AAA Math
Aaa Math: Counting by Threes
This lesson is about counting by threes from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.
University of Cambridge
University of Cambridge: Nrich: Skip Counting
Follow the clues Froggie gives you to help her skip count her way to the pumpkin patch. There are several solutions and you can check yours against the solutions right at this one page website.
ClassFlow
Class Flow: Skip Counting
[Free Registration/Login Required] SOL 3.9 Students will practice skip counting by 2s, 3s, 4s, 5s, and 10s. Students will use Activotes to answer related Virginia released SOL questions.
University of Cambridge
University of Cambridge: Nrich: Constant Counting
You can use your calculator to count by all kinds of numbers: 2s, 3s, etc. This one page website shows you how to do that and gives you a challenge besides. The solution for the challenge is waiting for you right at the website once you...
Beacon Learning Center
Beacon Learning Center: Three Is the Magic Number
Interactive web lesson teaches students how to skip count by 3's.
ClassFlow
Class Flow: Count by 2's, 5's, and 3's
[Free Registration/Login Required] Using highlighted hundreds charts, students write in multiples of 2, 5, and 3.