Grab these printable 2D Shape STEM challenge cards to add to your pattern blocks! Hands-on way for kindergarten aged children and first graders to learn how to make new shapes from other 2D shapes. These easy to prep printable 2D shape cards include three different sets of cards to challenge children while they learn about shapes and geometry in math while making differentiation easier than ever! #kindergartenmathcenters #stemcenters #firstgrademath #2dshapes #patternblockactivities