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12-5-2005 Math 2a
1. HOMEWORK: Pages 90-91 Check Up Page 1
2. Page 92 CheckUp page 2
3. Page 11 #6 due
4. Introduce Transformations [1.3.4]
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 non similar 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: Introduce transformations w/o the use of rules (1st quadrant) to include translate, reflect and rotate. Also need to add symmetry and rotational symmetry. NOTES: Mira/tessellations HOMEWORK: Page 23ff #7, 9, 11
12-6-2005 Math 2a
1. HOMEWORK: Page 23ff #7, 9, 11
2. Space Bunny Introduction.
OBJECTIVE: See 12-5 above. ACTIVITIES/ASSESSMENT: Review similarity, congruence and corresponding parts. Continue working on transformations Review the proportion equation and how it relates to similarity and scale factor. NOTES: HOMEWORK: Page 33 2-5
12-7-2005 Math 2a
1. HOMEWORK: Page 33 2-5
2. Harvey Plotter and the Space Bunnies
3. Page 29ff problem 3.2
4. Quiz: Explain similarity
OBJECTIVE: •To recognize similar figures and to be able to tell why they are similar [1.3.3][1.3.1] •To understand that any two similar figures are related by a scale factor, which is the ratio of their corresponding sizes •To build a larger, similar shape from copies of a basic shape (a rep-tile) •To find rep-tiles by dividing a large shape into smaller, similar shapes •To understand that the sides and perimeters of similar figures grow by a scale factor and that the areas grow by the square of the scale factor[1.1.4][1.2.5] •To find a missing measurement in a pair of similar figures •To recognize that triangles with equal corresponding angles are similar[1.3.1][1.3.2][5.1.1]ACTIVITIES/ASSESSMENT: Warm up quiz - define/explain the math concept of similarity. Review scale factor with Rep-Tiles. Emphasize the relationship between scale factor and multiple dimensions. NOTES: HOMEWORK: Page 36 11-14
12-8-2005 Math 2a
1. HOMEWORK: Page 36 11-14
2. Page 32 Problem 3.3
OBJECTIVE: See 12-7- above. ACTIVITIES/ASSESSMENT: Warm up - Define congruent. Create rep-tiles. NOTES: HOMEWORK: Page 37 #15
12-9-2005 Math 2a
1. HOMEWORK: Page 37 #15
2. Page 40 1-4 Rough Draft
OBJECTIVE: See 12-7 above ACTIVITIES/ASSESSMENT: Start discussion about scale and scale factor. Provide directions and symbols for a room sketch exercise. Review linear measurement in the standard and metric systems. NOTES: HOMEWORK: Sketch and measure the bedroom to the nearest 1/4 inch. Include door widths and window lxw(labeled. Must be accurate measures - no graph paper sketches.
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