Sunday, March 3, 2013

Building Number Sense with the Open Number Line

video
I've been playing a lot with the open number line lately.  It's a great way to add or subtract and works with all grades.  Each student can approach it at their level (which makes a great assessment!)  I love to have students do it by themselves and explain their thinking.  This is a great way to have students see more efficient ways of solving the problem.  It's also wonderful for children who have trouble with subtraction...they now see that it's just a relationship between two numbers.  The video shows examples of two digit and three digit numbers and numbers with decimals.  If your students understand the concept, they can take it to fractions, elapsed time, and measurement!

4 comments:

Linda said...

Hi, Ricky! Shared it with all the 3rd - 5th teachers at EWE. Remember your pals in SBISD!
Linda Alderman

Miss Roth said...

Love it! Makes great sense-even to me! Moo! Moo!
Miss you!

Ricky M said...

I believe that should be click-clack moo. Where is that book????

Manohar singh Akeli'B' said...

everyone else ritten by brain dead individuals? :-P And, if you are posting on additional social sites, has already said, but I do want to comment on your knowledge of the topic. Youre truly well-informed. I cant believe how much of this I just wasnt aware of. Thank you for bringing more information Nehru suit