December 7 & 8

Geometry

Bellringer (reteaching)10 minutes

Solve the following equations:

1. 15b - 10 = 50

2. 7x + 3 = 2x + 8

3. -11a = 66

Quiz Review

20 minutes to go over quiz. You will participate in an activity in which they will calculate the frequency of the most missed question. You will use this data to understand what areas as a class we need to improve and re-teach.

Cooperative notes

Students will work in pairs to complete graphic organizer/notes on angle relationships. (30 minutes).

• Lesson 1-4• Use the map of a high

school shown. • a. Name all angles

that have K as a vertex. 8, 6, HKJ, and

JKC • b. Name the sides

of 6. • KJ and KC or KJ and KG• c. What is another

name for AJK? 9, J, and KJA• d. Name a point in

the interior of ECG. • Point F.

Student Parking

Gymnasium

Science Lab

Office

E

D

C

F

GE

K

J

H

4

1

2

35

6

B

A

7

8

910

• Example 3 Measure and Classify Angles

• In the figure, ABD FHG. If mABD = 3x + 6 and

• mFHG = x + 26, find the measures of ABD and FHG.

• Given• Definition of congruent

angles• 3x + 6 = x + 26 Substitution• 3x = x + 20 Subtract 6 from

each side.• 2x = 20 Subtract x from each side.• x = 10 Divide each side by 2.• Use the value of x to find the

measure of one angle.• = 3x + 6Given• = 3(10) + 6 x = 10• = 30 + 6 or 36 Simplify.• The measures of ABD and FHG

are 36.• You can check you solution by

substituting 10 for x in the expression for FHG.

J

B

M

A

D

F

H

G

• Teacher assigned Guided practice (15 minutes)

• Teacher assigned Independent practice (15 minutes)

Homework