Number Talks MIX

(Jan. 2-6, 2017)

@mrsluclass

Solve to see if the equation is true:

@mrsluclass

Find the mistake

@mrsluclass

Which one is correct? Explain why?

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13 - 6 + 3 = 4 or 13 - 6 + 3 = 10

@alicekeeler

Part 1

@mrsluclass

What is the difference between

13 - (6 + 3) and (13 - 6) + 3

Part 2

@mrsluclass

Estimation

@mrsluclass

The situation: A homeowner tiled her floor with pennies to make the beautiful design seen below

@mrsluclass

Estimate how many pennies were used in tiling the floor

What information would be helpful in this situation?

@mrsluclass

Each =

16 pennies

= ?

@mrsluclass

The homeowner spent ~ $150 total, how many pennies does that equal?

@mrsluclass

WODB

(Which One Doesn’t Belong?)

@mrsluclass

Which one does not belong? Explain with reasoning

@mrsluclass

Would You Rather?

@mrsluclass

Justify your reasoning with mathematics

@mrsluclass

Crossing the River Riddle

@mrsluclass

The situation:

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• There are 3 lions and 3 wildebeest waiting to cross the river.
• The raft can hold 2 animals at most and needs at least one to paddle across the river.
• The number of lions cannot outnumber the wildebeest or the lions will eat the wildebeest.

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Your mission:

Help all 6 animals across the river without any wildebeest being eaten

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@mrsluclass

Teachers: PAUSE at 0:58 on the video. The answer will appear after that.

CLICK on link for video: https://drive.google.com/open?id=0B2iglg-PQyObQlRHVDdUZDlBSFU

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@mrsluclass

@mrsluclass