Multiplying Fractions Card Game:
Students are each provided a worksheet. In pairs, they also receive a "game board" (simply a white sheet of paper that I've copied with a multiplication symbol and two lines as part of the fraction) and a deck of cards.
Students are instructed to take turns drawing two cards to represent a fraction. (K=13, Q=12, J=11, A=2) Then, students copy down their problems on the worksheet and multiply the fractions. For the time I've allotted, I required them to work through the entire time to aim for about 5 total problems.
For an added challenge, you can require that they label their fractions; unit fraction, non-unit fraction, or improper fraction.
Dividing Fractions with Pattern Blocks:
Many of my students have had difficulty visualizing operations with fractions. This activity helped some, and for others, they just enjoyed playing with the shapes. In either case, they practiced solving division problems, so I was happy.
I prepped this activity by cutting out pattern block shapes ahead of time from construction paper, minus the squares and the skinny diamonds, which I found didn't fit well in this activity. I kept the shapes all unified colors to make explaining the activity easier. Here's a great template that I used.
I first had them outline the hexagon shape 6 times to represent 3 different division problems. Then, I allowed them to paste whichever shapes they wanted into their hexagon outlines. They could use more than one shape as well in a hexagon, so long as it was the same shape, (ie: 2 triangles = 2/6).
Then, they were required to solve their division problem. (Ie: 1/2 / 1/3 = 1 1/2) Students were then able to visualize "how many times does that shape fit in your original number?"
It took some playing with the shapes to help them understand. This project took some time, but it was well worth it for many students and will be great for Open House!
Multiply Fractions in a Recipe:
Students find a recipe they like and then are required to change the ingredient amounts to accommodate 2 more servings. Here are my recipes that I found online and put in one document.
Their finished product included their original recipe, a drawing, and their new ingredient list, as well as their work stapled to the back.