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Maui Community College Course Outline 1. Alpha and Number: Math 35 Course Title: Geometry Number of Credits: 3 Date of Course Outline: March 22, 2004 2. Course Description: Studies Euclidean space including the topics of parallelism, congruence, deductive reasoning, similarity, circles and measurement. 3. Contact Hours/Type: 3 Hour/Lecture 4. Prerequisites: Math 25 with at least a C or Placement at Math 27 and English 22 with at least a C or placement at English 100, or consent. Corequisites: Recommended Preparation: At least 11th grade reading skills Approved by: ___________________________ __ Date: _________________ Math 35 – Course Outline – March 22, 2004 page 2 5. General Course Objectives: Prepares student for sequence of math courses which lead to calculus. Teaches basic geometric terms, symbols of geometry, drawing diagrams, charts and figures, how to interpret and write simple proofs, and applications of basic definitions, postulates and theorems. 6. Specific Course Competencies: Upon the successful completion of this course the student will be able to: a. Understand the terms point, line, and plane and draw representations of them b. Use undefined terms to define some basic terms in geometry c. Use symbols for lines, segments, rays, and distances; find distances d. Name angles and their measures e. Use properties from algebra and the first geometric postulates in two-column proofs f. Know various kinds of reasons used in proofs g. Apply the definitions of complementary, supplementary, and vertical angles h. Apply the Midpoint Theorem, the Angle Bisector Theorem, and the theorem about vertical angles i. State and apply the theorems about perpendicular lines, supplementary angles, and complementary angles j. Recognize the information conveyed by a diagram k. Plan and write two-column proofs l. Understand the relationships described in the postulates and theorems relating points, lines, and planes m. Distinguish between intersecting lines, parallel lines, and skew lines n. State and apply the theorem about the intersection of two parallel planes by a third plane o. Identify the angles formed when two lines are cut by a transversal p. State and apply the postulates and theorems about parallel lines Math 35 – Course Outline – March 22, 2004 page 3 q. State and apply the theorems about a parallel and a perpendicular to a given line through a point outside the line r. Classify triangles according to sides and to angles s. State and apply the theorem and the corollaries about the sum of the measures of the angles of a triangle t. State and apply the theorem about the measure of an exterior angle of a triangle u. Recognize and name convex polygons and regular polygons v. Find the measures of interior angles and exterior angles of convex polygons w. Identify the corresponding parts of congruent figures x. Use the SSS Postulate, the SAS Postulate, and the ASA Postulate to prove two triangles congruent y. Deduce information about segments or angles by first proving that two triangles are congruent z. Apply the theorems and corollaries about isosceles triangles aa. Use the AAS Theorem to prove two triangles congruent bb. Use the HL Theorem to prove two right triangles congruent cc. Prove that two overlapping triangles are congruent dd. Apply the definitions of the median and the altitude of a triangle and the perpendicular bisector of a segment ee. State and apply the theorem about a point on the perpendicular bisector of a segment, and the converse ff. Apply the definitions of a parallelogram and a trapezoid gg. State and apply the theorems about properties of a parallelogram hh. Prove that certain quadrilaterals are parallelograms ii. Identify the special properties of a rectangle, a rhombus, and a square jj. State and apply the theorems about the median of a trapezoid and the segment that joins the midpoints of two sides of a triangle Math 35 – Course Outline – March 22, 2004 page 4 kk. Express a ratio in simplest form ll. Solve for an unknown term in a given proportion mm. Express a given proportion in an equivalent form nn. State and apply the properties of similar polygons oo. Use the AA Similarity Postulate, the SAS Similarity Theorem, and the SSS Similarity Theorem to prove that two triangles are similar pp. Deduce information about segments or angles by first proving that two triangles are similar qq. Apply the Triangle Proportionality Theorem and its corollary rr. State and apply the Triangle Angle-Bisector Theorem ss. Determine the geometric mean between two numbers tt. State and apply the relationships that exist when the altitude is drawn to the hypotenuse of a right triangle uu. State and apply the Pythagorean Theorem vv. State and apply the converse of the Pythagorean Theorem and related theorems about obtuse and acute triangles ww. Determine the lengths of two sides of a 45°, 45°, 90° triangle or a 30°, 60°, 90° triangle when the length of the third side is known xx. Define a circle, a sphere, and terms related to them yy. Recognize circumscribed and inscribed polygons and circles zz. Apply theorems that relate tangents and radii aaa. Define and apply properties of arcs and central angles bbb. Apply theorems about the chords of a circle ccc. Solve problems and prove statements involving inscribed angles ddd. Solve problems and prove statements involving angles formed by chords, secants, and tangents Math 35 – Course Outline – March 22, 2004 page 5 eee. Solve problems involving lengths of chords, secant segments, and tangent segments fff. Define the area of a polygon ggg. State the area postulates hhh. State and use the formulas for the areas of rectangles, parallelograms, triangles, and