Solving Equations: Summary: Solving Equations
This clip summarizes how to solve equations. It describes the relationship between word problems, number sentences and equations, noting that the latter are, "Â…nothing more than a statement that two mathematical expressions are equal." The clip rev...
Solving Equations: Unknowns, Coefficients and Constants
This clip introduces the terms "unknowns," "constants" and "coefficients," and explains the role each plays in a word problem.
Solving Equations: Introducing Equations
This clip introduces a type of number sentence known as an equation, which the clip describes as "a kind of balance scale" having two parts connected by an equal sign.
Word Problems: Two-Step Problem, A
This clip introduces the use of parentheses in two-step problems, explaining that the first step is always to solve the problem inside the parentheses, and then use that answer to solve the main problem.
Word Problems: Turning Word Problems Into Number Sentences
This clip explains that students who have no trouble with ordinary arithmetic sometimes get confused by word problems. The clip then suggests ways to solve word problems by breaking them down into a series of steps.