Sunday, February 19, 2012

Valentine's Day

The Lily Pad community celebrated Valentine's Day on Tuesday.  We shared notes of appreciations, valentines, delicious treats and, of course, some sweets to eat!








In math, the students continued their work with tetronimoes, area and perimeter.  Students used the 5 different tetronimoes to try to tile an 8 x 10 rectangular grid.  We found that 3 of the 5 shapes were able to completely cover the grid and two others did not. As a challenge, students tried to fit 2 of each shape (10 total) to cover a 5 x 8 or a 4 x 10 rectangle.  This tiling required the students to flip, turn and slide the shapes in order to fit them completely into the rectangle.




 Next week we will be working more on the concept of area using tetronimoes.

The Calcite crystals revealed themselves to our student geologists this week. Students found that when you place a drop of a weak acid, such as vinegar, on calcite, it will bubble. This happens because a reaction causes a little bit of the calcite to break down, releasing carbon dioxide gas, making bubbles. Last week, students noticed that a few of the rocks they tested appeared to have calcite.  To be certain, students poured some of the vinegar into an evaporation dish and let these dishes sit ver the weekend.
Calcite Crystal

Limestone

Marble
  Students noticed that calcite crystals are white and a feathery shaped crystals.  They found evidence of those same crystals in the marble and the limestone. This week also read about minerals with special meaning, birthstones!



Upcoming Events

  • Dream Camp Group B meets on Tuesday
  • No School for Students on Friday, February 24

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