I incorporate many academic areas into my classroom through studying plants. We grow plants from cuttings, from seeds and from bulbs. We start at the beginning of the year and by May, we have many different kinds, so my class holds a Mother's Day plant sale. Students compare and contrast the growth of the plants and record the plants' progress in their writing journals. Students sell the plants so collecting money and making change become part of the project. They calculate how much was spent on supplies and how much profit was made. We purchase books for the school library with the proceeds. We've been doing this for three years and the students just love this project!