Blog Math

Congratulations to the students who completed last week's Blog Math punctually and correctly.  Unfortunately, not all students explained their work using two different strategies that we have been using in class.

Here is a sample idea:  large fraction:  14        small fraction:   1  
                                                               3                                   6

I must determine how many sixths there are in four wholes and two-thirds.
Strategy one:  convert to common denominators, then determine how many parts are needed.
  14   =   28    then use fraction circles.
   3          6


Strategy two:  Addition
  1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +                                                                                                                        6        6        6        6         6        6        6        6         6        6        6        6         6        6        6              

 1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   +   1   =   28   =   14  
         6        6         6        6        6        6         6        6        6        6        6          6         6          3

Other strategies could have been:  Cuisinaire Rods, number lines, subtraction, multiplying fractions (gr 7), and/or dividing fractions (gr 7).

Here is the next question which is due on Tuesday April 4 at 8:10 AM.
One ice cream bar is 10% of the contents of a box of treats.  How many ice cream bars are in the box in all?  If this box cost $7.49, how much does one bar cost?  Is that a better or worse deal than a small box that contains four bars for $3.75?  Justify your thinking.