Core Knowledge Foundation
Columbus Sailed the Ocean Blue
Young adventurers embark on a journey, setting sail along the blue ocean with Christopher Columbus. Teachers will find that this unit makes their lesson planning smooth sailing!
Curated OER
Planning a Trip for Christopher Columbus
First graders plan a trip for Christopher Columbus. They use their math skills to construct a ship for Columbus' voyage. They show their ship and calculations to their classmates and build graphs to show the amount of supplies needed to...
Curated OER
A Blast From The Past
Middle schoolers investigate ratio and proportion as they solve problems. In this algebra lesson plan, students calculate the percent increase on salaries and convert between decimals and percents to calculate. They rate job positions...
Curated OER
Length
Third graders examine and explore a variety of ways to measure length. They discuss how to measure large objects using the end-to-end method, and in small groups measure the length of the room using the end-to-end method with a...