Tuesday, May 8, 2012

Speed! - Patterns in the Cards - Eight Speed

This is the seventh post in the series of posts. - Speed! Patterns in the Cards - I created the fun card game Speed! to teach multiplication. It uses skip counting to teach children to multiply and how to multiply faster. The series of Patterns in the Cards blog posts are meant to show some simple activities that can aid in number sense development using the Speed! cards.

Eight Speed
Lay your cards out like this. What patterns do you see?

Here are the patterns I found with my son.
1. Ones digit is the same looking down the columns. 8-6-4-2-0.
2. The ones digits count backwards by 2's.
3. Tens digit is a 0-1-2-3-4 and then a 4-5-6-7-8.


Do you think these patterns would continue if we added more cards? Continue laying out Eight Speed cards with the backs up while counting by eights in your head or writing the numbers on small slips of paper.
  88 -   96 - 104 - 112 - 120
128 - 136 - 144 - 152 - 160

The patterns do continue!
Did you find any more patterns? Can you lay your cards out differently and find more patterns?

One thing I found interesting about the eights is that the one digits are the same as Two Speed, but in reverse order. (8-6-4-2-0 Eight Speed) & (2-4-6-8-0 Two Speed). This is more obvious when you do the Waldorf Circle exercise.

- draw a circle
- place 10 evenly spaced dots around the perimeter of the circle
- label the dots 0 thru 9
- starting at 0 draw lines in the order of the ones digit looking down the columns 8 - 6 - 4 - 2 - 0
- If you haven't tried this activity with Two Speed try it now and you should create a pentagon in reverse order.



When you are done with this activity get out Nine Speed and get ready for next week.

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