Course: 7 th Grade Math DETAIL LESSON PLAN Thursday, February 16 / Tuesday, February 21 Student Objective (Obj. 3a) TSW… classify and compare 2D and 3D shapes using their properties. Lesson 8-8 Three-Dimensional Figures Textbook Pages: 410-413 Extra Resources Geometric solids. Thinking Maps: Circle Map – Polygons Tree Map – 2D Shapes Brace Map – Parts of a 3D Figure Tree Map – 3D Figures Homework 3D Worksheet (10 problems) Last Night’s Homework None Bellwork Geometry Review Handout. Prior Knowledge Review answer to bellwork. Last week, we learned how to find the perimeter and area of 2D figures such as triangles, quadrilaterals, and circles using formulas. Anticipatory Set Today, we will learn how to identify 3-Demensional figures. What are 3D figures and why do we need to learn about them? Show PowerPoint 3D Objects in Ordinary Places Teacher Input Pass out student notes. Identify and classify 2D figures. Give students “tricks” to remember each shape. Give students 60 seconds to complete you-try matching (independently). Explain the parts of a 3D figure (face, edge, and vertex). Illustrate using the geometric cube and cylinder. Show examples of each type of 3D shape. Hold up each geometric solid to go along with the slide. Indentify the 3D shape you-try (independently). Pass out highlighters. Demonstrate how to find the number of faces, edges, and vertices on you-try problem #1. Have students work the remainder of the sheet. (independently). Classwork: You-Try problems. (Independently) Extra Practice: Students may begin their homework. Assessment Observation and questioning. Closure – Beach Ball Math 1) How sides does each have; what is our trick for remembering? Triangle: 3, Quadrilateral: 4, Pentagon: 5, Hexagon: 6, Heptagon: 7, Octagon: 8, Nonagon: 9, Decagon: 10 2) What are the flat surfaces of a 3D shape called? Faces 3) Where the faces meet on a 3D figure? Edges 4) The pointy corners (or where the edges meet)? Vertex 5) Hold up shapes and have students identify.
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Course: 7th Grade Math DETAIL LESSON PLAN Thursday, February 16 / Tuesday, February 21 Student Objective (Obj. 3a) TSW… classify and compare 2D and 3D shapes using their properties. Lesson 8-8 Three-Dimensional Figures Textbook Pages: 410-413
Extra Resources Geometric solids. Thinking Maps: Circle Map – Polygons Tree Map – 2D Shapes Brace Map – Parts of a 3D Figure Tree Map – 3D Figures
Homework 3D Worksheet (10 problems) Last Night’s Homework None
Bellwork Geometry Review Handout.
Prior Knowledge
Review answer to bellwork.
Last week, we learned how to find the perimeter and area of 2D figures such as triangles, quadrilaterals, and circles using formulas.
Anticipatory Set
Today, we will learn how to identify 3-Demensional figures.
What are 3D figures and why do we need to learn about them?
Show PowerPoint 3D Objects in Ordinary Places
Teacher Input
Pass out student notes.
Identify and classify 2D figures. Give students “tricks” to remember each shape. Give students 60 seconds to complete you-try matching (independently).
Explain the parts of a 3D figure (face, edge, and vertex). Illustrate using the geometric cube and cylinder.
Show examples of each type of 3D shape. Hold up each geometric solid to go along with the slide. Indentify the 3D shape you-try (independently).
Pass out highlighters. Demonstrate how to find the number of faces, edges, and vertices on you-try problem #1. Have students work the remainder of the sheet. (independently).
Classwork: You-Try problems. (Independently) Extra Practice: Students may begin their homework.
Assessment Observation and questioning.
Closure – Beach Ball Math 1) How sides does each have; what is our trick for remembering? Triangle: 3, Quadrilateral: 4, Pentagon: 5, Hexagon: 6, Heptagon: 7, Octagon: 8, Nonagon: 9, Decagon: 10 2) What are the flat surfaces of a 3D shape called? Faces 3) Where the faces meet on a 3D figure? Edges 4) The pointy corners (or where the edges meet)? Vertex 5) Hold up shapes and have students identify.
Geometry Review Bellwork
Pythagorean Theorem
1) Find the missing hypotnuse on this Right Triangle. Answer: _______
2.5m Z Step 1:
Step 2:
6m
Step 3:
2) Find the missing leg of the following Right triangle. Answer: _______
30 ft Step 1: a
Step 2:
24 ft
Step 3:
3) Will the measurements of 8, 9, 10 form a right triangle? Answer: _______
Circumference
4) Find the circumference of the following figure. Answer: _______
5m
Area
5) Find the area of this shape. Answer: Answer: _______
6) A triangular room has a base of 20 ft and a height of 13 ft. What is the area?
A. 260 B. 17 C. 130 D. 33
21 in
9 in
6 in
Answer Key Geometry Review Bellwork
Pythagorean Theorem
1) Find the missing hypotnuse on this Right Triangle. Answer: 6.5 m
2.5m Z Step 1:
Step 2:
6m
Step 3:
2) Find the missing leg of the following Right triangle. Answer: 18 ft
30 ft Step 1: a
Step 2:
24 ft
Step 3:
3) Will the measurements of 8, 9, 10 form a right triangle? Answer: No
Circumference
4) Find the circumference of the following figure. Answer: 31.4 cm
5m
Area
5) Find the area of this shape. Answer: Answer: 90
6) A triangular room has a base of 20 ft and a height of 13 ft. What is the area?
____ Quadrilateral A. 3 sides ____ Octagon B. 4 sides ____ Decagon C. 5 sides ____ Hexagon D. 6 sides ____ Triangle E. 7 sides ____ Heptagon F. 8 sides ____ Pentagon G. 9 sides ____ Nonagon H. 10 sides