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GCF and LCM -- good ideas for math notebooks

Classroom Freebies Too: LCM - Least Common Multiple @Lisa Sharpe Chambliss

Would need to take off common core,but love the idea

Weekly Common Core Math Review for ALL the 4th grade common core math standards!

13 Roll and Answer Math Centers for Common Core Fraction Standards! Easy to play and aligned directly to the common core! All you need are two dice!

Clutter-Free Classroom: More Rounding Ideas & Activities {Common Core 3.NBT.1 and 4.NBT.3}

This chart will be of great use for Common Core math when students come to story problems. Great key words!