EngageNY
Trigonometric Identity Proofs
Proving a trig identity might just be easier than proving your own identity at the airport. Learners first investigate a table of values to determine and prove the addition formulas for sine and cosine. They then use this result to...
Curated OER
Partial Quotient
Students study what occurs in the division process, rather than just following prescribed steps. They expand number sense to include integers and perform operations with whole numbers, simple fractions, and decimals. They write a word...
EngageNY
Similar Triangles in Circle-Secant (or Circle-Secant-Tangent) Diagrams
First angle measures, now segment lengths. High schoolers first measure segments formed by secants that intersect interior to a circle, secants that intersect exterior to a circle, and a secant and a tangent that intersect exterior to a...
EngageNY
The Multiplication of Polynomials
If you can multiply multi-digit integers, you can multiply polynomials. Learners use an area model to compare multiplying numbers to multiplying polynomials. They progress to using the distributive property.
EngageNY
Exploiting the Connection to Trigonometry 1
Class members use the powers of multiplication in the 19th installment of the 32-part unit has individuals to utilize what they know about the multiplication of complex numbers to calculate the integral powers of a complex...
Curated OER
Metrically Me!
Students define the parts of a database, search strategies to locate information electronically, create/modify databases, etc. and enter data into a prepared spreadsheet to perform calculations.
Curated OER
Let's Tesselate
Students investigate the geometrical concepts of translation, reflection, and rotation. They make different observations looking for the concepts that are displayed in classroom items like floor tiles, carpet designs, and visuals hung in...
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Geo Jammin' By DeSign - Day 1, Lesson 2: Dancing Duo
Second graders and teachers identify geometric vocabulary word by searching a geometry website. They create a Quilt Word Wall using the geometry words.
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Performing Transformations
Students investigate the concepts relating to creating a tessellation. They include using pattern blocks in order to create interconnecting patterns. Students review translations, rotations, and reflections.
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Symmetry, Similar & Congruent Shapes
Fifth graders identify lines of symmetry., similar and congruent shapes. They use construction paper to create their own symmetrical shapes. Students create stained glass frames containing symmetrical, congruent and similar shapes.
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Virtual Field Trip
This hands-on resource has future trip planners analyze graphs of mileage, gasoline costs, and travel time on different routes. While this was originally designed for a problem-solving exercise using a Michigan map, it could be used as a...
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Toothpick Tops
Pupils assembly tops and name them 1 - 12 so that they can compare their results. They guess which top they think will spin the best and then record data on "Toothpick Top" table. Using a stopwatch or clock to measure and record the spin...
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Picture It-Fractions
Third graders draw pictures of fractions and label them with the correct fractional amount.
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Can You Build It?
Students investigate the concept of perimeter. They design there own figure and measure the perimeter of it. The lesson is given the context of the shape being a path that is traveled by a ladybug. This provides the shape of the plane...
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Converting Fractions to Decimals
Seventh graders take a simple fraction and give it decimal form either by the use of equivalent fractions or division with a calculator.
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Complexity Madness
Discuss different techniques for finding the area of a geometric shape, with a great visual guide. Using a real life example, learners calculate the area of a rectangle and a square.
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Arranging Numbers from 1 to 5
Kindergarteners arrange manipulatives or everyday objects in groups of one through five. They identify groups seen in pictures of nature and compare same numbers of different objects.
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Cuisenaire Mats
First graders use Cuisenaire rods to study the mathematical symbols =, <, > for the relationships is equal to, is less than, and is greater than. They use the rods to show visual explanations of common number combinations.
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Investigation Can You Build This?
Students work in small groups to explore spatial relationships while building with color cubes. Students must identify positions of blocks to partner, recreate a model, and color a sketch of their structure appropriately.
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What is the Average Height of Your Class?
In this statistics lesson, learners use an on-line form generator create a class-specific form, then complete the form, view a graph and data analysis, and draw conclusions.
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Ordering Rational Numbers and Finding Their Approximate
Middle schoolers explore the concept of ordering rational numbers on a number line. They represent rational numbers as decimals and percents. Pupils create a foldable about converting fractions to decimals to percents, and use a...
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Marble Mania
Students explore the concept of probability. In this probability lesson, students develop an understanding of probability by pulling marbles out of a bag and recording the data. Students use the recording sheet to discuss the results of...
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Decreasing Differences
Students identify and interpret the pattern within a set of numbers using words. Then they write rules in words using complete sentences. Students also highlight two similar sequences with the same difference in order to get the first...
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Flying Geese
Students examine the Flying Geese quilt pattern, and discuss and identify the pattern. They write a paragraph titled, My Quilt Report, summarizing the information discussed about the quilt patterns.