Display images in larger sizes

"why is it that my images are big but when i upload them they become so small?"

When you use Blogger's photo upload icon to display images, you can chose 3 different default sizes - large, medium and small. If your image is very large, Blogger will shrink it to a smaller size for display. However, if you are in the COMPOSE mode, you can use your mouse to grab the edge or the side and drag-drop it to create a displayed image that can be larger or smaller than the default.

Alternatively, you can use the HTML image tag to display it in the original size or use that tag with a width attribute to display it in whatever size you choose.