Monday, November 29, 2010

Puzzle Sheet

I'm proud of this puzzle sheet I just made, and I like the self correcting aspect of these things. I think that if I had 20 more hours each day, I could spend my time making these types of things up. Notice that it basically has the exact same pictures from the previous sheet, but now the students have to place the vertices in order and determine what type of triangle congruence it is.

After we had our day of constructing triangles in geometry to see if they were all congruent or not, and after we discussed how to read information, then I had the kids learn about the various postulates and theorems (SAS, SSS, ...). THEN they're ready for this puzzle just to see if they can piece things together. If they complete the congruence statement with the triangle vertices in the right order, and if they correctly place them on the blanks at the bottom, then an interesting fact appears. (UPDATE: yeesh! There was a typo on the picture in #10, but it's fixed now in the download.)


  1. I'm tired just thinking about the effort this took to make. Is geometry your only prep?

  2. Well, it was a BUNCH of copy/paste actions, so that saved time. Also, depending on how you count it, I have either 2 or 2.5 or 3 preps: engineering, and geometry for 2 different levels of kids. So, yes, I have a lighter load this year. From what I hear, either I'll have 3 or 4 (5?) preps next year ... no more worksheet creating for me.

    1. Anonymous6:20 PM

      what letters r u supposed to put in the blanks

  3. I was unable to resolve the puzzle! you seem to be a math GURU! Simply superb blog to be bookmarked..keep it up

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  4. Thank you for the Triangle Congruences Puzzle!! I used it today with great success and blogged about it here...


  5. Thank you for creating this! It's a fun puzzle!