Tools for Solving Word Problems
To solve word problems, carefully consider the problem to establish what you are looking for and give it a label, identify the essential information, then build and solve an algebraic equation based on that information, and check your answer.
Subject: diagram
Transcript: TRACK OF OUR INFORMATION. IN SUCH CASES, MAKING A TABLE CAN BE VERY USEFUL. BUT SOMETIMES, A TABLE ISN'T ENOUGH. DRAWING A ROUGH DIAGRAM OF THE SITUATION
Rate, Time, and Distance Problem
To solve a distance problem, a diagram is drawn, an equation developed based on the essential information, the equation is solved, and the solution
Subject: diagram
Transcript: THAT DOESN'T MEAN IT'LL BE EASY TO USE IT AN EQUATION. SOMETIMES DRAWING A ROUGH DIAGRAM CAN HELP SHOW THE WHOLE PICTURE. LET'S TRY IT. HERE'S THE PLANT
Multiplying Two Polynomials
Procedure for multiplying two polynomials.
Subject: diagram
Transcript: LIKE TERMS YOU COULD COMBINE. IN THIS EXAMPLE, THERE AREN'T. SO THAT'S OUR ANSWER. TO SEE IF THIS IS RIGHT, LET'S CHECK OUR DIAGRAM. THERE ARE SIX
Multiplying a Monomial by a Trinomial
Solving a practical problem algebraically using multiplication of a monomial by a trinomial.
Subject: diagram
Transcript: , GETTING 4J PLUS 4M PLUS 4V. ONCE AGAIN, THE DIAGRAM SHOWS US THAT WE KNOW HOW TO MULTIPLY A LONGER EXPRESSION BY A MONOMIAL. THE GARDEN HAS THREE SEPARATE
Multiply a Binomial by a Monomial
A practical problem demonstrating multiplication of a binomial by a monomial.
Subject: diagram
Transcript: STARTED WITH 4J AND NOW WE'RE TAKING AWAY THE AREA OF THE STRIP, THAT'S 4K. WHAT'S LEFT? AGAIN, THE DIAGRAM ILLUSTRATES THE ANSWER. 4J MINUS 4K