DiscoverE
Build a Roller Coaster
Let the good times roll as young thrill seekers build a roller coaster on school grounds. Future engineers design and build a roller coaster from flexible tubing. The roller coaster is for a marble, so there will be plenty of room to let...
Cornell University
Catapults
Ready, aim, fire! Launch to a new level of understanding as scholars build and test their own catapults. Learners explore lever design and how adjusting the fulcrum changes the outcome.
Curated OER
Practice Regrouping with 15 to 18
For this adding and subtracting practice worksheet, students sharpen their problem solving skills as they solve 6 story problems that require them to regroup.