FREE Estimation jar lessons are one of those activities that can be organized many different ways. Plus you can teach a variety of skills with a jar. Who knew a jar could be so useful in the classroom? Jars Activities, Ccss Math, Estimation Jars, Jars Lessons, Free Estimation, Cores Classroom, Common Cores, Estimation Activities, Cores States
Also on these boards
Estimation Station: Beyond the Estimation Jar!