These are 2 no prep self paced complete math units that allow for easy differentiation. Full answer keys are included. These area and perimeter units include step-by-step teacher instructions, worksheets and practice tests with full solutions that mirror the actual tests. Perimeter: rectangle, square, triangle, regular shapes, circle (circumference), irregular shapes, determine missing side lengthsArea: rectangle, square, parallelogram, triangle, trapezoid, circle, compound shapes, determining m