February STEM Creativity Challenge Cards Celebrate friendship, kindness, and winter wonder with this set of 20 February STEM Creativity Challenge Cards! Designed for grades Kâ4, these hands-on, low-prep prompts help students build, design, and problem-solve using simple classroom materials like LEGOÂź, blocks, Play-Doh, or recyclables. Perfect for STEM centers, morning tubs, Makerspace, early finishers, sub plans, or Valentineâs Day activities, these challenges explore February themes such as