Set up a STEM challenge task cards center with building bricks like LEGO® or Meg Bloks! Students will use engineering skills to plan, design, build, and measure their creations. These mats are reusable! Students spin paper clips to randomly select design criteria, so the mats can be used multiple times to try different design parameters. ✅ What You'll Get ✅ Teacher instructions and sample imagesLetter to send home to parents, caregivers, and friends to ask for donations6 Halloween-themed STEM