Unit 1

    • MAFS.3.NBT.1.1 - Use place value understanding to round whole numbers to the nearest 10 or 100. (DOK 1)

    • MAFS.3.NBT.1.2 - Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction. (DOK 1)

    • Strategies for Addition
      • Break apart strategy. You break apart each addend by its place value. Then add the numbers by their place value. 
      • Open Number Line: You make an open number line and start at one number and add up the other number using a number line. 
      • Place Value Model: You make the addends by drawing place value rods. The add by putting together the models. 
      • Standard Algorithm: The way you learned how to add when you were a child.