+
Worksheet
Curated OER

Area of Right-Angled Triangles

For Teachers 3rd - 5th Standards
There's a trick to solving the area of a triangle, and it involves a skill your geometers have already mastered. Help them discover the connection between finding a rectangle's area and finding a right triangle's area as they solve for...
+
Lesson Plan
Curated OER

Triangles

For Teachers 3rd - 5th
This unit enables scholars to apply the rule for area of a triangle (area equals half base times height). They practice multiplication and division strategies as they calculate areas.
+
Worksheet
Curated OER

Number Sense and Numeration: Square Roots

For Students 8th
In this square roots learning exercise, 8th graders solve 14 different types of problems to include determining the square root of a number of problems, determining the area of a rectangle and the length of a side of a square with the...
+
Assessment11:36
Mathed Up!

Area of Compound Shapes

For Students 7th - 10th Standards
Scholars learn how to determine the area of compound shapes by finding the areas of the basic shapes that make it up. Pupils find the areas by adding areas together or subtracting them.
+
Worksheet
Curated OER

Area of Triangle

For Students 3rd - 5th
In this area worksheet, students read and problem solve the area of 8 triangles. Students show their work on each problem on the worksheet.
+
Lesson Plan
Curated OER

Nets And Surface Area

For Teachers 4th - 6th
Upper graders investigate how to find the surface area when using two-dimensional shapes. They conduct an investigation in groups while working sample problems given during class discussion with the teacher. They also review how to...
+
Lesson Plan
Curated OER

Gougu Rule or Pythagoras' Theorem

For Teachers 5th
Fifth graders explore Pythagoras' Theorem. They examine the pattern linking the length of the hypotenuse of a right angled triangle and the length of the other two sides. Students find an unknown side in right angled triangles.
+
Lesson Plan
Curated OER

Getting It Right!

For Teachers 6th - 8th
Pupils construct right triangles, measuring the sides and recording the measurements in spreadsheets. They analyze their measurements for patterns and research the Internet for information on Pythagoras.
+
Worksheet
Curated OER

Pythagorean Theorem

For Students 10th
In this Pythagorean Theorem worksheet, 10th graders solve and complete 19 various types of problems. First, they draw the square shown and divide its sections as shown. Then, students cut out the 6 parts of the square and rearrange the 4...
+
Worksheet
Curated OER

SAT Grid Practice Test 12

For Students 10th - 12th
In this SAT practice test, students solve various problems dealing with percent, area of polygons, rates, functions, and distance. This one page on-line learning exercise contains ten multi-step problems.
+
Lesson Plan
Curated OER

Pythagorean Theorem

For Teachers 6th - 8th
Students investigate the concept of the Pythagorean Theorem. After conducting independent practice to find the hypotenuse of a triangle, they work with the teacher using examples in the lesson plan. The direct instruction is delivered...
+
Worksheet
Curated OER

Pythagoras' Theorem

For Students 8th - 9th
In this Pythagorean Theorem learning exercise, students use the Pythagorean Theorem to determine the length of a missing side. They calculate surface area of a prism. This two-page learning exercise contains 4 multi-step problems.
+
Lesson Plan
Curated OER

What Goes Around

For Teachers 4th
Fourth graders investigate the relationships between the area and perimeters of squares and rectangles. They calculate the perimeter of rectangles and squares using a formula. Students investigate the relationship between the perimeter...
+
Worksheet
Curated OER

SAT Grid Practice Test 11

For Students 9th - 11th
In this SAT practice test, students compute the area and perimeter of polygons.  They determine the volume of a cylinder and solve problems with exponents.  This one-page worksheet contains 10 problems.  Answers are provided.
+
Lesson Plan
Curated OER

Pythagoras' Theorem

For Teachers 8th - 12th
Students are introduced to the Pythagoras' Theorem and its history, proofs and practice in application. Students find perimeters, areas and volume of everyday objects. Students state and explain the theory.
+
Worksheet
Curated OER

Pythagoras' Theorem

For Students 6th - 7th
In this triangles worksheet, students solve 40 problems in which Pythagoras' theorem is used to check if a triangle is right-angled. This page is intended for online use but may be completed on paper.
+
Lesson Plan
Curated OER

Dizzy Heights

For Teachers 5th
Fifth graders explore ways to measure the height of an inaccessible object. They measure lengths using a tape measure or ruler. Students measure angles using a protractor and estimate heights.
+
Worksheet
Curated OER

Circles - Word Problems

For Students 6th - 7th
In this geometry problem solving worksheet, students answer 8 words problems based on their knowledge of circles, circumference, radius, diameter, and perimeters. They show their work on the sheet between problems.
+
Interactive
Curated OER

SAT problem solving practice test

For Students 9th - 12th
In this online, interactive worksheet (7), students complete ten problems in 12 minutes to help prepare then to take the SATs. The problems vary in difficulty and content.
+
Lesson Plan
Curated OER

Measuring Angles

For Teachers 3rd
Third graders describe an amount of turn from a particular position to another using the 'circular' benchmarks of 0, ++, ++, ++, and full turn. Estimation language such as 'just about', 'between', 'not quite', 'just over', and similar...