Counting unit fractions, one at a time, right past one whole
Every fraction is built from a unit fraction the same way every whole number is built from 1: five-sixths is just five copies of one-sixth, counted one at a time, "one-sixth, two-sixths, three-sixths..." Same choral counting routine as sequence counting, just with a different unit. The payoff shows up when the count sails straight past one whole and keeps going: "six-sixths, seven-sixths, eight-sixths." A lot of kids believe a fraction can't be bigger than a whole, because "you can't have more than one whole pizza." Watching the tally cross that line while counting the exact same-size unit fraction the whole time knocks that belief down fast. Count backward too. Watching a whole break back apart into unit fractions is just as informative as building one up.