If you teach Engage New York math curriculum for third grade then you will find this very helpful. It includes 6 math centers that are aligned with the fourth curriculum module.
The concepts practiced in this product include:
Spin the Area - Draw rectangles and multiply to find the area
Calculate the Area - 12 task cards with different shapes to calculate the area of each shape
What's Missing - write a multiplication equation to find the area of each rectangle
Dream House Fun! - breaking apart a larger shape into 2 smaller shapes to find the total area
Bedroom Match Up - matching rectangles with the correct area