This Winter STEM challenge is perfect for kindergarten, first grade, and second-grade engineers working together or alone in centers this winter. A great addition to your unit on snow this January and February. This resource uses the engineering design process to solve problems all winter. Your kids will have fun building a shelter, a shovel, and a clothesline to dry mittens. Each challenge has a bonus challenge to help differentiate. Make this winter season fun with hands-on STEM activities. ST