Sometimes you need a manipulative for each of your students in the classroom so that they can explore a particular concept. This past year my students were always wanting to get the analog clock to help them work through their story problems that dealt with time. So I created this online manipulative to help them work through the problems and be able to check their answers. It allows the student to jump to a specific time or increment the time forward or backward by hours, minutes, or seconds.

Over at aschool.us I have been creating several different tools to help with random selections.

• Random Student Selector The original random student selector. The advantage of this over other programs is that it is random but gives preference to those that have not yet been selected.
• Flash Random Student Selector A flash version of the above program.

The rule of thirds is a composition rule that helps you compose an image to make it more pleasing to the eye.

Objective:

Use Gimp to crop an image using the rule of thirds.

Example:

The original image was cropped so that the head of the fox is in the lower right third of the image.

Lesson Objective:

• Crop a picture

Example:

The image above was cropped to create a the new image below with a more panoramic feel to it.