The Operations Series – Addition
There are two parts to being able to add reliably. One is mastering addition facts (such as 4 + 3 = 7) and the second is combining addition facts with place value (such as 18 + 14 = 32). It is also helpful to be able to estimate an answer to make sure their computation is correct. We will work on all three of these.
Grades 1 and above: Addition fact fluency using Japanese visual method
Grades 2 and above: Two digit addition with “carrying” using popsicle sticks
Grades 3 and above: Concept of addition useful for word problems
Grades 4 and above: Decimal addition model
Grades 5 and above: Fraction addition model