Curated OER
Geometry: Area Project
Sixth graders identify and use area formulas for finding the area of geometric shapes.
Curated OER
Finding the Area of a Triangle
Fifth graders investigate the area of a triangle. In this geometry lesson, 5th graders practice finding the area of a triangle using the correct formula: 1/2bh.
Curated OER
Perimeter and Area
Seventh graders develop strategies for finding the perimeter and area of large geometric figures. Through lecture and guided practice, 7th graders practice the strategy of dividing a geometric shape into smaller more manageable shapes...
Curated OER
Does the Area of the Quadrilateral Change?
Seventh graders complete activities to further their understanding of area formulas. In this area lesson, 7th graders watch as the teacher uses Polystrips to model parallelograms. Students find the area of a rectangle and answer...
Curated OER
Circumference and Area
In this geometry worksheet, students answer 10 questions regarding, circumference, area, time, calculating the radius if given a diameter, and polygon recognition.
Curated OER
Connecting Formulas Related to Geometric Figures
Young scholars identify diagrams of quadrilaterals and circles by different names and classify the figures. They name the areas for each diagram and practice solving the formulas for each.
Curated OER
Does Your Rectangle Have Guts?
Does it? Kids find the perimeter and area of different shapes to assess whether their rectangle has guts. In addition to finding the area of a rectangle, learners work to find the area of a trapezoid. All worksheets are included.
Virginia Department of Education
Middle School Mathematics Vocabulary Word Wall Cards
Having a good working knowledge of math vocabulary is so important for learners as they progress through different levels of mathematical learning. Here is 125 pages worth of wonderfully constructed vocabulary and concept review cards....
Shodor Education Foundation
InteGreat
Hands-on investigation of Riemann sums becomes possible without intensive arithmetic gymnastics with this interactive lesson plan. Learners manipulate online graphing tools to develop and test theories about right, left, and...
EngageNY
Modeling Riverbeds with Polynomials (part 1)
Many things in life take the shape of a polynomial curve. Learners design a polynomial function to model a riverbed. Using different strategies, they find the flow rate through the river.
Curated OER
XY Coordinate Planes - Area of Trapezoids
In this online math activity, high schoolers calculate the area of a variety of trapezoids. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching tool!
Curated OER
AP Calculus Practice Exam BC Version: Part B
In this calculus instructional activity, students solve 17 multiple choice problems. Students find limits, summations, and derivatives of functions. Students find the area of an enclosed region between two curves.
Curated OER
The Trappings of Trapezoids
Students define trapezoids and their shapes. For this geometry lesson, students calculate the area of a trapezoid and a parallelogram. They use Cabri software to make investigations.
Curated OER
Leveled Problem Solving Areas of Triangles and Trapezoids
In this geometry learning exercise, 6th graders calculate the area of triangles and trapezoids using the given formulas. They use the formulas to find measurements of lines that are part of the triangles and trapezoids.
Curated OER
Trapezoid Prisms: Surface Area and Volume
In this volume and surface area worksheet, learners find each for a set of 4 trapezoid prisms. An answer key is included on page 2.
![Area of Trapezoids [2] Worksheet](http://content.lessonplanet.com/resources/thumbnails/210353/large/cgrmlwnvbnzlcnqymdezmdmzmc0ynzc5ns0xyzv4zzfwlmpwzw.jpg?1414302217 "Area of Trapezoids [2] Worksheet")
Curated OER
Area of Trapezoids [2]
In this area of trapezoids worksheet, students solve for the area of 6 trapezoids. Answers included on page 2, no review of formula on worksheet.
![Area of Trapezoids [3] Worksheet](http://content.lessonplanet.com/resources/thumbnails/217009/large/cgrmlwnvbnzlcnqymdezmdmzms0yoti2ny1onwnubdcuanbn.jpg?1414307049 "Area of Trapezoids [3] Worksheet")
Curated OER
Area of Trapezoids [3]
In this trapezoid activity, students find the area of 6 trapezoids, no review problems or formula is provided. Answers are included on page 2.
![Area of Trapezoids [4] Worksheet](http://content.lessonplanet.com/resources/thumbnails/217011/large/cgrmlwnvbnzlcnqymdezmdmzms0xmziwmi0xnjztcjrilmpwzw.jpg?1414307050 "Area of Trapezoids [4] Worksheet")
Curated OER
Area of Trapezoids [4]
For this trapezoid worksheet, students find the area of 6 trapezoids, no review problems or formula is provided. Answers are included on page 2.
Curated OER
Median of a Trapezoid
Learners find the median of trapezoids and other polygons. In this geometry lesson, students identify important properties of trapezoids. They create trapezoids and polygons using Cabri software.
Curated OER
Area of Trapezoids (5)
In this geometry worksheet, students solve 6 problems in which the area of a trapezoid is calculated. There are no examples and no formula is provided.
Curated OER
Area and Perimeter of Various Shapes
In this area and perimeter worksheet, students find each for 6 given shapes. A website reference for additional resources and an answer key are provided.
Curated OER
Effects of Changing Dimensions Proportionally
In this geometry activity, learners describe the effect of a proportional change on the perimeter or circumference and area of the given circles or quadrilaterals. The one page activity contains ten problems. Answers are...
Willow Tree
Perimeter of Common Geometric Figures
Help learners understand that perimeter and circumference are one in the same. Learners apply their skills to determine the perimeter/circumference of triangles, rectangles, and circles. They then use the same strategy to find the...
Illustrative Mathematics
Overlapping Squares
The objective of this activity is to find the percent of the area of a two squares overlapping. Mathematicians find the ratio of area for the part that overlaps to the rectangle formed. The final answer is a percent as a rate per 100....