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2-27-2006 Math 2
1. Finish measures on handout for scale factor
2. Start on Scale factor/Area sheets
OBJECTIVE: To use the definition of similarity to recognize when figures are similar •To determine the scale factor between similar figures to find the lengths of corresponding sides[1.1.4] •To find a missing measurement in a pair of similar figures[1.1.4] •To use the relationship between scale factor and area to find the area of a figure that is similar to a figure of a known area •To solve problems that involve scaling up and down[1.1.4][1.2.5][1.3.1][1.3.2][5.1.1] ACTIVITIES/ASSESSMENT: Finish measures on handout for scale factor - measure enough sides to utilize proportion 2 sides on first figure, 1 on second. Determine scale factor. Set-up sheet to demonstrate the relationship of scale factor to area. Area and scale factor² worksheets worksheets to reinforce the relationship of the linear scale factor to square area (area * sf² = new area) NOTES: HOMEWORK: SF Area sheets as appropriate
2-28-2006 Math 2
1. HOMEWORK due today: SF Area sheets as appropriate
2. Proportion Drill
3. Pp 59 to 63 Read and Discuss
OBJECTIVE: • To recognize similar figures in the real world • To find a missing measurement in a pair of similar figures [5.1.1] • To apply what has been learned about similar figures to solve real-world problems[1.1.4] • To collect data, analyze it, and draw reasoned conclusions from it[3.3.3] ACTIVITIES/ASSESSMENT: Discussions of similar triangles and indirect measures. NOTES: HOMEWORK: Indirect measure worksheet as assigned.
3-1-2006 Math 2
[Generate your own worksheets (with answers)]
1. HOMEWORK due today: Indirect measure worksheet as assigned.
2. Indirect measure worksheet (shadow)
OBJECTIVE: See 2-28 above, ACTIVITIES/ASSESSMENT: Assess indirect measures using the shadow worksheets. Students will make sketches and insert dimensions. Discuss the units required for meter- and yard- sticks NOTES: Distribute Progress Report 3-2: D/F notice day HOMEWORK: INDRECT MEAS. Worksheet as needed
3-2-2006 Math 2
1. HOMEWORK due today: INDRECT MEAS. Worksheet as needed
2. Progress Report 3-2 returned
3. Pp103-105 Unit Test
OBJECTIVE: See 2-28 above. ACTIVITIES/ASSESSMENT: Pp103-105 Unit Test NOTES: HOMEWORK: Finish Pp103-105 Unit Test if necessary
3-3-2006 Math 2
1. HOMEWORK due today: Finish Pp103-105 Unit Test if necessary
2. Area Worksheets - Free style
OBJECTIVE: GS01 (Properties and Relationships) Identify and use properties and relationships of plane geometry to describe shapes and figures; identify, describe, or draw objects in the surrounding environment in geometric terms (1.3.1, 1.3.2); ME03 (Approximation and Precision) Demonstrate an understanding of how precision is affected by the unit of measurement; know when estimating is appropriate and estimate to obtain reasonable approximations (1.2.4, 1.2.5) ACTIVITIES/ASSESSMENT: Area Worksheets - Free style various plane figures with given formulas. Discuss what happens when a dimension changes. NOTES: Discuss sketch vs drawing. HOMEWORK: Sketch room with accurate dimensions in feet/inches (1/4 inch accuracy)
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