head 1.4; access; symbols; locks; strict; comment @# @; 1.4 date 2017.06.18.02.02.08; author root; state Exp; branches; next 1.3; 1.3 date 2017.06.17.12.50.18; author root; state Exp; branches; next 1.2; 1.2 date 2017.06.15.10.08.26; author root; state Exp; branches; next 1.1; 1.1 date 2017.06.15.10.08.25; author root; state Exp; branches; next ; desc @This document (Introduction) is re-created by administrator on 17 May 2017 @ 1.4 log @This document (Introduction) is lastly updated by administrator status:PUBLISHED on 18 June 2017 @ text @{ "_id": { "$oid": "59425c994975ac013cccbac3" }, "_type": "GSystem", "access_policy": "PUBLIC", "altnames": "Introduction", "annotations": [], "attribute_set": [], "author_set": [ 1 ], "collection_set": [], "comment_enabled": null, "content": "
\r\n\r\n\r\n
\r\n
GEOMETRIC REASONING\r\n

Making a magic pinwheel

\r\n\r\n
\r\n\r\n
\r\n

Task 1

\r\n\r\n
\r\n

Given here are instructions to make a magic pinwheel, which can give you many shapes at the centre.
\r\nMake a unit of the pin-wheel by following these instructions.
\r\nOnce you have 8 such units, tuck one unit into another to get the pinwheel.

\r\n
\r\n\"img1\"\r\n
\r\n

\"Try\"Try this too!

\r\n
\r\n\r\n
\r\n

Make the folds as neat as possible, and do the tucking in very carefully in order to get proper shapes inside the pin-wheel.

\r\n
\r\n \r\n\r\n

Task 2

\r\n\r\n
\r\n

Explore the pin-wheel! Try to get as many shapes as possible by sliding the different units closer to or farther away from each other. In your notebook, draw the shapes that you are getting at the centre of the pin-wheel.

\r\n\r\n
\r\n

\"Try\"Try this too!

\r\n
\r\n\r\n
\r\n

How many shapes did you get?
\r\nDoes the group sitting next to you have an equal number of shapes?
\r\nIf there are any that you didn\u2019t get, try getting them. Write names of these shapes.

\r\n
\r\n\r\n

Extension Task 1

\r\n\r\n
\r\n

In the 4th step, you get this shape. Do you know the name of this shape?

\r\n\"img2\"\r\n

\"Think\"Think about it!

\r\n\r\n
\r\n

What are the measures of the four interior angles of this shape? Justify your answer.

\r\n
\r\n\r\n

Extension Task 2

\r\n\r\n
\r\n

While making the 8 modules of the pin-wheel, What are the shapes that you have come across? Note down these shapes. If you are not sure about the name of the shape you can draw it as well.

\r\n
\r\n 
\r\n
\r\n
\r\n", "content_org": "
\r\n\r\n\r\n
\r\n
GEOMETRIC REASONING\r\n

Making a magic pinwheel

\r\n\r\n
\r\n\r\n
\r\n

Task 1

\r\n\r\n
\r\n

Given here are instructions to make a magic pinwheel, which can give you many shapes at the centre.
\r\nMake a unit of the pin-wheel by following these instructions.
\r\nOnce you have 8 such units, tuck one unit into another to get the pinwheel.

\r\n\"Intro\"\r\n
\r\n

\"Try\"Try this too!

\r\n
\r\n\r\n
\r\n

Make the folds as neat as possible, and do the tucking in very carefully in order to get proper shapes inside the pin-wheel.

\r\n
\r\n \r\n\r\n

Task 2

\r\n\r\n
\r\n

Explore the pin-wheel! Try to get as many shapes as possible by sliding the different units closer to or farther away from each other. In your notebook, draw the shapes that you are getting at the centre of the pin-wheel.

\r\n\r\n
\r\n

\"Try\"Try this too!

\r\n
\r\n\r\n
\r\n

How many shapes did you get?
\r\nDoes the group sitting next to you have an equal number of shapes?
\r\nIf there are any that you didn\u2019t get, try getting them. Write names of these shapes.

\r\n
\r\n\r\n

Extension Task 1

\r\n\r\n
\r\n

In the 4th step, you get this shape. Do you know the name of this shape?

\r\n
\r\n\"Intro\"\r\n
\r\n

\"Think\"Think about it!

\r\n
\r\n\r\n
\r\n

What are the measures of the four interior angles of this shape? Justify your answer.

\r\n
\r\n\r\n

Extension Task 2

\r\n\r\n
\r\n

While making the 8 modules of the pin-wheel, What are the shapes that you have come across? Note down these shapes. If you are not sure about the name of the shape you can draw it as well.

\r\n
\r\n 
\r\n
\r\n
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