Grade 4 - Geometry Unit
The Geometry Unit involves analyzing the defining attributes of 2-dimensional shapes in order to answer questions such as:
- What is the relationship between the sides of this shape?
- How is this relationship used to define the shape?
Math Concepts and Skills:
The student analyzes geometric attributes in order to develop generalizations about geometric figures.
The student:
- identifies geometric features—points, lines, line segments, rays, angles, and perpendicular and parallel lines.
- identifies and draws one or more lines of symmetry, if they exist, for a two-dimensional geometric figure.
- uses knowledge of right angles to identify acute, right, and obtuse triangles.
- classifies two-dimensional figures based on the presence or absence of parallel or perpendicular lines or the presence or absence of angles of a given size.
Summative Assessment Task
Given various clues, students determine which shapes can represent each set of clues.
Instructional Tasks/Formative Assessments
Students determine which triangles and quadrilaterals Kyle can make with sticks and glue, and the total amount of time it will take to make all the shapes.
Given first initial of five girls, students list the letters in order from the letter that has the least number of angles to the letter that has greatest number of angles.
Given the fair value of a square, students determine the fair values of at least three other shapes within the square.
Using pentominoes, students determine which pentominoes will fit a series of clues.