Curated OER
Money Marvels
Second graders explore various combinations of coins and dollars that add up to make given totals. They complete five different studying stations, completing a worksheet at each center, and mentally perform calculations involving...
Curated OER
The Part-Adder 2
Third graders use mental-math strategies to solve two-digit plus two-digit addition problems. They observe and discuss online demonstrations, solve word problems as a class, and independently solve problems and describe their solutions...