I found this great math site by Glencoe on a blog I recently started following, InTech InSights by Karen Ogen. I am always looking for ways to practice the online tools that are similar to those used in testing, and this site has both a ruler (which doesn’t have the zero line at the end) and a protractor. Not only is is great for testing, there are tons of other manipulatives, workmats, storyboards, and game mats available (Base Ten blocks and boards, balance activities, calendars, grids, clocks, money, shapes, spinners, thermometers, counters, fraction pieces, and a bunch of other items). The site is great for PK-8th grade, and will work well on the ActivBoard! Check it out!