I take two steps forward
I take two steps back
We come together ’cause opposites attract
I’m like a minus, she’s like a plus
One going up, one coming down
But we seem to land on common ground
Like some of the above lyrics from a popular song in the late 1980’s called Opposites Attract, the activity Opposite Quantities examines situations that combine to make zero.
In this activity, visual models combine with symbolic and verbal representations to illustrate situations that combine to make zero. Students are presented with many familiar real world situations that help them to understand this concept, and prepare them for adding positive and negative numbers. Using a variety of input modes that include matching, number lines, as well as positive and negative clickable buttons, students demonstrate their understanding of situations that combine to make zero.
Click here to try it : Opposite Quantities
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