Counting is a very important skill that needs to be developed in the early years of childhood. Kindergarten (ages 5-6) is usually the time when this skill is stressed. Setting certain milestones or goals for the children is a great way to motivate them, but also helps you as the teacher keep track of their progress.
Using videos as a teaching resource is a "fun" way to get the kids interested. Have Fun Teaching has some great videos that teach kids how to count by 1s, 2's, 3s...etc... They even offer videos for other subjects including: language arts and phonics.
While I may be a technology teacher. You can not solely rely on technology. Sometimes it doesn't work, so you should always have a backup. Or if you are using a video, convert it and save it to your computer. Zamzar is a great program for that.
Getting back to the dogs... Wordle or Tagxedo are both excellent websites that allow you to create a word clouds. Wordle is a little more restrictive, whereas Tagxedo actually lets you create the word clouds in a picture format (or import your own). While technically the idea is to create a word cloud, I decided, why not create a number cloud from 1-20.
Looking at the "number cloud," the teacher can ask the students to locate a certain number, find all the even numbers and circle them, or circle only the numbers 1-20 that are divisible by two. The shape of the cloud keeps up with the theme and makes the activity more interesting than a simple "number search."