German Lesson 2
Lesson Table

CW: Whole-class work
SW: Seatwork

  
Time Description of Activity Description of Content
00:54 Pre-Lesson Activity Greeting
01:01 CW: Working On Tasks/Situations
(19 min 34 sec)		 "(Determine) Eight to the third power?"
                                      512
01:30 "Second binomial theorem?"
                                      
01:47 "Twelve percent of hundred twenty?"
                                      Fourteen point forty
02:00 "Five factorial?"
                                      120
02:26 "A to the third power times A to the seventh power?"
                                      A to the tenth power
02:45 "One half minus on third?"
                                      One sixths
03:10   (Review)
"What have we done lately?"
                           Student: Equations with two variables (S2-1)
                                   Teacher: Systems of Equations (on Blackboard)
03:50 "What various methods do you know to solve systems of equations?"
                                   Setting them equal (S3-2)
04:04 Give an example.
                                   Student: Two Y plus three X equals five. And two Y plus five X equals thirty seven.
   Teacher: I. x = 3 - 4y              Continue:
                                   Student: II. x = 7 + 3y
05:37 "Which other method do we know?"
                                                   Substituting (S3-3)
05:50 Give an example for that:
                                   Student: I. y = 3 - 4x
                                                  II. x - y = 3x (S3-4)
07:13 "How do we solve this?"
                                      Substitute Y in II.
07:44 "What was the third method?"
                                      Method of addition (S3-5)
08:14 Give an example:
                                      I. 3y + 17x = 1,438
                                      II. -3y + 28x = 17
09:25 "How do we solve this?"
                                      I. + II.

10:00 Solve this problem:


11:50 "What would you suggest?"
Eliminate the parentheses:
                                      
13:41 Find a common denominator:
                                      
18:00 Combining terms:
                                      94y+5-15x=0 -195x + 65 - 32y = 0 (S4-4)
20:35 CW: Setting Up Tasks/Situations
(5 sec)		 Copy this in your notebook.
Think about the next step.
20:40 SW: Working On Tasks/Situations Individually
(5 min 27 sec)		  
26:13 CW: Working On Tasks/Situations
(8 min 39 sec)		 What method do you want to use?
                                   Method of addition:
                                   I. 94y+5-15x=0               | . (-13)
                                   II. -32y+65-195x=0
                                   I'. -1222y-65+195x=0
                             II.+I'. 1254y=0
                                   =>  y = 0
                            y =>I. 5-15x = 0                     | - 5
                                 => -15x = -5                      | : (-15)
                                 =>
33:34   Summarize how one has to proceed with this kind of problems:
                                   First eliminate the parentheses.
                                   Next multiply with the common denominator.
                                   Next find the approach to solve the system of equations.
34:52 CW: Setting Up Tasks/Situations
(27 sec)		 Solve number 12 page 195.

12a) 12b) 12c)
35:19 SW: Working On: Tasks/Situations Individually Who knows what 'coefficient' means?
                                      It means to work together, to combine.
42:39
-43:07		 Post-Lesson Activity Greeting and Clean-up
 
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