This How Many in All? lesson plan also includes:
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First graders use counters to show the meaning of addition (putting together). They learn that they are going to be doing an activity to teach them about addition. Students learn that they are going to separate the counters (that they selected) into two groups based on color. They work together to sort the counters on the work mat. Students write down the number of read counters they counted and the number of blue counters they counted.