Multiplication, Multiplication, Multiplication!
One center I had this past multiplication unit was using the strategy of making equal groups. I have these ReALly CoOl double dice...check them out:
They are so neat because you can roll the dice and get 2 numbers at once. I have my students roll the dice once and then they have their multiplication sentence.
For example: The blue dice in the picture above has a 4 on the outside and a 5 on the inside...this make 4x5!
For this problem, there would be 4 hoops and 5 counters in each group.
Alternatives: Many people can't find these hoops...so you could use paper plates, stitching hoops (super cheap), hula hoops (super fun), anything that can distinguish groups.