Symmetrical Patterns Online Hot

From site:  This website is about symmetry. It has a couple of exercises for learning about reflective and rotational symmetry, and some examples to practise identifying symmetry. It also lets you design symmetrical picture online. It uses JavaScript to do this. This means that your finished symmetrical picture is not a conventional picture, so you can't save or print it in the normal way.

There are two simple exercises for learning about reflective and rotational symmetry. In each, you choose a shape (rotational) or letter (reflective) and think about whether it has the right sort of symmetry. Then you test it. The rotational symmetry page rotates the shape. If it isn't rotationally symmetrical, then it will be a different shape after being rotated. The reflective page draws a line, horizontal and vertical, rubs out half the chosen letter, and mirrors the remaining half the other side of the line. If it looks the same as the original letter, then it must have that sort of symmetry.

There is a page of examples of symmetry. They are small symbols and pictures of many different types of symmetry, and when you click on one, it tells you what the symmetry is. Like the exercises described above, it's best to think before clicking what the symmetry is, and then see if you're right. There are a couple of traps! To be truly symmetrical, the whole of the picture or symbol must rotate or reflect, and the colours must be the same.