Preskoči na glavni sadržaj
Prijava
Sign up for FREE
arrow_back
Biblioteka

OAT Lesson 20: Dealing with Negative Numbers

star
star
star
star
star
Posljednje ažuriranje almost 3 years ago
16

JUMP START: Which One Doesn’t Belong: Rational Number Arithmetic

(5min)

Obavezno
1

Develop Understanding

Today's Learning Goal: (G7, U6, L9)

  • Generalize (orally) that doing the same thing to each side of an equation generates an equivalent equation.

  • Solve equations of the form px + q = r or p(x +q ) = r that involve negative numbers, and explain (orally and in writing) the solution method.

Today's Materials:

  • Laptop

  • Laptop charger

  • Pen/Pencil/Paper/Expo Marker (optional)

Please complete the Jump Start (activator). You have 5 minutes before we review. This is independent it should be silent.

Reminders:

1. Ready for class

2. No cellphones

3. Volume must be low.

4. Read and follow all directions

5.) Take your bag off and immediately begin the Activator.

Pitanje 1
1.

Which One Doesn't Belong

Launch: Practice Problem - (10 min)

I do (question

We do (question

You do (question) -9

Obavezno
0
Pitanje 2
2.

4x = -28

Obavezno
0
Pitanje 3
3.

x - (-6) = -2

Obavezno
0
Pitanje 4
4.

-x +4 = -9

Obavezno
1
Obavezno
1

Activity 1: Old and New Ways to Solve

(12 min)

Obavezno
1
Pitanje 7
7.

Obavezno
1
Pitanje 8
8.

Obavezno
1
Obavezno
1

Activity 2: Keeping it True.

(15min)

Here are some equations that all have the same solution.

Obavezno
1
Pitanje 11
11.

Explain how you know that each equation has the same solution as the previous equation.

Obavezno
0
Pitanje 12
12.

With a partner start with

Do the same thing to each side at least three times to create an equation that has the same solution as the starting equation.

Write the equation you ended up with on a slip of paper, and trade equations with your partner.

Obavezno
0
Pitanje 13
13.

See if you can figure out what steps they used to transform into their equation. When you think you know, check with them to see if you are right.

Lesson Synthesis: - (5 min)

Obavezno
1
Pitanje 14
14.

What are some important things to keep in mind when working with negative numbers?

Cool Down: Solve Two More Equations

(5 min)

Obavezno
4
Pitanje 15
15.

Obavezno
4
Pitanje 16
16.

Closure Questions:

  • What is something important when your solving equations?

  • When your multiply/divide two negatives number your get a _____?

  • 2 - 5 = 3 (True or False)

Pitanje 5
5.

-3x + 7 = 1

Pitanje 6
6.

25x + (-11) = -86

Pitanje 9
9.

Pitanje 10
10.