Hello students and families,

Here is a quick demo of how to multiply using an open array. I’ve tried to cram 3 days of lessons into a 5 minute demo, so hopefully it makes sense!

Enjoy –

Wednesday, January 18, 2012

Hello students and families,

Here is a quick demo of how to multiply using an open array. I’ve tried to cram 3 days of lessons into a 5 minute demo, so hopefully it makes sense!

Enjoy –

hi!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Thank you for posting ! My 4th grader needed help with this and I had never heard of it….

Hi,

I love this method!

me too!

I like the multiplication open arrays that you showed us it is a easy way to remember multiplication.

At first I thought multiplication was hard.But now that I know how to do it it gets easier every time we work on it.

I prefer a calculator – handheld, phone, computer etc..

Or sometimes I call my mom.

Seriously, arrays are cool to keep it simple, and conceptualize.

Old school, alga rythims rule.

Makes sense to me!

Open arrays are so much fun!!!

no it ISN’T

Sorry, Anita – I’m with Zaiga on this one. Did you see the latest pencast on multiplication boxes? you might like that better.