Rounding Comes to Life!

Today we worked more on rounding. To make the concept come alive we created a life-size number line.

First a student would write a number to be rounded (three or four digits long)

Then another student would select the place to which we would round, and underline it (tens, hundreds, thousands). This same student would also draw an arrow to the place which dictates the "up or down" rounding of the number.

A student would write our "rounded down" number and our "rounded up" number on the two end poly spots. Our final student would walk our number up the number line to find its place.

After locating its spot, the student announces whether she would round up or round down.