Course: 7 th Grade Math DETAIL LESSON PLAN Wednesday, February 22 / Thursday, February 23 Student Objective (Obj. 3b) TSW identify three dimensional figures from nets. Lesson 8-9 Three-Dimensional Figures Textbook Pages: 414-418 Extra Resources Geometric solids. Homework Test next class. Complete and review your study guide. Last Night s Homework 3D Worksheet (10 problems) Bellwork 9 weeks study guide problem numbers: - Prior Knowledge Last class, we learned to identify 2D and 3D figures. Anticipatory Set Today, we will build upon that knowledge of 3D figures and learn about something called Nets. Show PowerPoint What in the world are nets? Teacher Input Review bellwork Review homework Show PowerPoint What in the World are Nets? to lead into today s lesson on nets. Pass out student notes Use the geometric solids to illustrate what each net looks like as a 2D figure vs a 3D figure. Have students work you-try problems (independently). Classwork: Complete study guide (math to music) Assessment Observation and questioning. Closure 1) What is a net? 2-D pattern that you can form into a 3-D figure. 2) Show examples of nets and have students name the 3D solid.
Student Notes Lesson 8-9 Nets Textbook Pages 414 419 A Net is a two-dimensional pattern that you can fold to form a 3-dimensional shape. Example: Figure 1 and Figure 2 below show two possible nets for a cube. Figure 1 Figure 2 You try: Name the three dimensional figure from each net.
Answer Key
Independent Practice
Independent Practice Answer Key
Name: Answer Key Period: Date: 3D Figures / Nets Part 1 2 Dimensional Figures 1) How many sides does each of the following figures have? 4 Quadrilateral _10 Decagon 8 Octagon 6 Hexagon _ 9 Nonagon 7 Heptagon 5 Pentagon 3 Triangle Part 2 3 Dimensional Figures 2) Use the word bank to match the following 3-D figures. A) Triangular Prism B) Pentagonal Pryamid C) Hexagonal Prism D) Cylinder E) Cone D B C E A Cylinder Pentagonal Pyramid Hexagonal Prism Cone Triangular Prism 3) Identify the number of faces, verticies, and edges of the following figure. Faces: 4 Vertices: 4 Edges: 6 4) Which 3-D solid figure exactly 6 vertices? (Hint: Don t forget pyramids have a vertex on the top!) Pentagonal pyramid Hexagonal pyramid
5) What properties describe this 3-D shape? 9 Faces 14 Vertices 21 Edges What is the shape of the base? Heptagon What is the name of the shape? Heptagonal Prism 6) What properties describe this 3-D shape? 6 Faces 6 Vertices 10 Edges What is the shape of the base? Pentagon What is the name of the shape? Pentagonal Pyramid Part 3 Nets 7) Use the word bank to match the following nets to their 3-D figures. A) Triangular Prism B) Pentagonal Prism C) Cylinder D) Triangular Pyramid E) Cone A E C D B Triangular Prism Cone Cylinder Triangular Pyramid Pentagonal Prism 8) Which solid does the following net represent? A. B. C. D.
Name: Period: Date: 3D Figures / Nets Part 1 2 Dimensional Figures 1) How many sides does each of the following figures have? Quadrilateral Decagon Octagon Hexagon Nonagon Heptagon Pentagon Triangle Part 2 3 Dimensional Figures 2) Use the word bank to match the following 3-D figures. A) Triangular Prism B) Pentagonal Pryamid C) Hexagonal Prism D) Cylinder E) Cone 3) Identify the number of faces, verticies, and edges of the following figure. Faces: Vertices: Edges: 4) Which 3-D solid figure exactly 6 vertices? (Hint: Don t forget pyramids have a vertex on the top!) Pentagonal Pyramid or Hexagonal Pyramid
5) What properties describe this 3-D shape? Faces Vertices Edges What is the shape of the base? What is the name of the shape? 6) What properties describe this 3-D shape? Faces Vertices Edges What is the shape of the base? What is the name of the shape? Part 3 Nets 7) Use the word bank to match the following nets to their 3-D figures. A) Triangular Prism B) Pentagonal Prism C) Cylinder D) Triangular Pyramid E) Cone 8) Which solid does the following net represent? A. B. C. D.