Arrays- Roll dice, fill in an array (ex: roll a 4 and fill in a rectangle on the grid-write the total number of squares inside the rectangle) Game over when player cannot fit their array on the game board.
Here is a page from Symmetry math journal @ Runde's Room. This is a joy to read. The teacher has taken such pride in creating a journal entry that is clean and structured. It allows comparisons both vertically and horizontally.
one of my favorite examples of an interactive Math notebook dandelions and dragonflies: Interactively Math! This is adorable - put the multiples in the M! I think this would help reinforce the word multiple. Love this idea for my future students!
Of course I just finished fractions, but kids can always use reteaching. Here is a template to make a "fraction flipper" showing equivalent fractions/fractions that equal Also find music and decimal flippers here along with related worksheets.