Science 9 - Notes on Nondisjunction and atypical  meiosis. (notes are attached below as PDF file below) 

     Class/homework:   Start studying notes 15-20 minutes each night

                                     Reproduction Test May 26

Math 7 -Solving Algebraic equtions review(See attached PDF file for a copy for today's notes)

  Class/homework::  Page 249 # 5 ,6, 7, 10,11, 12, 14

                               Test on May 11

 Math 8 - Solving rates problems (Attached below as PDF file is today's notes)

  Class/Homework:  Page 308 -     #3ab, #4ac, #5, #6, #7, #9,  #11, #12 (Use 15% tax)

 Science 7 -  Elements found naturally on earth (Attached below as PDF file is today's notes)

             Ch. 4 test Thursday