Curated OER
Associative Property
Here is a new twist on teaching the associative property of multiplication. The author of this presentation makes an analogy between the associative property and a couple getting married. The numbers, like people, are separate, but when...
Curated OER
Triangles Inscribed in a Circle
Are you tired of answers without understanding? Learners can give a correct response, but do they really understand the concept? Have young mathematicians think deeper about linear functions, angles, and formulas in algebra. Learners are...
Curated OER
Mathematical Reasoning
Ninth graders solve mathematical mysteries associated with a real life situation. In this ninth grade mathematics lesson, 9th graders choose a scenario from Real Life Math Mysteries by Mary Ford Washington and solve one or more of the...
Curated OER
Careers in Mathematics Project
Students use technology (Internet, email) to research mathematics in nonacademic careers in order to increase their awareness and appreciation of mathematics in the "real world."
Curated OER
Mathematics and the Art of M.C. Escher
Students discover the connection between Escher's art and mathematics. They give various presentations based on their study.
Curated OER
Investigation-Mathematical Reasoning: Tables and Chairs
Fourth graders design a table and chair arrangement. For this mathematical reasoning lesson, 4th graders place tables shaped like equilateral triangles so that they seat the appropriate number of guests.
Curated OER
Think About It!
Students complete ten problems on a "Think About It" worksheet. They can also take a quiz online.
Curated OER
Problem Solving - A Part of Everyday Thinking
Students master the process of applying critical thinking to each and every problem/task that confronts them in their daily undertakings. Further, this activity can serve as a base reference and model for other problems that may arise.
Curated OER
I Think I Forgot Something!
Students examine human health by reading a children's book in class. In this breakfast instructional activity, students identify the importance of starting the day with a good, nutritious meal. Students read the book I Think I Forgot...
Curated OER
Think Positive!
Fourth graders are read a story in which they identify the positive and negative thinking. In groups, they are given a scenerio in which they change the negatives into a positive. They perform the scenerio to tthe class and discuss how...
Curated OER
Misconceptions in Mathematics: Misconception 21
In this mathematics misconceptions activity, students examine examples of math mistakes pertaining to probability and explore the reasons that the examples are incorrect.
Curated OER
Literacy in Content Areas: Think Aloud
Fifth graders examine the "think aloud" reading strategy. In this reading strategies lesson, 5th graders apply the think aloud strategy to solving word problems in math.
Illustrative Mathematics
Miles to Kilometers
Can your mathematicians come up with an easy way to convert miles to kilometers? Start by asking learners to write an algebraic expression for each of the descriptions given. Once they determine that they are both the same, ask...
EngageNY
Complex Numbers and Transformations
Your learners combine their knowledge of real and imaginary numbers and matrices in an activity containing thirty lessons, two assessments (mid-module and end module), and their corresponding rubrics. Centered on complex numbers and...
EngageNY
End-of-Module Assessment Task - Algebra 1 (Module 3)
Looking for higher-level thinking questions? This assessment provides questions that challenge young mathematicians to think and analyze rather than simply memorize. Topics include piecewise functions, linear modeling, exponential...
Noyce Foundation
First Rate
Explore distance and time factors to build an understanding of rates. A comprehensive set of problems target learners of all grade levels. The initial problem provides distance and time values and asks for the winner of a race. Another...
EngageNY
Searching a Region in the Plane
Programming a robot is a mathematical task! The activity asks learners to examine the process of programming a robot to vacuum a room. They use a coordinate plane to model the room, write equations to represent movement, determine the...
EngageNY
Chance Experiments, Sample Spaces, and Events
Want a leg up on the competition? Show classes how to use mathematics to their advantage when playing games. Learners calculate probabilities to determine a reasonable scoring strategy for a game.
EngageNY
Mid-Module Assessment Task - Geometry (Module 1)
How do you prepare class members for the analytical thinking they will need in the real world? An assessment requires the higher order thinking they need to be successful. The module focuses on the concept of rigid transformations...
Institute for Teaching through Technology and Innovative Practices
The Right Number of Elephants
How can you tell if a number of items is reasonable? Combine math and language arts with a fun lesson based on Jeff Shepard's The Right Number of Elephants. After reading the book, kids discuss amounts of other items and create minibooks...
EngageNY
Exploiting the Connection to Trigonometry 2
The class checks to see if the formula for finding powers of a complex number works to find the roots too. Pupils review the previous day's work and graph on the polar grid. The discussion leads the class to think about how to reverse...
EngageNY
Selecting a Sample
So what exactly is a random sample? The 15th part in a series of 25 introduces the class to the idea of selecting samples. The teacher leads a discussion about the idea of convenient samples and random samples. Pupils use a random...
EngageNY
End-of-Module Assessment Task - Geometry (module 1)
Have you hit a wall when trying to create performance task questions? Several open-ended response questions require a deep level of thinking. Topics include triangle congruence, quadrilaterals, special segments, constructions, and...
Curated OER
Rating Systems
Your favorite sports team is ranked #1. How do the powers that be determine this rating? Learn how ratings are mathematically computed using probability concepts, from the Elo Rating System for chess to the Rating Percentage Index for...