Wednesday, December 17, 2014

Mental subtraction!

My maternity leave is over. I have jumped back into school feet first right in the middle of the Christmas season!  I really missed teaching and I am glad to be back even if it does mean giving less kisses to my little girl during the day.

The last couple weeks we have focused on mental subtraction! The kids have done really well and they have surprised me with their understanding of the concepts. It's our second year using Envisions and I already see a difference.


Introducing mental subtraction with iPads...
Practicing with I have who has.
Making 100 with mental subtraction.
Spin to make 100!
Subtract tens.

I always throw in a few review centers to keep concepts fresh...

Number riddles 
Number order
Addition strategies (part/part/whole)
Place value!

Next concept is subtraction with regrouping... More to come!