Solving One-Step Equations: Addition and Subtraction Techniques

The video tutorial introduces seventh-grade students to solving one-step equations using inverse operations, focusing on addition and subtraction. The teacher explains the 'hand method' as a unique approach to solving equations, emphasizing the importance of checking solutions through substitution. The lesson includes multiple examples and practice problems, guiding students through the process of isolating variables and verifying their answers. The session concludes with a homework assignment to reinforce the concepts learned.

What is the primary focus of today's lesson?

• Solving quadratic equations

• Graphing linear equations

• Multiplying and dividing fractions

• Solving one-step equations using inverse operations

Tags

CCSS.8.EE.C.7B

What is the first step in solving an addition problem using the hand method?

• Cover the variable with your hand

• Divide both sides by the same number

• Multiply both sides by the same number

• Add the same number to both sides

Tags

CCSS.6.EE.B.7

What is the opposite operation of adding a number in the hand method?

• Adding the same number again

• Subtracting the same number

• Dividing by the same number

• Multiplying by the same number

Tags

CCSS.HSA.REI.A.1

What should you do if the problem involves subtraction?

• Use the hand method directly

• Multiply both sides by -1

• Add the same number to both sides

• Stop, Chop Chop, then use the hand method

Tags

CCSS.6.EE.B.7

What is the purpose of the 'copy paste' rule in the hand method?

• To check the solution

• To simplify the equation

• To ensure the equation remains balanced

• To copy the variable to the other side

Tags

CCSS.HSA.REI.A.1

In the hand method, what does the 'closest sign wins' rule mean?

• The closest variable to the sign is used

• The closest sign to the number is used

• The closest operation to the variable is used

• The closest number to the variable is used

Tags

CCSS.8.EE.C.7B

What should you do if you haven't used a variable in the hand method?

• Multiply it by -1

• Add it to both sides

• Drag it down

• Ignore it

Tags

CCSS.7.EE.B.4A

What is the final step in solving an equation using the hand method?

• Multiply both sides by the same number

• Divide both sides by the same number

• Check the solution by substitution

• Add the same number to both sides

Tags

CCSS.HSA.REI.A.1

What does the hand method help to achieve in solving equations?

• Finding the variable's value

• Simplifying the equation

• Balancing both sides of the equation

• All of the above

Tags

CCSS.6.EE.B.7

Why is it important to show your work when solving equations?

• To avoid using a calculator

• To make the problem look longer

• To make the teacher happy

• To ensure accuracy and understanding

Tags

CCSS.8.EE.C.7B