36 printable pages to help your students develop their problem-solving skills. The goal of each page is to divide the zoo animals into separate enclosures by drawing two, three, four or five straight lines (fences). On some pages, students separate the predators from their prey (panther and sheep), while on other pages each hungry animal is enclosed with its food source (a bird with a worm, a spider with a fly, a penguin with a fish). Students can use wooden skewers (from Walmart or the Dolla