Solving Inequalities

Basic inequalities are solved in the same manner as equations.  Isolate the variable on the left.  The inequality sign will replace the equal sign.  Remember that when multiplying or dividing both sides by a negative number, the inequality sign is reversed.  When graphing the solution set on a number line - an open circle means that the number at that point is not included in the solution set.  A closed circle means that the number at that point is included in the solution set.  This is represented by the ≤   or    ≥  signs.   The > and < represent open circles.  Here is a Brainpop video about graphing inequalities.  Take a graded quiz after viewing the video.  Print out your results and turn them in to me for extra credit.  Again you may need to sign up for a free trial.

Two-Step Equations

Today we began working with equations requiring more than one step to find the solution.  Remember that the object in working toward the solution is to isolate the variable on one side and have it equal some real number on the other side of the the equal sign.  Here is a movie about two-step equations.  You may have to sign up for a free trial in order to view the video.  Your free trial will last only 5 days but during that time you can watch videos and complete activities related to topics in math.  Try a couple of the activities related to topics we have already covered and let me know if you think BrainPop is something you would enjoy being able to use at school.

Love Those Comments - Solving Equations

I am really loving all of the comments.  I'm glad that some of you are finding the practice activities fun and helpful.  I think everyone did really well today in class with  evaluating expressions.  Our next topic will be solving equations in one-variable.  Try this Shooting Hoops Game and leave me a comment to let me know how you did.  I can solve the problems, but unfortunately, I don't seem to be a very good shot.  See if you can get a friend or family member to join you for a two-player game.

Evaluating Expressions

A variable is a symbol or letter used to represent a number.  In the unit Equal or Not, we are evaluating expressions in one variable.  Try this activity Evaluating an Expression with 1 variable.  Play the COUNTDOWN game 3 times and leave a comment letting me know your best score.   So far, my best score is 14.  Can you beat that?!

Onward to Solving Equations

Today you completed your post-test on Probability and Exponents.  I would like to know how everyone feels as to the difficulty level of the post-test.  (Do you feel that you did well or did you find it difficult to complete?) 
Next we will explore equations and expressions.  Once you feel confident in your ability to translate written expressions into algebraic equations, I would like for you to trying this activity on Translating and Solving Equations.  Once you have completed the practice, leave me a comment telling me what you have learned about equations and expressions.