I use these with my kids after I introduce the concept. When students are working on word work, they can match up these puzzles. There are 20 different puzzles designs, with 52 different contractions. I would recommend printing on different color card stock and laminating for student use and to lengthen durability.
Also check out these other great resources:
Place Value Centers, Exit Tickets, Assessments 1.NBT.2
Let's Plan a Birthday Party Project Based Learning Activity
SCOOT Word Problems 1.OA.2 Common Core Aligned
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