This is a higher-order thinking assignment that I created for my 5th-grade students while they were learning about area, perimeter, and volume. It also includes conversions, adding, subtracting, multiplication, and drawing. The student will design their own fish tank while having to find the perimeter, area, and volume of their fish tank. After they will be able to buy decorations for their fish tank and figure out how many fish can fit into their tank. Then they will be able to draw and color t