Worksheet
Curated OER

Heron's or Hero's Formula for Area of Scalene Triangle

For Students 7th - 8th
In this Heron's or Hero's formula for area of scalene triangle worksheet, students solve 4 word problems using the formula given for area of a triangle.
Worksheet
Curated OER

Triangles

For Students 10th
In this triangles worksheet, 10th graders solve and complete 23 various types of problems. First, they match the triangle description with the most specific name and write the letter on the line provided. Then, students classify the...
Organizer
Curated OER

Area, Perimeter, Volume Formulas

For Students 9th - 10th
In this formulas learning exercise, students write the area, perimeter, and volume formulas of 17 2D and 3D polygons.  Students list properties of various types of triangles and the metric conversions for metric units.
Worksheet
Curated OER

Using Trigonometry to Find Area

For Students 11th - 12th
For this Algebra II/Trigonometry worksheet, students use trigonometry to determine the area of a triangle or a parallelogram.  The one page worksheet contains ten problems.  Answers are not provided. 
Worksheet
Curated OER

Area and Perimeter

For Students 10th
For this geometry worksheet, 10th graders use single variable equations to solve problems focusing on area and perimeter of triangles, trapezoids, parallelograms, rectangles, and hexagons.  The one page worksheet contains seventeen...
Worksheet
Curated OER

Find the Area or Missing Length of the Polygon

For Students 7th - 10th
In this area and perimeter worksheet, students find the length or area of seventeen figures.  The figures examined are triangles, trapezoids, parallelograms, rectangles, and hexagons.  Some examples and solutions are...
Worksheet
Curated OER

Triangle Exercises

For Students 6th - 8th
In this math worksheet, students determine the name for each triangle according to its classification. Then they create a truss construction model.
Assessment
Los Angeles County Office of Education

Assessment For The California Mathematics Standards Grade 6

For Students 6th Standards
Test your scholars' knowledge of a multitude of concepts with an assessment aligned to the California math standards. Using the exam, class members show what they know about the four operations, positive and negative numbers, statistics...
Assessment
Concord Consortium

Three Rubber Bands

For Students 7th - 12th Standards
Stretch your mind about triangles. Given a triangle, scholars consider a smaller triangle formed when they stretch three rubber bands from each vertex to the opposite side. They determine the ratios of the areas and perimeters of the...
Unit Plan
Mathematics Vision Project

Module 5: Modeling with Geometry

For Students 9th - 12th Standards
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts...
Assessment
Los Angeles County Office of Education

Assessment For The California Mathematics Standards Grade 4

For Students 4th Standards
Have scholars show what they know with a 20-page assessment aligned to the California State Standards. The test covers concepts such as large and whole numbers, all four mathematical operations, fractions, decimals, geometric figures,...
Printables
1
1
Houghton Mifflin Harcourt

Unit 6 Math Vocabulary Cards (Grade 5)

For Students 5th Standards
Acute angles, nets, and vertices are only a few terms that a set of flash cards includes. Among the 108 cards, two types are available; word cards printed in bold-faced lettering, and corresponding definition cards equipped with an...
Worksheet
Curated OER

Heron's Formula Activity

For Students 5th - 6th
In this Heron's formula worksheet, students find the area of scalene triangles to the nearest tenth, showing their work in work space provided. Answers are included on page 2.
Worksheet
Curated OER

Geometry Review

For Students 6th - 8th
In this geometry math review worksheet, students respond to 37 questions that serve as a review of geometry skills.
Worksheet
Curated OER

4th Grade Math Worksheet

For Students 4th - 5th
In this 4th grade math review worksheet, students respond to 60 multiple choice questions that review of fractions, decimals, geometry, number sense, and computation.
Organizer
Curated OER

Properties of Shapes

For Students 9th - 12th
In this math worksheet, students look for the properties related to each shape and then fill in the graphic organizer with the categories needed.
Handout
Math Open Reference

Math Open Reference: Scalene Triangle

For Students 3rd - 8th Standards
Learn about scalene triangles with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Unit Plan
Cuemath

Cuemath: Right Angled Triangle

For Students 9th - 10th Standards
Explore and learn about the features and properties of a right triangle in this lesson. Includes examples and practice questions.
Unit Plan
Wolfram Research

Wolfram Mathworld: Isosceles Triangle

For Students 9th - 10th
MathWorld explains what an isosceles triangle is and how it compares with equilateral, and scalene triangles. The altitude and area of these triangles are also discussed.
Unit Plan
Math Open Reference

Math Open Reference: Triangles

For Students 9th - 10th Standards
A complete reference guide to types of triangles and triangle perimeter and area. It provides definitions and interactive animated activities that enhance further explanation.
Unit Plan
BBC

Bbc: Bitesize: Maths: 2 D Shapes

For Students 2nd - 8th Standards
Learn about the properties of 2-D shapes: circles, triangles, polygons, and quadrilaterals. Includes information, video, and examples about each, with games and quizzes for reinforcement.