Week of October 20-23

This week, the 5th graders learned about what it means for a game to be fair vs unfair.  We played a spinner game where you had to add the numbers on each spinner.  Player O got a point if the sum was odd, and player E got a point if the sum was even.  At first, many of us thought that the game was unfair, but after calculating the theoretical probability of each player winning by creating a table or diagram, we realized it actually was a fair game.

HW: Complete Think Deeply #2 for "Odd or Even"

In 4th grade, we learned about how to use guess and test with an organized list to solve two equations that go together.  We discussed ways we can eliminate items from the list (when an item costs nothing, when the difference would give us a negative number, number pairs that are far apart when you have a small difference, etc.).  We did some more practice at the following site:
http://flexmath.ck12.org/lesson/algebra/guess-and-check-to-solve-a-system-of-equations/presentation

HW: Think Deeply #1 and #2 for "A Penny for Your Thoughts"

Groups 3a and 3b learned about liquid measurement today.  We used tubs of water and containers of varying sizes to explore English units of capacity (cups, pints, quarts, half gallons or pottles, and gallons). We then figured out how much lemonade we would need for a class party by converting from one unit to another.  The following picture helped us with our conversions:

HW: p. 59 and 61