In Mrs. Essenburg's classroom we are learning to round numbers to the nearest 10 and the nearest 100. We round numbers all the time to make working with numbers easier. Understanding how to round numbers shows we have a good understanding of place value and number sense.
Also, if we can explain what we have learned to others it shows we truly understand what we are learning. Check out the videos below with two students explaining how to round!
Here is Mason W.'s video about rounding to the nearest 10.
Here is Lainie's video about rounding to the nearest 100.
Great job Mason W. and Lainie!
Something else we are working on are Math Practices.
What are Math Practices?
Math Practices describe how we should think and act as mathematicians to have a deep understanding of mathematics. We will be focusing on one or two math practices each day.
For this lesson, we concentrated on the math practice Using Numbers and Words to Help us Make Sense of Problems. It is sometimes easy to find the answer to problems, but it is not as easy to explain why the answer make sense. Check out the great explanations that the third graders gave to the rounding problems below!
Being able to explain our math thinking is a very important skill. It shows we have a good understanding or what we are learning. Great job third-graders!
Third Graders, comment below with a two or three digit number and round it to the nearest 10 or 100. Can you explain your thinking and tell us why you rounded it the way you did?
Parents or visitors to the blog, do you have a rounding problem for us to try? If you do, share it in the comment section below.
Also, it is so important for us to see how we use math in every day life. Can you think of an example of when you might use rounding in your job or during your day? If you can, comment below with an example!