BEST SELLER! Looking for an activity for back to school after winter break? This winter STEM activity has three main paper engineering challenges, plus warm up activities and multiple bonus challenges. Explore symmetry with Winter STEM Snowflake Challenges while engaging students with hands-on design inspired by the beauty of snowflakes! This is the perfect tie-in to the book Snowflake Bentley (about Wilson Bentley). Reinforce geometry and engineering skills while sneaking in some fine motor