paper, using a sharp, B pencil (medium hardness) and a light touch, so that you can erase it easily. Beginners should draw it the same size as the grid on the original picture. Once you're comfortable with the process, you can use larger grids to scale up drawings. The best way to learn this process is to try it - why not print this picture out and have a go?

A Few Squares at a Time When copying the picture, use spare sheets of paper to cover some of the image, so you can focus on a few squares at a time. This is especially useful for large pictures which can become confusing. Place your drawing and the original picture close together, so you can look directly from one to the other.

Following Shapes and Using Negative Space Look for clear edges in your picture. With this example, you can clearly see the outline of the jug against the background. Notice where the shape crosses the gridline - this is the reference-point that you can use. Don't try to measure where it is on the grid, but rather judge its position (halfway up? one-third?) and find the same spot on your drawing grid. Follow the shape, looking for where the line next meets the grid. The area shaded gray shows a NEGATIVE SPACE formed between the object and the grid. Observing these shapes can help you follow the shape of the line. Notice how the gray space looks fairly triangular, with a couple of chunks taken out - that makes it easy to copy.NEGATIVE SPACE

The Finished Grid Drawing The completed grid drawing will include all the major lines of the object - outline, important details and clear shadow shapes. If you want to indicate the position of subtle details, such as a highlight, use a light dotted line. Now you can carefully erase your grid, patching up any erased parts of your drawing as you go. Then you can complete it as a line drawing, or add shading. If you need a very clean surface, you might want to trace your completed sketch onto a fresh sheet of paper.

What is the scale of the map?What is the length of Italy in the N/S direction?How far is it from Madrid to Warsaw?Estimate the square miles of Iceland.How far would you travel by water from Edinburgh to Helsinki?Describe the total square area of the map.

COUNTDOWN Challenge A Proportional Fish Story COUNTDOWN Challenge A Proportional Fish Story Architects use proportions to build scale models so projects can be visualized before they’re made. As a class we will build a scale model, one example is this fish lab, work through the worksheet for a visual scale. Great White Shark Orca Whale White Shark Blue Whale