Measuring Angles with a Protractor

Let's Make a Flexagon Let's Make a Flexagon Flexagons are flat models made from folded strips of paper that can be flexed to reveal a number of hidden faces. They are amusing toys that have also caught the interest of mathematicians and paper crafters alike. We will be making one of the simplest types, called a trihexaflexagon, which can reveal six unique patterns. Here is a video of the flexagon in action. Click on the size button (to the right of the volume button) for a full screen view.

Free Geometry Worksheets 2D Shapes Worksheets Shapes worksheets contain tracing and coloring basic shapes, identifying different shapes, matching names, labeling, counting sides and corners, printable charts and more. Straight Line Worksheets Straight line worksheets include drawing ray, line and line segment, identifying parallel and perpendicular lines, finding length and midpoint of line segment and more. Area Worksheets Webrangers Activity: Reading a Map Reading a Map Related Links Geographic Information Systems Interactive Map Center National Park Service Maps Easy Origami Envelope Folding Instructions - How to make an Easy Origami Envelope This is a great one - the easy origami envelope. You write your message or letter, then fold it into an envelope - all with just a single sheet of paper! Made this origami? Comment and Submit your photo using the comment box at the end of this page! Easy Origami Envelope Step 1: Start with an A4 paper (8 inch x 11.5 inch). It should work with most rectangles too.