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Assessment checklist: solving an equal grouping multiplication problem Understanding Strategy Notation Other Student name Interprets problem correctly Represent s problem correctly Direct model / counting Repeated Addition Skip counting Multiplication fact or derived fact Writes number sentence correctly Comments Martin Discher yes yes tiles building up 11+11=22 22+22=44 11+11=22 22+22=44 direct modeled with tiles, said he counted all, but the tiles allowed him to see how the groups of 11 build up Shuhrat Suhana yes yes straws & drew circles (counted on from 11) number sentence attempt to build up X 21+21=43 accidentally drew 12 circles in second row instead of 11, dots inside circles shows her counting each circle (probably didn’t count on), may have known she could double the 21 to find the answer but didn’t know how to add 21+21 so counted all Aaron Pogarsky yes yes straws & drew circles building up 11+11=21 21+21=42 X 21+21=42 represented problem correctly, not sure if mistake is result of counting error or attempt to add 11+11 mentally, solved 21+21 without counting because he likely would have gotten a different answer (like Shuhrat)

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Assessment checklist: solving an equal grouping multiplication problem 

  Understanding  Strategy  Notation  Other 

Student name 

Interprets problem correctly 

Represents problem correctly 

Direct model / counting 

Repeated Addition 

Skip counting 

Multiplication fact or derived 

fact 

Writes number sentence correctly 

Comments 

Martin Discher 

 yes 

 yes 

tiles  building up 11+11=22 22+22=44 

    11+11=22 22+22=44 

direct modeled with tiles, said he counted all, but the tiles allowed him to see how the 

groups of 11 build up 

Shuhrat Suhana 

 yes 

 yes  

straws & drew circles (counted on from 11) 

number sentence attempt to build up 

    X 21+21=43 

accidentally drew 12 circles in second row instead of 11, dots 

inside circles shows her counting each circle (probably didn’t count on), may have known she could double the 

21 to find the answer but didn’t know how to add 21+21 so 

counted all 

Aaron Pogarsky 

 yes 

 yes 

straws & drew circles 

building up 11+11=21 21+21=42 

    X 21+21=42 

represented problem correctly, not sure if mistake is result of counting error or attempt to add 11+11 mentally, solved 21+21 without counting 

because he likely would have gotten a different answer (like 

Shuhrat)   

Eleanor Shi 

 yes 

 yes 

drew circles 

wrote number sentence 

as repeated addition of 

10s 

  decomposed into 10s and 1s 

10+10+10+10+4=44 

decomposed 11 into 10s and 1s, drew circles on paper, dots 

on first row indicate she started counting all but absence of dots on 

subsequent rows indicate she stopped counting, also only drew 9 circles in one row, 

further supporting the idea that she was not counting circles 

Jeffrey Sanzari 

 yes 

 yes 

drew seed packets 

and seeds (counted on from 11) 

wrote his number sentence 

as repeated addition 

    11+11+11+11=44 

said he counted on fingers, but dots on paper indicate he counted circles on paper, 

labeled his drawing with 11s written above his groups, 

demonstrated understanding of repeated addition with 

number sentence 

Emma Samedi 

 yes  

 yes 

cubes & drew seeds 

number sentence almost reflects 

building up strategy OR 

attempt to show 

repeated addition 

    X 11+11=22 11+11=44 almost 

building up 

didn’t group illustration of seeds in any way on her paper, probably counted cubes and not illustrated 

seeds because there aren’t dots on her paper, didn’t know how to represent the repeated addition (or possibly building up) via number sentence