0422 Solving for Unknown Angles

0422 Solving for Unknown Angles

OPENING

Set timer for 7 minutes

Open Ended

Define vertical angle in your own words.

Open Ended

Define supplementary angle in your own words.

Open Ended

Define complementary angle in your own words.

Open Ended

Define adjacent angle in your own words.

ENGAGEMENT

Set timer for 7 minutes

Open Ended

Is this equation true or false. Explain your reasoning.

CD + BC = BD

Open Ended

Is this equation true or false. Explain your reasoning.

AB + BD = CD + AD

Open Ended

Is this equation true or false. Explain your reasoning.

AC - AB = AB

Open Ended

Is this equation true or false. Explain your reasoning.

BD - CD = AC - AB

EXPLORATION:

Set timer for 15 minutes

Multiple Choice

Match the figure to an equation that represents it and explain why they are a match.

• g + h = 180

• g = h

• 2h + g = 90

• g + h + 48 = 180

• g + h + 35 = 180

Multiple Choice

Match the figure to an equation that represents it and explain why they are a match.

• g + h = 180

• g = h

• 2h + g = 90

• g + h + 48 = 180

• g + h + 35 = 180

Multiple Choice

Match the figure to an equation that represents it and explain why they are a match.

• g + h = 180

• g = h

• 2h + g = 90

• g + h + 48 = 180

• g + h + 35 = 180

Multiple Choice

Match the figure to an equation that represents it and explain why they are a match.

• g + h = 180

• g = h

• 2h + g = 90

• g + h + 48 = 180

• g + h + 35 = 180

Multiple Choice

Match the figure to an equation that represents it and explain why they are a match.

• g + h = 180

• g = h

• 2h + g = 90

• g + h + 48 = 180

• g + h + 35 = 180

Fill in the Blanks

Fill in the Blanks

ELABORATION:

Open Mobius Math

U4.3.1 - Complementary and Supplementary Angles pg 3

Set timer for 15 minutes

Open Mobius Math

U4.3.1 - Complementary and Supplementary Angles pg 3

EVALUATION

INDEPENDENT PRACTICE

30 minutes