Return to Unit List Grade 4 Unit 10: Geometry   Space and Plane Figures Design a Building   Crossword Puzzle   Concentration Lesson 1: 3-Dimensional Figures Lesson 2: 2-Dimensional Figures Lesson 3: Lines, Line Segments, and Rays Lesson 4: Angles Lesson 5: Triangles and Quadrilaterals Lesson 6: Problem Solving: Skill Use a Diagram Lesson 7: Parts of a Circle   Geometry Reshape the States   Crossword Puzzle Lesson 1: Congruent and Similar Lesson 2: Transformations and Symmetry Lesson 3: Problem Solving: Strategy Find a Pattern Lesson 4: Perimeter Lesson 5: Circumference Lesson 6: Algebra: Area Chapter 20 Writing for Math Lesson 7: Algebra: Explore Volume Design a Building