Students explore subtraction in the comparative mode by answering questions of “How many more?” and “How many less?” as they match sets of buttons.
During this lesson, students apply what they know about comparison subtraction by constructing bar graphs and using the graphs to answer questions.
In this lesson, students explore addition and comparison subtraction by modeling and recording related addition and subtraction facts for a given number.
During this final lesson in the unit, the students use the mathematical knowledge and skills developed in the previous lessons as they visit five stations to review comparative subtraction.
During this lesson, the students apply what they know about comparison subtraction by constructing bar graphs and using them to answer questions.