Source: Web
Christmas is coming, there are no jingle reindeer and bells, no snowy woods.
But we can cut it ourselves
snowflakes
Decorate the Christmas tree or stick it on the glass to create an atmosphere.
The key is to stack the clippers with the baby, both spent
Parent-child time
, and can help children
Accumulate spatial imagination
, to the junior high school regular exam
Folding issues
It will also be simpler.
Cut snowflakes encountered
The first conundrum
:
The square paper is folded in half twice, forming a crossed diagonal crease. After this
How to divide a triangle into three equal parts
At first, Xiao Qi casually folded it, always asymmetrical.
Later came to mind one
Simple way
A flat angle of 180 degrees, divided into three parts is 60 degrees, just take one
With a triangular plate of 60 degrees
Just draw a line.
Stack the right corner along the dotted line, and then fold the left corner up, in half from the middle.
Drawing a favorite pattern allows your child to use his imagination freely.
Note: When drawing a pattern, if the line
Draw all the way to the far right
, the description does not need to be cut, the part of the graphic after it comes out is
Looping
Together.
Draw it casually, it’s really a flower!
Xiao Qi cut another one, it didn’t look right, how to see that the outermost was square, not hexagonal.
After thinking and trying,
It turns out that because
After folding it out like this, the top half of the paper is somewhat
There is no overlap enough for twelve floors
Workaround:
Cut off the areas where the number of layers is not enough to twelve along the edge of the paper, about two or three times. It looks like the bottom left corner of the figure.
After trying it, look at it again, it is indeed a lot more refined.
Wa’s favorite question must be,
Why are snowflakes six petals, and why are there not exactly the same snowflakes?
Younger children may not understand. Then tell them:
Snowflakes are children of nature and are as unique as every child.
What else can I talk to my child?
straight angle
round angle
Axisymmetric graphic
Center-symmetrical graphic
You can also try folding into eight lobes, four lobes.
At the end of the article, there is a shared pattern, you can try it, it is much more exquisite than Xiao Qi’s own cutting.
Why are stacked shears good?
The folding problem will involve a little in primary school, and it is a common test center for the middle school entrance examination in junior high school
This type of problem is mainly solved by corresponding edge, angle relationship, congruence, similarity, etc. If it is examined together with the problem of moving points, it is still somewhat difficult.
Conclusion
Finally, share a few pictures, if you feel that everyone is complicated, you can simplify it yourself.
Xiao Qi mirrored the image so that it was easy to draw.
The black part is cut out
Prepare a few pieces of cardboard or foam paper and do it!
Hands, but also brains.
(I heard that on the thumb more.)
Leave on for two seconds
, there will be a big thumbs up!
If Xiao Qi’s sharing is still to your liking, please try it! ）
Source: Web
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