This math worksheet was sent home with the students to work on at home, with parental help if necessary. The instructions were for parents to check the students answers to make sure that they got them correct, and to help them fix their answers if needed. The purpose of this is to ensure the students are correctly applying their knowledge of counting tens and ones, and for the parents to be aware of and a part of their children's work.
I grabbed a worksheet at random, and happened to get a little girl's work who is academically high in the class. As you can see, she did not have to make any corrections to her work. Or it is possible that she worked with someone (a parent, sibling, etc.) to complete the worksheet and came up with the correct answers before writing them down.
The big idea of this worksheet is to improve the students' abilities to count by tens and ones, in this cases using cubes. This is just another activity that my MT has given the students to help them practice counting by different numbers.
To do this assignment, students could either individually count each cube to get the answer, although this would be frowned upon because it goes against what the purpose of the assignment was, or they could individually count the 10s rows and 1s cubes to get the tens place and the ones place. They could also actually use real rows and cubes in order to better visually see the answers.
To me, it looks like the student was able to correctly count first the tens rows and then the ones cubes. She also correctly wrote the tens place, such as 70 instead of just 7. She seems to have a pretty good grasp on this concept, and I would further challenge her by making bigger numbers and adding the hundreds blocks to increase her cognitive ability for this given task.
A good analysis, but think carefully about the big idea / learning objective for the task. "Counting by tens and ones with cubes" is a fairly procedural description. What are the bigger mathematical issues here? What are the different representations (other than cubes) that one might use in a task like this (perhaps to expand it and increase the cognitive demand)?
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