This week in Grade 3 math, we were exploring symmetry! We started off our week reviewing what we know about symmetry using a modified version of the Frayer Model:
Students seemed to know what symmetry is, so this was more of a review.
There were a few minutes left in class, so we created symmetrical designs using rulers as our line of symmetry. I have been playing around with iMovie, so below is a video of some of our designs:
Later in the week, we had an investigation. Each group was given 3 headings :
HAS ONE LINE OF SYMMETRY
HAS MULTIPLE LINES OF SYMMETRY
HAS NO LINES OF SYMMETRY
They also had capital letters of the alphabet and had to sort them into groups. Here is another video of the day in math:
***** The volume gets really loud around 1:20 -- by volume I mean my voice is loud. I had to turn it up so we could hear the students responses.*****
** The quality of these videos is much better on the iPad, but you get the idea!
All in all it was a great week. A couple of the KEY questions that we talked about was this week were:
Can an object or shape have MORE than one line of symmetry?
We determine that shapes can definitely have more than one line of symmetry, but some will only have one or none.
Is there a maximum number of lines of symmetry?
We also confirmed that there is no maximum, just look at a circle or the letter O!
I hope you enjoyed this entry - feel free to leave a comment!!
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