1 On Fire 3: Creating A Firewise Defensible Space Resource Type: Lessons Discipline: Mathematics Grades: Grades 7–8 Professional Commentary: Wildfires and wildfire environments are often in the news and suggest interesting applications of mathematics. This third lesson (in a unit of five) focuses on the idea of defensible space.... Resource Type: Lessons Discipline: Mathematics Grades: Grades 8–12 Professional Commentary: The materials at this site explain the design and construction of a truss bridge, the Brent Spence Bridge, in Cincinnati, Ohio. The bridge is divided into 8 different sections, and students are responsible for computing lengths and angles in one section of the bridge.... 3 Paper Pool : Analyzing Numeric and Geometric Patterns Resource Type: Lessons Discipline: Mathematics Grades: Grade 8 Professional Commentary: Paper Pool is played with an imaginary ball being hit from the lower left-hand corner of a rectangular grid (pool table) at a 45&#176 angle. A ball hit at this angle will bounce off the side rails of the table at a 45&#176 angle and will traverse the diagonals of the squares in the grid.... 4 Measuring Up : Lesson 6 - In Your Shadow Resource Type: Lessons Discipline: Mathematics Grades: Grades 6–7 Professional Commentary: On a sunny day, students measure their height and the length of their shadow and use proportional reasoning to find the heights of various tall objects by measuring the lengths of the shadows of the objects. A recording sheet, questions for students, assessment options, and ideas for teacher reflection are included.... 5 ODE Assessment Item, Grade 7: Ratio of Circumferences Resource Type: Assessments Discipline: Mathematics Grades: Grade 7 Professional Commentary: Students must find the ratio of the circumferences of two circles. This short-answer question is a sample item used in the 2006 Ohio Grade 7 Achievement Test (see Overview of Ohio's Assessment System). The URL link (above) takes the user directly to the OAT item (PDF), with access to performance data, complexity level of the item, a complete solution of the... 6 ODE Assessment Item, Grade 7: Using Scale Factors Resource Type: Assessments Discipline: Mathematics Grades: Grade 7 Professional Commentary: Students use a scale factor with an Ohio map. This multiple-choice question is a sample item used in the 2008 Ohio Grade 7 Achievement Test (see Overview of Ohio's Assessment System). The URL link (above) takes the user directly to the OAT item (PDF), with access to performance data, complexity level of the item, and discussion of incorrect responses.... 7 ODE Assessment Item, Grade 7: Identify Scale Factor Resource Type: Assessments Discipline: Mathematics Grades: Grade 7 Professional Commentary: Students must identify the scale factor used in a diagram. This multiple-choice question is a sample item used in the 2007 Ohio Grade 7 Achievement Test (see Overview of Ohio's Assessment System). The URL link (above) takes the user directly to the OAT item (PDF), with access to performance data, complexity level of the item, and discussion of incorrect... 8 Fit By Design or Design To Fit: Mechanical Drafter Designer Resource Type: Lessons Discipline: Mathematics Grades: Grades 8–12 Professional Commentary: Students use a carpenter's square and protractor to measure the sides and angles of several right triangles. To confirm their measurements, they then compute the size of selected sides and angles using (a) the Pythagorean Theorem and (b) trigonometric ratios.... Resource Type: Content Supports -- Activities and rich problems Discipline: Mathematics Grades: Grades 5–8 Professional Commentary: Students use scale factors to make a map of a small geographical feature. This activity can be followed by Finding Areas Using Maps.... Resource Type: Content Supports -- Activities and rich problems Discipline: Mathematics Grades: Grades 7–11 Professional Commentary: What would be a reasonable definition of similarity? What are sufficient conditions that two triangles be similar?... |