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Hour oneFeedbackReview
ANGLE
Hour twoANGLES and
LINES
Project intro Hour three
Check-insBearing angles
Agenda for today (7/22)
Some themes…River, state-to-state travel, music, sleep
Persistent math issues
Persistent test issues (anxiety, etc.)
Issues with teachers
About you (9:00 class)
Some themes…River, international travel, music
Persistent math issues
Persistent test issues
Issues with geometry
About you (1:00 class)
Can I use an audio recorder?
Line: what is formula for slope?
Line: how do you solve for b? (Is there a formula for b?)
Line: what about slope to the left?
Your day one questions
Plane: treat the scale as the amount between each hash mark (edge of each box)
Why not always use a scale of 1?
What can I do if I get done early?What kind of dog do you have?
More day one questions
How many (line) segments are in a pyramid?
What is parallax?
Line: Is the y-intercept a point?
Are “axes” different from “axis”?
More day one questions
Do you actually know the answers to the problem sets?
Can we use our notes on the tests?
Will we do proofs? (“please no”)
More day one questions
“I work better listening to music”
“We had trouble using the order of operations” (exponents mentioned by another)
How old are you?
More day one questions
Why do you teach math?
Can you determine how big the sun is using a coordinate plane?
What’s the best way to remember all this stuff?
More day one questions
What have we covered, so far?
Plane Point
Line
Angle
Flat (2-D) Shapes
Solids (3-D)
Having trouble with slope?Try using the slope formula:
(Complete the FIRST PROBLEM SET)
Line (continued)
Is made by two lines, rays, or segments that meet (at the vertex)
Has size (measured in degrees)Is described using three points
New Topic: Angle
Some exact sizes are named:Right (90o)
Straight (180o)
Angle (continued)
'See any right angles?
Some ranges of sizes are named:Acute (between 0o and 90o)
Obtuse (between 90o and 180o)
Angle (continued)
Some combinations are named:Adjacent (two that share a ray)
Opposite (two that are across an intersection of lines)
Angle (continued)
More combinations are named:Complementary (add up to 90o)
Supplementary (add up to 180o)
Angle (continued)
Measure angles on paper using a protractor
Identify individual angles as right, straight, acute, or obtuse
Identify pairs of angles as adjacent, opposite, complementary, or supplementary
(Complete the SECOND PROBLEM SET)
Angle TASKS
Some combinations are named:Perpendicular (meet at 90o)
Parallel (never meet, have same slope)
Topic: Angles and Lines
A line that crosses or bridges two parallel lines is called a transversal
Angles and Lines
'See any parallel lines?
Are these lines parallel?
When a transversal crosses parallel lines, there are many pairs of equal angles
Angles and Lines
Corresponding angles
Angles and Lines
Alternate interior angles
Angles and Lines
Alternate exterior angles
Angles and Lines
Identify perpendicular and parallel lines
Find missing angles’ sizes where parallel lines are crossed by a transversal
(Complete the THIRD PROBLEM SET)
Angles and LinesTASKS
Complete the FOURTH PROBLEM SET
Complete the FIFTH PROBLEM SET
Show me when you’re done and I will check today’s assignment
Fill-in your check-in sheet for today
For the rest of the time…
Activity: Bearing anglesN38oW = “north 38 degrees west” N
S
EW
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