Figuring planting dates

It's time to get ready to plant my garden again. But here in Boston we have to start our seeds indoors to give them a head start before we can put plants outside. How should I figure out when to plant my vegetable and flower seeds indoors so that those little plants will be ready to go outside after the frost-free date? The seed package tells me how many weeks early to plant seeds indoors and how long the seeds will take to sprout but this sure seems like a lot of counting backwards to figure out when I should plant my seeds here in Boston. This activity introduces students to the use of the computational power of a spreadsheets to easily count the time between two dates.

For Adventurer members we have an editable Word docx, an Excel sheet with computations, and solutions.