With the permission of my IT guy, he opened up Twitter so that my students had access to it on the school network. I gave each student 25 1-inch foam tiles and asked them to create a pattern with them. We discussed that we wanted a linear pattern (the change was consistent) and it had to be a pattern, not random arrangements with a certain amount of tiles.

We have 1 iPad2 cart in my building, that I'm hogging. :) I asked the student to create a Twitter account, take a photo of their tiles, and post it on Twitter.

I've asked the students to use the hashtag #Oswald123456. Where 123456 is the date. I may add a seventh number incase we are doing more than one problem each day. OR even an 8th number to specify what period. Sheesh, this hashtag is getting loooong.

#### During Class:

Once the students posted their photos, we took a look at each one and discussed a few things:

- Is it a pattern? Meaning, can we easily create the next term based on the 3 they gave us?
- Is the pattern linear? In other words, do we add the same amount of tiles each time?
- How many tiles are in each term for the first 6 terms?
- How many tiles are in the nth term?
- How many tiles are in the 50th term?

Here are a few examples of patterns we decided were linear?

Below are some examples that we decided were linear, but we couldn't easily determine how to create the next term with tiles:

Finally, the follow let to some interesting conversations about linear patterns and what is not linear.

#### Conclusion:

Going through each photo one-by-one proved to be successful. How do I know? The next day the students easily created linear patterns at their tables with the tiles.

## No comments:

## Post a Comment