2nd Grade Math Materials (Page 3 of 3) in pdf

2nd Grade Math Materials Page 3

Module 5:!

Arrow n otaNon, a rrow w ay

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Chip m odel ( pictured r ight)

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Number b ond

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Place v alue c harts a nd m ats ( pictured a bove r ight)

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Place v alue d isk s ets ( 18 o nes, 1 8 t ens, 1 8 h undreds, 1 o ne t housand p er s et)

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Tape d iagram

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Note: S tudents w ork t hrough a

progression o f m odels t o

Chip m odel

represent t he a ddiNon a nd

subtracNon a lgorithm.

Following t he u se o f a ctual

place v alue d isks, s tudents

learn t o d raw t he d isks t o r epresent n umbers. T his m odel p rovides a n a dded

level o f s upport i n t hat s tudents w rite t he v alue o n e ach d isk ( see i mage b elow

le_). B ecause t he v alue i s o n t he d isk, t here i s n o n eed t o l abel t he p lace v alue

chart. N ext, s tudents l earn t he c hip m odel, d rawing d ots o n a l abeled p lace

value c hart ( see i mage b elow r ight). W hile s Nll p ictorial, t his m odel i s m ore

abstract b ecause t he v alue o f t he c hip d erives f rom i ts p lacement o n t he c hart.

Module 6:!

Counters

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Number p ath

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Rectangular a rray

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Square N les

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For descriptions and examples of models, use the link below and

scroll down to pages 28-45.!

How to Implement "A Story of Units" (2.16 MB)

2nd Grade Math Materials Page 3