Bisect

In geometry, to bisect means to divide something into two equal parts. This can be applied to a line, an angle, or a shape. When a line, angle, or shape is bisected, it is split into two congruent (equal) parts.

For example, a line segment can be bisected by finding its midpoint, which is the point that divides the line into two equal parts. An angle can be bisected by drawing a line that splits the angle into two equal smaller angles.

Bisection is an important concept in geometry and is often used in constructions and proofs. Understanding how to bisect different geometric elements is essential for solving various problems in mathematics.

◂Math Worksheets and Study Guides Third Grade. Regrouping

The resources above cover the following skills:

Number and Operations (NCTM)

Compute fluently and make reasonable estimates.

Develop fluency in adding, subtracting, multiplying, and dividing whole numbers.

Select appropriate methods and tools for computing with whole numbers from among mental computation, estimation, calculators, and paper and pencil according to the context and nature of the computation and use the selected method or tools.

Algebra (NCTM)

Use mathematical models to represent and understand quantitative relationships.

Model problem situations with objects and use representations such as graphs, tables, and equations to draw conclusions.

Connections to the Grade 3 Focal Points (NCTM)

Number and Operations: Building on their work in grade 2, students extend their understanding of place value to numbers up to 10,000 in various contexts. Students also apply this understanding to the task of representing numbers in different equivalent forms (e.g., expanded notation). They develop their understanding of numbers by building their facility with mental computation (addition and subtraction in special cases, such as 2,500 + 6,000 and 9,000 - 5,000), by using computational estimation, and by performing paper-and-pencil computations.