Solving Equations and Operations

Mrs. Layman welcomes her third-grade class back from break and introduces a lesson on solving one-step equations using addition and subtraction. The video covers the difference between expressions and equations, the concept of isolating variables, and the use of inverse operations. Students practice solving equations with guided examples and are encouraged to follow specific steps to ensure accuracy. The lesson emphasizes the importance of checking work and understanding the commutative property of addition.

What is the advanced way to write the product of a number and 25?

• n/25

• 25/n

• 25n

• n + 25

How do you express the division of cookies among five people?

• C/5

• C + 5

• C - 5

• C * 5

What is the main objective when solving one-step equations?

• To isolate the variable

• To divide terms

• To add numbers

• To multiply terms

What is the inverse operation of addition?

• Addition

• Subtraction

• Division

• Multiplication

In the equation B + 9 = 15, what is the value of B?

• 8

• 7

• 6

• 5

What is the first step in checking your solution to an equation?

• Rewrite the equation

• Add random numbers

• Divide both sides

• Multiply both sides

In the equation 12 = 8 + C, what is the value of C?

• 5

• 4

• 3

• 2

What should you do if your solution does not check out?

• Add more numbers

• Recheck your steps

• Ignore it

• Change the equation

What is the result of solving G - 5 = 7?

• G = 5

• G = 7

• G = 12

• G = 2

How do you feel about solving equations after this lesson?

• Confused

• Need more practice

• Confident

• Lost