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Category Archives: Geometry

As part of our Welcome to School unit, our math workshop centers focused on a few of our basic math skills that we’ve been learning on the first few weeks of school.

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We’ve been working on counting with 1:1 correspondence, number recognition from 1 to 10, sorting by size, shape, and color, and writing numbers from 1 to 10.  We filled up our fish bowls matching the written number with the correct number of fish.  Students made pictures and designs by sorting with shapes.  Students also worked on putting pictures of numbered frogs in correct order.

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We have been learning quite a bit in math this past month!  In Kindergarten we’ve been learning how to measure using standard / non-standard units.  First grade we have been working on Geometry learning about symmetry, congruence, and making bigger shapes using smaller shapes.

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As a spiral review our K-1 All-Stars have also been completing centers reviewing their addition and subtraction facts.  Kindergarteners were allowed to use counting bears to help them with the concepts.

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This week both Kindergarten and 1st grade began their Geometry units this week.  1st Grade is reviewing plane shapes and how to manipulate plane shapes to make other shapes.  Kindergarten is learning names of different plane shapes and their attributes.

The whole class was divided into teams of 3 and went on a scavenger hunt looking for things in the classroom that represented plane shapes.  Then they constructed a four corner map showing the items they found.

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For math workshop students sorted shapes and picked shapes based on their number of sides in a Geometry Tic-Tac-Toe game.

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At my current school we started our unit on fact families today with a lesson on commutative property using the SMART board. At workshop students were able to draw a card and create addition sentences based on that card using manipulatives and a work mat.  Tomorrow we will be creating fact family maps during math explorations.

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Students drew a card and counted out that number of shapes onto the top of the plate.  They then split up the number of shapes into the two separate sections on the plate.  They then created addition sentences using the commutative property of addition.  Here you see a student making 4 + 2  =  6 as well as 2 + 4 = 6.

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Student’s would then draw another number and complete the whole process over again.  This student drew the number 4.  The addition sentence on the paper was from her previous number that she drew which was 5.

For spiral review in math workshop we had number / quantity review, patterns, building shapes using smaller shapes.

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If you notice on the first picture students were building a hexagon base by stacking two trapezoids next to each other on top of the hexagon.  Geometry in common core requires students to use those critical thinking skills by being able build bigger shapes with smaller ones.  Students used lily pads to put the number of counters on that lily pad that matched the number.  In the last picture a student was creating an AABB pattern.



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