Took assessment on geometric constructions and review topics. Derived midpoint formula for coordinate plane, dealing with the concept of averages. Introduced the Pythagorean Theorem and showed a demonstration (not proof) of its meaning.
Homework:
Watch and take notes on this video: direct link
Passed back assessments. Worked on example using the distance and midpoint formulas, then investigated their applications in real world contexts. Looked at history of Pythagorean Theorem and worked the classic leaning ladder problem. Then saw how Pythagorean Theorem actually makes distance problems easier. Finally. looked at slopes of parallel and perpendicular lines and made observations about their numerical and algebraic properties.
Notes from board
Homework:
p. 59 #4-6 [GPE-B7a]
p. 97: #7-10 [GPE-B5a]
Resources
distance formula examples: link
perimeter using distance formula: link
parallel and perpendicular lines' slopes: link
more on perpendicular and parallel lines and slope: link
(Mr Mohyuddin was out Friday) Warm up on distance formula and Pythagorean Theorem. Worked on applying slopes of parallel and perpendicular lines in the computer lab using the modules listed here: http://mgeo.weebly.com/92
Homework:
p. 97 #11-14 [GPE-B5a]
Resources
converting from standard form to slope-intercept form: LINK
slope from a graph: LINK
parallel and perpendicular slopes: LINK