You can also use the flat side of your saw to draw a straight line.

Most miter boxes will have slits that are at different angles in case you need to cut your wood on an angle.

Feather boards  have a series of wooden “fingers” that help prevent kickback from your table saw.

Use a level to make sure that the plank of wood is straight.

If you are using a circular saw use a fine-tooth blade.

The plywood will now be the same width as your circular saw’s shoe.