Unit 9: Seasons & Festivals - New Indian Model School, Dubai
Unit 9: Seasons & Festivals - New Indian Model School, Dubai
Unit 9: Seasons & Festivals - New Indian Model School, Dubai
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Show the students how to fold the expander: the shaded rectangles are folded in half<br />
with a ‘valley fold’ and then a ‘mountain fold’ is used to put the shaded rectangle behind<br />
the white rectangle on its le.<br />
Students enjoy the challenge of folding the paper correctly - somewhat like a fan. Help<br />
them to fold (shaded rectangles are folded in half with a ‘valley fold’ and then a ‘mountain<br />
fold’ is used to put the shaded rectangle behind the white rectangle on its le). For<br />
example, in the photo below, the ‘ones’ rectangle is folded in half (with a valley fold) and<br />
then behind the digit 3 which is on its le.<br />
Below are some pictures of a number expander with 3 place value columns, showing<br />
various ways of ‘expanding’ (or renaming) 236.<br />
Here is a fully open blank number<br />
expander with 3 blank place value<br />
columns .<br />
The number 236 has been wrien in the<br />
blank place value columns. This shows<br />
236 = 2 hundreds + 3 tens + 6 ones<br />
This shows 236 = 2 hundreds + 36 ones<br />
This shows 236 = 23 tens + 6 ones<br />
This shows 236 = 236 ones<br />
This is a ‘closed’ number expander showing 236.<br />
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