## Designing in 2-D

First grade mathematicians have been learning about the attributes of 2-dimensional shapes. Then they used the shapes to create new shapes. Take a look!

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First grade mathematicians have been learning about the attributes of 2-dimensional shapes. Then they used the shapes to create new shapes. Take a look!

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Students in Room 123 have earned a lot of Tiger Tickets for showing the Richards Way at school! Of course, students wondered exactly how many tickets there are in our bin. Finding the answer to this question provided a chance to review place value counting concepts and practice different strategies for adding double-digit addition problems!

First, students counted tickets individually and then worked in pairs to add the amounts together. Take a look at the process!

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Partners shared their totals.

The class gathered to add those amounts.

The grand total? 687 Tiger Tickets!

Richards students are collecting coins to benefit the Leukemia & Lymphoma Society. Here in Room 123, we also used this drive as an opportunity to count coins.

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Mathematicians in Room 123 had earlier worked in teams to solve this problem. Then they took their thinking deeper!

The next day, they again worked in their teams to analyze how Puzzled Penguin solved the same problem. They compared their work with Puzzled Penguin’s work to determine if he was correct and then to identify the error Puzzled Penguin made.

Finally, students gathered to share their thinking. Take a closer look at their work!

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Just before spring break, students in Room 123 completed another round of the Book Order Project. By the time they returned from break, the books had arrived!

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After comparing their final vote tallies, first graders learned that *The Pigeon Needs a Bath* edged out *Extra Yarn* by just one vote! After the winner was announced, students celebrated in the Great Hall.

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When the day starts like this, you take advantage of the circumstances! Mathematicians in Room 123 began their day by making predictions about how many inches of snow would fall by the end of the storm.

They discussed the results, as well as the fact that they will need to wait until Tuesday to find out how accurate their predictions were.

Then I told students about the year we got about 100 inches of snow and asked if they could show what that would look like. The extra challenge? Students couldn’t use rulers; they could only use 15-inch strips of paper! Why use only 15-inch strips? To use these strips, students applied their learning about 5- and 10-groups as well as place value. Further, they had to figure out how to show the final 10 inches of snow using the 15-inch strip. Take a look at their work:

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After determining the winners in the first round of the Tournament of Books, mathematicians in Room 123 considered a new challenge: how many more votes did the winning books get?

This challenge served as the introduction to a new type of math problem: comparison problems. Students worked in small groups to find the answer, using different math tools and strategies. Take a look!

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The votes are in for the first round in the 1st Grade Tournament of Books! Mathematicians in Room 123 used what they have learned about place value to count the votes and determine the winner in each match-up.

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Sometimes the best math thinking doesn’t happen during math class! Students in Room 123 love to check out the Clustr Map on our class blog, looking at where our visitors have come from and how many visitors we have had.

Near the end of February, students noted that there had been 269 visits so far that month. I asked them to figure out how many more visits there would need to be to get to 300 visits. Take a look at the different ways students solved this problem: