Monthly Archives: January 2017

1/31/17- Special Right Triangles

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                      Answers: 1.a: 6 because 3•6=18. The important consideration here, is that we just “know” that 3•6 =18, but we should think about how, or why, 6 is the answer. Really, what … Continue reading

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1/30/17- Review of Geometric Mean and Triangle Proportionality

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Notes for the Warm-Up: It was given (before everything was written on!) that BE and CD were parallel, which gave us congruent corresponding angles (<ABE, and <C) marked with 1 arc mark each. We also note that <A is the … Continue reading

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1/27/17- Sub-Day: Radicals and Geometric Mean

Warm-Up (Give students 5 minutes, then show answers. Note: √ will mean “square root”. On this website, I can’t get the top part of the square root sign. So square root of 16 will look like this: √16) Solve each: … Continue reading

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1/25/17- EA3.1 and Geometric Mean

First, students checked their answers to homework assignments for the first 30 minutes. Students then had 30 minutes to complete Embedded Assessment 1 in Unit 3 (p.273-274). For the last 30 minutes: Geometric Mean Ex.) Find the number whose square … Continue reading

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Homework answers

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1/24/17- Review

After the Warm-Up, key problems were gone over on the Blue and Green worksheets, and students then had the rest of the period to finish up old assignments, get extra help, get HW checked, and complete the following review problems … Continue reading

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1/23/17- Triangle Proportionality Theorem

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We then completed p. 265-267: 1-6. The following worksheet was passed out for review on Dilations material: Extra Dilation Practice

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1/20/17- Triangle Similarity Criteria

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We then worked on this worksheet, which will be for homework: Triangle Similarity

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1/18/17- Triangle Similarity Criteria Activity

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Key idea we talked about after the warm-up up was the similarities and differences between Similarity and Congruence; specifically: Congruent shapes have congruent angles and congruent sides. Similar shapes have congruent angles but proportional sides. Although the definition of each talks about all corresponding parts, thinking back … Continue reading

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1/17/17- Dilations on the Coordinate Plane

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Warm-Up         Answers: 1.) To translate a point, left and right affect the x-values, up and down affect the y-values. Here, 3 units left means subtract 3 from the x-value, and 5 units up means add 5 … Continue reading

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