EngageNY
How Do Dilations Map Angles?
The key to understanding is making connections. Scholars explore angle dilations using properties of parallel lines. At completion, pupils prove that angles of a dilation preserve their original measure.
Curated OER
Proofs of the Pythagorean Theorem
Working individually and collaboratively, geometers gain a clear understanding of the Pythagorean theorem. They create, explain, and compare proofs of the theorem. Proofs involve areas of trapezoids, squares, and triangles, congruent...
Shodor Education Foundation
An Introduction To Quadrilaterals
Young geometers investigate and apply properties of quadrilaterals. After a review and discussion of key terms, students use a computer applet to explore four-sided figures and classify them according to their attributes. The...
Howard Hughes Medical Institute
What van Leeuwenhoek Saw
When van Leeuwenhoek saw cells and single-celled organisms for the first time, he knew these small things were a big deal! Share his discoveries with young learners through a narrated video, model-building activity, and scale study....
Shodor Education Foundation
Estimating With Fire
Watch the damage from a forest fire in this interactive simulation activity that challenges learners to estimate the burn area using different approaches. Learners are given a worksheet to track the different burn patterns and practice...
West Contra Costa Unified School District
Quadratic Equations — What We Know
Everything you could possibly want to know about quadratic equations, all in one resource. Instructors demonstrate how to translate between different forms of quadratics (equation, table of values, graph, verbal description) and finding...
West Contra Costa Unified School District
Introduction to Solving Linear Inequalities in One Variable
Life isn't fair ... like inequalities. After first reviewing inequality symbols and how to read inequality statements, learners discover how to solve one-step inequalities and graph their solution sets.
Shodor Education Foundation
Playing with Probability
Review basic probability concepts with your class using different-colored marbles in a bag. Then pair up learners and have them play a cool online interactive game in which they race miniature cars using the roll of a die or two. The...
Shodor Education Foundation
Visual Patterns in Tessellations
Geometers explore the concept of tessellations. They use a tessellation applet to manipulate shapes and design their own tessellation using the applet.
Shodor Education Foundation
Pythagorean Theorem
Most adults remember learning about the Pythagorean theorem, but they don't all remember how to use it. The emphasis here is on developing an intuitive understanding of how and when to use the theorem. Young mathematicians explore...
West Contra Costa Unified School District
Evaluating Functions
Functions as inputs for other functions? After reviewing function notation and how to input values to evaluate functions, class members input functions into functions, essentially determining the composition of functions.
West Contra Costa Unified School District
Graphing Exponential Functions
Once you know how to graph y = b^x, the sky's the limit. Young mathematicians learn to graph basic exponential functions and identify key features, and then graph functions of the form f(x) = ab^(x – h) + k from the function f(x) = b^x.
West Contra Costa Unified School District
Multiple Representations of Equations
class members first work through finding the equation, table of values, graph, and key features of a linear function expressed verbally. Individuals then work through several more problems given different representations.
EngageNY
Construct and Apply a Sequence of Rigid Motions
Breaking the rules is one thing, proving it is another! Learners expand on their previous understanding of congruence and apply a mathematical definition to transformations. They perform and identify a sequence of transformations and use...
Curated OER
Ecosystems-The Essential Connection
Students develop their abilities to solve problems both in school and in a variety of situations similar to that they have encountered in life. They define the term ecosystem in nature by comparing them to familiar organizational...
Curated OER
We Are a Fact Family! Integration Is the Key!
Students practice addition and subtraction. In this fact families unit, students practice finding sums and differences for fact families. This unit includes ten lessons with science and social studies integration.
Curated OER
Geometry is Fun and EverywhereGeometry, You Don’t Care? Geometry is Fun and Everywhere
Third graders investigate shapes in our world. In this geometry lesson plan, 3rd graders describe plane and solid shapes and identify angles, solid objects and lines of symmetry. Students use online resources, graphic organizers and...
Curated OER
Survey and Tally
Second graders view a model of a survey and tally. In this survey and tally lesson plan, 2nd graders decide on questions for a survey. Students conduct the survey and tally their results. Students create a tally chart. Students view a...
Curated OER
Our World of shapes
First graders listen to Shapes and The Greedy Triangle to identify and describe examples of geometric shapes. In this geometric shapes lesson, look for geometric shapes in real world places. Students make a mobile of shapes in the real...
Beacon Learning Center
Twix-n-Tween
Yummy! Use Twix candy bars to teach a instructional activity in comparing length! Learners will love this instructional activity and you will be addressing Common Core standards at the same time!
Curated OER
Sets and the Venn Diagram
Students review number sets and complete a Venn Diagram for number sets. In this number sets activity, students review integers, whole numbers, and elements. Students use computers to create a Venn Diagram for number sets. Students...
Curated OER
Probability and Sports
Students explore the concept of probability in sports. In this probability in sports lesson plan, students research a sport that they enjoy. Students find probability information related to their sport. Students share their findings with...
Curated OER
Modular Arithmetic
Learners investigate modular arithmetic and how to use it to solve real world problems. In this modular arithmetic lesson, students use computers to work on modular arithmetic after a teacher guided lesson. They complete guided practice...
Curated OER
Area Explorations
Young scholars explore the concept of area. In this area lesson, students find the area of irregular shapes with right angles. Young scholars break down each irregular shape into multiple regular shapes in order to find the area. ...