Curated OER
Column Addition
Third and fourth graders read the addition word problems and use the sets of numbers within the problem along with column addition to solve the problems.
Concord Consortium
Look High and Low
From the highest high to the lowest low here's a resource that won't fall flat. Given data on the area and the highest and lowest elevations of each of the 50 states, learners decide which states are the least flat and the most flat. Of...