Bar models for addition and subtraction equations, plus addition and subtraction terms (5th grade math)
Both addition and subtraction have to do with parts and a total. We can draw a bar model to illustrate addition and subtraction equations, and vice versa: write various addition and subtraction sentences from the given bar model.
Secondly in this lesson we look at terminology related to addition and subtraction: addend, sum, minuend, subtrahend, and difference. These are tied in with simple expressions and equations.
See also
The connection between multiplication and division, simple equations, bar models, terminology
More problem solving with bar models, part 1
Math Mammoth Grade 5 curriculum