Explaining Addition Using Place Value

This lesson teaches how to explain addition using place value. It covers the importance of explaining math, using examples like the second and third grade milk problems. The lesson emphasizes breaking numbers into tens and ones, using base 10 blocks, and acting out problems to clarify solutions. It concludes with a summary of the key concepts learned.

Describe how you would explain the addition problem 12 plus 4 to someone.

What strategies can you use to explain your thinking in math?

What do you do when you have 14 ones in an addition problem?