Unit Plan
New York City Department of Education

Designing Euclid’s Playground

For Teachers 10th Standards
Create a geometric playground. Pupils work through a performance task to demonstrate their ability to use geometric concepts to solve everyday problems. The accompanying engineering design lessons show teachers how the assessment works...
Lesson Plan
Curated OER

Length, Perimeter, and Area

For Teachers 3rd - 6th
Learners explore the concepts of length, perimeter, and area. In this math activity, students use Shape Explorer to practice finding length, perimeter, and area.
Lesson Plan
Curated OER

Children's Museum of Houston - Pre/Post Classroom Activities - Nets

For Teachers 3rd - 4th
Students make three dimensional shapes with nets. In this nets lesson, students receive nets which they fold to make a three dimensional object. They predict what shape each net will make and verify it after making the net. They use the...
Lesson Plan
Curated OER

Study Buddies: Classifying Triangles

For Teachers 4th - 5th
In this math worksheet, pupils analyze an informative chart about the measurement and angles of equilateral, isosceles and scalene triangles. Students then answer 5 questions about classifying triangles.
Lesson Plan
Curated OER

Complexity Madness

For Teachers 5th
After introducing the concept and formula for finding the area of a square, try this lesson plan. Fifth graders will use their prior knowledge to break apart various shapes in order to determine area. This lesson plan includes several...
Lesson Plan
Curated OER

Shapes from Shapes

For Teachers K
Geometric shapes are really cool. Examine triangles, quadrilaterals, trapezoids, rhombuses, parallelograms, pentagons, and hexagons with your class. They draw large shapes and small shapes then compare them to understand their shapely...
Worksheet
Curated OER

Rotations

For Students 9th - 12th
Use this math learning exercise to have your learners practice constructing a reflection of a shape drawn on a grid by using rotation. This simple learning exercise has six problems for the pupils to solve, and includes and answer sheet.
Worksheet
Curated OER

Countdown Challenge: Similarity

For Students 7th - 8th
In this similarity worksheet, students observe similar rectangles and determine the length of the diagonal. They use words, symbols and diagrams to solve the problem and explain the results. This one-page worksheet contains one...
Worksheet
Curated OER

Countdown Challenge: Similarity

For Students 7th - 8th
In this similarity worksheet, students use similar rectangles to find the length of a diagonal. They use symbols and write paragraphs to explain the problem. This one-page worksheet contains one similar problem with 13 related questions.
Lesson Plan
Curated OER

Measure: Bearings and Scale Drawings

For Teachers 4th - 6th
Pupils practice drawing geometric figures. In this geometry lesson, learners complete an activity that requires them to draw angles and shapes to the nearest degree.
Lesson Plan
Curated OER

How Many Units?

For Teachers 2nd - 3rd Standards
Young mathematicians calculate the area of rectangles and squares. In this geometry lesson plan, learners are grouped in pairs and use geoboards to construct rectangles. They calculate the area of the figure by counting the number of...
Lesson Plan
Curated OER

Candy Bar Measurements

For Teachers 3rd - 4th Standards
Geometers explore mathematics by completing an object measurement worksheet. They utilize a variety of candy bars and rulers to conduct a measurement experiment in class. They complete worksheets as a group based on the measurement...
Lesson Plan
Curated OER

Area & Perimeter Assessment And Practice

For Teachers 5th
Using a pre-test, this lesson starts by establishing differentiated learning groups. Each group practices determining area and perimeter using interactive web sites small groups are then pulled aside and given additional support as...
Worksheet
Curated OER

Making Two-Dimensional Shapes

For Students K - 1st
Which shapes fit? Learners practice visual discrimination using a geometry worksheet, which has them examine shapes that have been divided in half. They observe a set of shapes to determine which of them would fit into each half of the...
Worksheet
Curated OER

Making Two-Dimensional Shapes

For Students K - 1st
Find the shapes that fit. Pupils explore visual discrimination in a set of geometry worksheets, which has them examine shapes that have been divided in half. They observe a set of shapes to determine which of them would fit into each...
Lesson Plan
Curated OER

Congruent Rectangles

For Teachers 7th - 9th Standards
Very simply, geometers examine a pair of rectangles on graph paper and find a translation and rotation to demonstrate their congruence. A couple of questions follow to stimulate critical thinking about other possibilities.
Assessment
1
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Curated OER

Congruent Segments

For Students 7th - 9th Standards
The task, should your class decide to take it, is to list a series of reflections that transfer a line segment from one position to another. 
Lesson Plan
Curated OER

Angle Measurement and the AD-1 Aircraft

For Teachers 7th - 8th
Students represent and solve problems using geometric models and apply geometric properties and relationships. They also practice constructing and measuring angles. By constructing, drawing, visualizing, and comparing geometric figures...
Lesson Plan
Curated OER

Investigating Area Using Tangrams

For Teachers 10th
Tenth graders connect the history of geometry to problem solving. In this geometry lesson, 10th graders investigate polygons through hands on manipulatives and solve problems relating to parallelograms and triangles. They calculate the...
Lesson Plan
Curated OER

Polydron Fun

For Teachers 9th - 11th
Students investigate nets as they relate to volume and area. In this geometry lesson, students use nets as a visual to deepen their understanding of surface area and volume of objects. They make conjectures about different objects and...
Worksheet
Math Mammoth

Finding the Area of Rectangles, Parallelograms, and Triangles

For Students 9th
In this area of polygons activity, 9th graders solve two area of rectangles, one area of parallelogram, and ten area of triangles problems.  The formulas for finding the area of these figures are provided.
Lesson Plan
Curated OER

Which Quadrilateral Is It?

For Teachers 9th - 12th
Students prove conjectures about geometric figures on the plane or in space using coordinate geometry. They develop fluency in operations with real numbers, vectors and matrices using mental computation or paper-and-pencil calculations...
Lesson Plan
Curated OER

Preparation and Transition to Two-Column Proofs

For Teachers 10th - 11th
Young scholars investigate proofs used to solve geometric problems. In this geometry lesson, students read about the history behind early geometry and learn how to write proofs correctly using two columns. The define terminology valuable...
Lesson Plan
Curated OER

Special Segments in Triangles

For Teachers 9th - 12th Standards
Students identify important properties of triangles. In this geometry lesson, students differentiate between medians, bisectors and altitudes in a triangle. They identify the properties of these important segments.

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