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- [ CMP - Stretching and Shrinking? ]
compare corresponds, corresponding image ratio scale, scale factor similar angle angle measure area congruent coordinate graphing coordinates diameter dimensions line plot line segment parallel perimeter perpendicular vertex midpoint transform, transforming (slide, flip, turn = translate, reflect, rotate)
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[[Make-up Credit information]
1-17-2006 Math 2
1. HOMEWORK Due Today:
2. Fraction Operations Drill Cumulative
3. Possible Retake of the WDYE test.
4. Alternate Start to Stretching and Shrinking
OBJECTIVE: •To make enlargements of simple figures with a rubber band stretcher (canceled)•To describe in an intuitive way what the word similar means [1.3.1 Understand the concept of similarity. * Identify corresponding sides and angles of two similar figures.* Determine and justify if two figures are similar using the definition of similarity. [CU, RL]* Differentiate between similar and congruent figures, either geometric figures or real-world objects, and justify the conclusion. [RL, MC]* Explain how a scale drawing is an example of similarity. [CU]][1.1.4] •To consider relationships between lengths and between angles in simple, similar figures [1.3.4][1.3.2] ACTIVITIES/ASSESSMENT: If Not redoing the WDYE Test from last week, start on the replacement for investigation 1, Dilation drawings. Enlargements by dilation and projection (on graph paper). Also - provide information on the pantograph. Discuss the 'rubber band stretcher' and go to page 7 for discussion of corresponding sides and angles. List terms. NOTES: HOMEWORK: complete dilation
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1-18-2006 Math 2
1. HOMEWORK Due Today: Complete dilation
2. Fraction Operations Drill Cumulative
3. Continue discussion from Page 7 and ACE questions
OBJECTIVE: See 1-17 above. ACTIVITIES/ASSESSMENT: Continue discussion from Page 7 and ACE questions, Specifically the definition and use of corresponding sides and corresponding congruent angles. NOTES: Demo with transparencies by investigation 2. HOMEWORK: Page 11 #6 (a=pi*r²)
1-19-2006 Math 2
1. HOMEWORK Due Today: Page 11 #6 (a=pi*r²)
2. Fraction Operations Drill Cumulative
3. P14ff Investigation 2. 'Similar Figures'
OBJECTIVE: •To review locating points in a coordinate system •To graph figures using algebraic rules •To predict how figures on a coordinate system are affected by a given rule •To learn that corresponding angles of similar figures are equal and that corresponding sides grow by the same factor[1.3.1]•To compare lengths and angles in similar and nonsimilar figures informally •To experiment with examples and counterexamples of similar shapes [1.3.4] Understand and apply combinations of translations (slides) and reflections (flips) to two-dimensional figures.[1.3.2][1.1.4] ACTIVITIES/ASSESSMENT: P14ff Investigation 2. 'Similar Figures.' Introduce the drawing of the 'Wump' family and the use of the 'rules' governing their plots. Read the introduction to page 14. Need to define similarity and congruence. NOTES: Possible use of powerpoint on F: HOMEWORK: Page 24 #11 (Req. 1cm grid)
1-20-2006 Math 2
1. HOMEWORK Due Today: Page 24 #11 (Req. 1cm grid
2. Fraction Operations Drill Cumulative
3. Page 16 Problem 2.1 including C
OBJECTIVE: See 1-19 above. ACTIVITIES/ASSESSMENT: Finish plotting the Wump Family and answer question C. NOTES: HOMEWORK: Page 22 1&2
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