![](https://jdaniel4smom.com/wp-content/uploads/Ghostly-Cup-STEM-Challenge-Cards-small-square-150x150.png)
Cup stacking STEM challenge cards are fun to explore. They invite children to build structures with plastic cups. The twenty-four cards feature challenges that use from three to six cards. The designs on the cards could be combined to create cup stacking ghost towns. Getting the Cup Stacking STEM Challenge Cards First, you will need to Continue Reading