T4T Comparing Sets of Cubes

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Lesson Excerpt:

1.      Give the student a set of 4 green cubes and a set of 4 yellow cubes.  Say:

·         There are some green cubes in this set and some yellow cubes in this set. 

·         How many green cubes are there?  How many yellow cubes are there? 

·         Is the number of yellow cubes greater than or less than the number of green cubes or is the number of cubes the same?  Explain your thinking. 

 

2.      Give the student a set of 7 green cubes and a set of 9 red cubes.  Say:

·      There are some green cubes in this set and some red cubes in this set. 

·      How many green cubes are there?  How many red cubes are there? 

·      Is the number of red cubes greater than or less than the number of green cubes or is the number of cubes the same?  Explain your thinking.

 

3.      Give the student a set of 7 green cubes and a set of 4 yellow cubes.  Say:

·      There are some green cubes in this set and some yellow cubes in this set. 

·      How many green cubes are there?  How many yellow cubes are there?

Is the number of yellow cubes greater than or less than the number of green cubes or is the number of cubes the same?  Explain your thinking. 

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