Full Year Bundle - 16 Fun Math PBL Activities. This is a perfect Enrichment bundle to practice fraction & mixed numbers, decimals, percentages, integers, area and perimeter, algebraic expressions & equations, unit price, volume & surface area of prisms and pyramids, ratios & proportions, and money management. Some projects are seasonal, while others can be used at any time of the year. Save 30% by purchasing this bundle! 1. CREATE YOUR OWN FARM - Math Enrichment Summer Project, P