Making Rectangles
http://illuminations.nctm.org/LessonDetail.aspx?ID=L160
A lesson plan for Grades K–2 Mathematics
About this resource
- Appropriate grades
- K–2
- Provider
- National Council of Teachers of Mathematics
Legal
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In this lesson, one of a four-part unit from Illuminations titled “Ladybug Adventures — Learning Geometry and Measurement Concepts,” students use their knowledge of numbers, measurement and geometry to plan the steps necessary for a ladybug to draw rectangles of different sizes. As they experiment, students begin to understand the relationship between the shape of a rectangle and the lengths of its sides. They also develop a sense of the amount of turn in a right angle.
North Carolina Curriculum Alignment
Mathematics (2004)
Grade 1
- Goal 3: Geometry - The learner will identify, describe, draw, and build basic geometric figures.
- Objective 3.03: Compare and contrast geometric figures.
- Objective 3.04: Solve problems involving spatial visualization.
Grade 2
- Goal 3: Geometry - The learner will perform simple transformations.
- Objective 3.01: Combine simple figures to create a given shape.
- Objective 3.03: Identify and make:
- Symmetric figures.
- Congruent figures.
Kindergarten
- Goal 3: Geometry - The learner will explore the concepts of geometry.
- Objective 3.01: Identify, build, draw, and name triangles, rectangles, and circles; identify, build, and name spheres and cubes.
- Objective 3.02: Compare geometric shapes (identify likenesses and differences).
- Objective 3.03: Model and use directional and positional vocabulary.
- Objective 3.04: Complete simple spatial visualization tasks and puzzles.
