Mathematics is all about patterns. Some describe mathematics as the science of patterns, and the ability to understand patterns is described as a key concept in NCTM‘s algebra standard.
I didn’t like math growing up. Now, it fascinates me almost to the point of obsession, and I attribute that to two things: (1) I now understand the math behind the procedures I was taught, and (2) I see the patterns that were never pointed out to me before.
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Since I love patterns, it should be no surprise that I am a big fan of hundred charts. The classic +1, -1, +10, and -10 pattern of a hundred chart is fundamental to a conceptual understanding of place value. So you can imagine my delight a couple of weeks ago when I saw that the remediation program my district uses had a hundred chart lesson for my 2nd graders. A lesson. As in one. That might have been fine, but I quickly found out that my struggling second graders did not see any of the patterns in the hundred chart that I hold so near and dear.
Enter Hundred Chart Bootcamp! We have spent two weeks exploring the hundred chart inside and out. Some of the students picked up the patterns right away, but others just couldn’t see them. It was fascinating to me. Here are some things I tried.
Humpty Dumpty Hundred Charts
Missing Numbers on a Pocket Hundred Chart
A pocket hundred chart is a must-have tool. You can use it to isolate the numbers in a given row or column, which makes the patterns easier for students to see. They now actually sell the pocket charts that extend to 120, so students can see that the patterns go on past 100.
Hundred Chart Masks
Hundred Chart Puzzles
Click here to download the patterns card (shown above) and the recording sheets for the mask activity. Enjoy!
Update: be sure to check out this post for an easy hundred chart assessment.