Free Math Help
Free Math Help: Congruent Triangles
Students learn about congruent triangles. The tutorial consists of definitions and sample exercises with solutions.
Free Math Help
Free Math Help: Classification of Polygons and Triangles
The Geometry session explores the classification of polygons and triangles. Definitions and examples are included.
Free Math Help
Free Math Help: Trapezoids
The lesson discusses trapezoids. The resource consists of an explanation, diagrams, and practice problems with solutions.
Free Math Help
Free Math Help: Area Formulas
The resource consists of area formulas and diagrams for a square, rectangle, circle, triangle, and trapezoid.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Rectangles
Find a quick, concise explanation of rectangles. An example is given and clearly explained.
ClassFlow
Class Flow: Area
[Free Registration/Login Required] This creative and engaging flipchart explains the area of all kinds of shapes, to include squares, parallelograms, rectangles, triangle, and trapezoids.
ClassFlow
Class Flow: Area of Polygons
[Free Registration/Login Required] This flipchart provides students with notes and practice with using formulas for finding the area of triangles and quadrilaterals.
ClassFlow
Class Flow: Area Rectangle
[Free Registration/Login Required] This flipchart will help students to solve the area for various rectangles on graph paper. It asks the students to define and solve for area using the appropriate formula.
ClassFlow
Class Flow: Area Rectangles
[Free Registration/Login Required] In this lesson students will understand area measured in square centimeters. They will understand and use the formula in words for the area of a rectangle.
Mr. Martini's Classroom
Mr. Martini's Classroom: Area of Triangles, Trapezoids & Parallelograms
Students solve for the area of rectangles, squares, triangles, trapezoids, and parallelograms.
Shmoop University
Shmoop: Basic Geometry: Area (Polygon, Triangle, Circle, Square)
The geometry resource investigates the area of polygons, triangles, circles, and squares. Formulas and examples are included.
Shmoop University
Shmoop: Basic Geometry: Area Formulas
The geometry resource investigates the area of polygons, triangles, circles, and squares. Formulas, examples, and practice exercises are included.
Rice University
Rice University: Cynthia Lanius: Hidden Polygon Activity
On this site students are instructed to locate different types of polygons on triangle grid paper. This page can be printed so that students can actually draw them. It also gives a definitions link for each polygon.
Ducksters
Ducksters: Kids Math: Triangles
Learn about equilateral, right angle, and isosceles triangles on this site. Learn how they work, terms, tricks and examples. .
Homeschool Math
Homeschool Math: Area of Parallelograms
This lesson presents the idea that the area of any right triangle is exactly half of a certain rectangle, and contains varied exercises for students.