trapezoids iii. State how the area and perimeter formulas for regular polygons relate to the area and circumference formulas for circles jjj. Compute the circumferences and areas of circles kkk. Compute arc lengths and the areas of sectors of a circle lll. Apply the relationships between scale factors, perimeters, and areas of similar figures mmm. Identify the parts of prisms, pyramids, cylinders, and cones nnn. Find the lateral area, total area, and volume of a right prism or regular pyramid ooo. Find the lateral area, total area, and volume of a right cylinder or cone ppp. Find the area and the volume of a sphere qqq. State and apply the properties of similar solids 7. Recommended course content and approximate time spent Linked to #6. Student Learning Outcomes. A. Points, lines, planes, and Angles - 3 weeks a) Undefined terms and basic definitions i) Points, lines, and planes (6a, 6b) ii) Segments, Rays, and Distance (6b, 6c) iii) Angles (6d) b) Introduction to Proof i) Properties from Algebra (6e) ii) Proving theorems (6f, 6h) iii) Special Pairs of Angles (6g, 6h, 6i) c) More about Proof i) Perpendicular lines (6i) ii) Planning a Proof (6j, 6k) iii) Postulates Relating Points, Lines, and Planes (6l) Math 35 – Course Outline – March 22, 2004 page 6 B. Parallel Lines and Planes - 2 weeks a) When lines and planes are parallel i) Definitions (6m, 6n, 6o) ii) Properties of Parallel lines (6p, 6q) iii) Proving lines parallel (6p) b) Applying parallel lines to polygons i) Angles of a triangle (6r, 6s, 6t) ii) Angles of a polygon (6u, 6v) C. Congruent Triangles - 2 weeks a) Corresponding Parts in a Congruence i) Congruent figures (6w) ii) Some ways to prove triangles congruent (6x) iii) Using congruent triangles (6y) b) Some theorems based on congruent triangles i) The isosceles triangle theorems (6z) ii) Other methods of proving triangles congruent (6aa, 6bb, 6cc) c) More about proof in geometry i) Medians, Altitudes, and perpendicular bisectors (6dd, 6ee) D. Using Congruent Triangles - 1 week a) Parallelograms and Trapezoids i) Properties of Parallelograms (6ff, 6gg)) ii) Ways to prove that quadrilaterals are parallelograms (6hh) iii) Special parallelograms (6ii) iv) Medians of Trapezoids and the segment joining the midpoints of two sides of a triangle (6jj) E. Similar Polygons - 1 week a) Ratio, proportion, and similarity i) Ratio and proportion (6kk) ii) Properties of proportions (6ll, 6mm) iii) Similar polygons (6nn) b) Working with Similar Triangles i) A postulate for similar triangles (6oo, 6pp) ii) Theorems for similar triangles (6oo, 6pp) iii) Proportional lengths (6qq, 6rr) F. Right Triangles - 1 week a) The Pythagorean Theorem i) Geometric means (6ss, 6tt) ii) The Pythagorean Theorem (6uu) b) Right triangles i) The converse of the Pythagorean Theorem (6vv) ii) Special Right Triangles (6ww) Math 35 – Course Outline – March 22, 2004 page 7 G. Circles - 2 weeks a) Tangents, Arcs, and chords i) Basic terms (6xx, 6yy) ii) Tangents (6zz) iii) Arcs and central angles (6aaa) iv) Arcs and chords (6bbb) b) Angles and segments i) Inscribed angles (6ccc) ii) Other Angles (6ddd) iii) Circles and lengths of segments (6eee) H. Areas of plane figures - 1 1/2 weeks a) Areas of polygons i) Areas of rectangles (6fff, 6ggg, 6hhh) ii) Areas of parallelograms and triangles (6hhh) iii) Areas of trapezoids (6hhh) b) Circles and Similar Figures i) Circumference and area of a circle (6iii, 6jjj) ii) Areas of sectors and arc lengths (6kkk) iii) Areas of similar figures (6lll) I. Areas and Volumes of Solids - 1 1/2 weeks a) Important Solids i) Prisms (6mmm, 6nnn) ii) Pyramids (6mmm, 6nnn) iii) Cylinders and cones (6ooo) b) Areas and volumes of similar solids (6ppp, 6qqq) 8. Recommended course requirements: Regularly assigned homework and in-class assignments, regular quizzes, unit exams, and a final exam. 9. Text and materials: An appropriate text(s) and materials will be chosen at the time the course is to be offered from those currently available in the field. Examples include: Geometry by Jurgensen, Ray C., Brown, Richard G., and Jurgensen, John W.; Houghton Mifflin Company; Boston, Mass., 1988 10. Evaluation and grading: A student's grade in the course is determined by computing an average of the semester's course work which would include quizzes (40 –50%) , unit exams (30 – 40%), and a final exam (10 – 30%) . It is not appropriate to evaluate a student’s competency in a mathematics course by using only a mid-term and a final exam. The homework may be included in the final grade (0% - 5%) Math 35 – Course Outline – March 22, 2004 page 8 In the math department, grades are usually assigned according to the following scale: A: 90% - 100% B: 80% - 89% C: 70% - 79% D: 60% - 69% N or F: 0% - 59% A student may select the option to receive a “credit/no credit” for the course instead of a letter grade. If he/she wishes to select this option, he/she must inform the instructor. Some flexibility is given to instructors in these matters. Each instructor will clearly inform students on his/her syllabus what the forthcoming course work will entail and how it will be weighted and graded respectively. 11. Methods of Instruction: This course is usually taught in an individualized study format in a math lab. Students are given instructor-prepared handouts detailing sections to read and assignments to do, along with instructions on when to take quizzes and exams. Lots of problems are assigned for each topic with each student checking his/her own work. Students work for short period of time one-onone with an instructor or tutor. The student would be expected to learn more on his/her own by reading the textbook. Frequent quizzes and/or exams are used to monitor and inform students of their progress.