Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Euler angles wikipedia , lookup
Golden ratio wikipedia , lookup
History of geometry wikipedia , lookup
Apollonian network wikipedia , lookup
Rational trigonometry wikipedia , lookup
Trigonometric functions wikipedia , lookup
Reuleaux triangle wikipedia , lookup
History of trigonometry wikipedia , lookup
Euclidean geometry wikipedia , lookup
Incircle and excircles of a triangle wikipedia , lookup
Excerpted from: Bridges in Mathematics K-5 The Math Learning Center P.O. Box 12929 Salem, Oregon 97309-0929 1–800–575–8130 Additional resources at: www.mathlearningcenter.org © 2005–2009 Math Learning Center Information Related to the Attached Activity— QTaxon(s): QT-G-624 Quantile measure: 610Q ® The Quantile Framework® for Mathematics, developed by educational measurement organization MetaMetrics®, comprises more than 500 QTaxons (skills and concepts) taught from kindergarten through high school. The Quantile Framework depicts the developmental nature of mathematics and the connections between mathematics content across the strands. By matching a student’s Quantile measure (for example, 650Q) to the Quantile measure of a mathematical skill or concept, you can see if the student is ready to learn that skill, needs to learn supporting concepts first, or has already mastered it. For more information and to use free Quantile resources, visit www.Quantiles.com. MetaMetrics®, Quantile®, Quantile Framework® and the Quantile logo are trademarks of MetaMetrics, Inc., and are registered in the United States and abroad. Set C2 Geometry: Triangles & More Blackline Use anytime after Set C2 Activity 2. Run a class set. name date Set C2 H Independent Worksheet 4 Independent Worksheet More Geoboard Triangles Remember that you can classify and describe triangles in two different ways: • by the size of their angles Right Triangle Acute Triangle acute angle Obtuse Triangle right angle obtuse angle One of the angles is a right angle. One of the angles is obtuse. Isosceles Triangle Scalene Triangle Equilateral Triangle Two sides are the same length. Each side is a All 3 sides are the same length. All 3 angles are acute. • by the length of their sides 1 different length. Follow the instructions above each geoboard to draw some different triangles Hint Build your triangles on a geoboard first. Then copy them onto the paper. a A Right Triangle © The Math Learning Center b An Isosceles Triangle c An Acute Triangle (Continued on back.) Bridges in Mathematics Grade 3 Supplement • C2.27 Set C2 Geometry: Triangles & More Blackline Run a class set. Independent Worksheet 4 More Geoboard Triangles (cont.) d An Obtuse Triangle g A Right Triangle that is also Scalene e h A Scalene Triangle An Acute Triangle that is also Scalene f A Right Triangle that is also Isosceles i A Scalene Triangle that is also Obtuse challenge 2 Dana says it is impossible to draw a right triangle that is also acute. Do you agree with her? Why or why not? Use the geoboards below to test your ideas. C2.28 • Bridges in Mathematics Grade 3 Supplement © The Math Learning Center