Mystery Perimeter Freebie from Laura Candler - Complete hands-on lesson for introducing students to finding unknown sides of irregular polygons - CCSS Math Content 3.MD.D.8 and also effective with 4th and 5th grade for review and remediation
FREE Island Conquer Area and Perimeter Math Game - CCSS Aligned with 3.MD.5, 3.MD.6, and 3.MD.7 and also works as an area and perimeter review in 4th and 5th grade - Great for math centers and partner practice!
Fishbowl Multiplication Freebie - Common Core Aligned with 3.OA.A.1 - Fishbowl Multiplication is a simple hands-on activity created by Laura Candler for helping students make the transition from addition to multiplication. Students use manipulatives to discover that multiplication facts are just another way of writing addition facts. This free resource includes both student and teacher directions, a game board, and game cards.