In mathematics, a shape is a two-dimensional figure that has a specific outline or boundary. Shapes can be classified based on the number of sides, angles, and other properties.

There are various types of shapes, some of the common ones include:

**Triangles:**A polygon with three sides and three angles.**Quadrilaterals:**A polygon with four sides and four angles. Examples include squares, rectangles, parallelograms, and trapezoids.**Circles:**A shape with all points in a plane at a fixed distance from a center point.**Polygons:**A closed figure with three or more straight sides.**Other shapes:**This category includes shapes like pentagons, hexagons, octagons, and more.

Shapes have various properties that can be used to identify and classify them:

**Number of sides:**This refers to the count of line segments that form the boundary of the shape.**Angles:**The measurement of the "corners" of the shape, typically measured in degrees.**Area:**The amount of space enclosed by the shape.**Perimeter:**The distance around the boundary of the shape.**Symmetry:**Whether a shape can be divided into two identical halves.

When studying shapes, it's important to familiarize yourself with the following concepts:

- Understanding the properties of different shapes.
- Being able to identify and classify shapes based on their properties.
- Calculating the area and perimeter of various shapes.
- Recognizing and understanding symmetry in shapes.
- Practicing drawing different shapes and understanding their characteristics.

By mastering these concepts, you'll have a strong foundation in working with shapes in mathematics.

.Study GuideAlgebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer keyAlgebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer keyAlgebraic Equations

Algebra (NCTM)

Represent and analyze mathematical situations and structures using algebraic symbols.

Recognize and generate equivalent forms for simple algebraic expressions and solve linear equations

Grade 6 Curriculum Focal Points (NCTM)

Algebra: Writing, interpreting, and using mathematical expressions and equations

Students write mathematical expressions and equations that correspond to given situations, they evaluate expressions, and they use expressions and formulas to solve problems. They understand that variables represent numbers whose exact values are not yet specified, and they use variables appropriately. Students understand that expressions in different forms can be equivalent, and they can rewrite an expression to represent a quantity in a different way (e.g., to make it more compact or to feature different information). Students know that the solutions of an equation are the values of the variables that make the equation true. They solve simple one-step equations by using number sense, properties of operations, and the idea of maintaining equality on both sides of an equation. They construct and analyze tables (e.g., to show quantities that are in equivalent ratios), and they use equations to describe simple relationships (such as 3x = y) shown in a table.