Cool Mental Math Multiplication Trick

Cool Mental Math Multiplication Trick

                                                                                      POW # 9

Mr. S. has 9 marbles in his pocket; 4 green, 2 red, 2 blue and  1 yellow.  What is the probability of him reaching into his pocket and pulling out a blue marble?  If he puts another blue marble into his pocket.  What is the chance of him now pulling out a blue marble?

Due:  Thursday, February 15th

Volume and Surface Area

Volume and Surface Area of a Triangular Prism

Conversion of Metric Units

Metric Conversions Using the Shortcut Method

Click on the link below for reinforcement in Converting Linear Units.

http://ca.ixl.com/math/grade-5/compare-and-convert-metric-units-of-length

Rotational Symmetry

Check out the link below for a review of Rotational Symmetry.
http://www.mathsisfun.com/geometry/symmetry-rotational.html

                                Perimeter and Area of a Triangle

Click on the link below and scroll down to explore the perimeter and area of triangles.

                                    

Prime Factorization
Click on the following video and an interactive game to help you understand              prime factorization. 
http://www.mathplayground.com/howto_primefactorization.html

http://www.mathplayground.com/factortrees.html