Curated OER
Show Me!
Students analyze and interpret graphs. In this graphing lesson, students view a video and construct their own graphs (line, circle, bar) from given sets of data.
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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...
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Clock Arithmetic and Cryptography
Students explore the concept of modular arithmetic and cryptography. In this modular arithmetic and cryptography lesson, students use applets to explore modular arithmetic using a clock and Caesar Ciphers. Students exchange their ciphers...
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Figuring Elapsed Time
Students discover the concept of elapsed time. In this calculating time lesson, students utilize the Internet to complete record sheets based on the concept of elapsed time. Finally, the students answer questions on their own.
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Misleading Graphs
Students explore number relationships by participating in a data collection activity. In this statistics instructional activity, students participate in a role-play activitiy in which they own a scrap material storefront that must...
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An Introduction to Counting
Learners define the counting principle and how it relates to integers. In this algebra lesson, students add and subtract using the addition and multiplication principles. They solve problems using combination and permutations.
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Badminton or Basketball?
Students explain why for a group of n people, there are an equal number of possibilities for subgroups of size k (such that k < n) and size n - k.
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...
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Wheat Kernels Bar Graph
Third graders create a bar graph to record how many kernels were in a wheat stalk. They write in math journals two questions from interpreting the graph. They solve math problems from other students.
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Estimation
Students explore the concept of estimation. In this estimation lesson, students discuss making estimates through teacher led discussion. Students use the Internet to complete an activity where they must estimate the length of lines.
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Fraction Facts
Students explore the concept of fractions. In this fractions lesson, students perform basic operations such as addition and subtraction with fractions. Students play a game on the computer called 'Fraction Four' that gives students...
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Introduction to Fractals: Geometric Fractals
Students explore the concept of fractals. In this fractals lesson, students discuss Sierpinski's Triangle using an applet. Students discuss the patterns involved with fractals. Students discuss the area of Sierpinski's triangle as the...
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Prime Factorization
Young scholars work with prime numbers. In this prime factorization lesson, students review writing numbers in their prime factorization form and solve multiple problems.
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Sampling Techniques
Sixth graders examine how to select samples and apply them to an experiment. In this sampling lesson plan, 6th graders use a bag of yellow and blue cubes to take a sample. They predict how many of each color there are the bag. They set...
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Recognizing Patterns
Students explore the concept of patterns. In this patterns lesson, students use applets to manipulate tessellations. Students predict the next number in a sequence by recognizing patterns.
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M&M Caper
Students participate in a game with M&M's to be introduced to percents and ratios. Individually, they estimate and record the number of candies they believe the bag holds and the amount of each colored candy. They open the bag and...
EngageNY
Population Problems
Find the percent of the population that meets the criteria. The 17th segment of a 20-part unit presents problems that involve percents of a population. Pupils use tape diagrams to create equations to find the percents of subgroups...
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Chill Out
Students investigate Newton’s Law of Cooling. In this Algebra II/ Pre-Calculus lesson, students explore exponential regression as they conduct an experiment to simulate the temperature variations that occur as a liquid cools. ...
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Data Analysis
Twelfth graders collect and analyze data. In this secondary end-of-course mathematics activity, 12th graders formulate a question they would like to answer and decide on an appropriate means of data collection. Students...
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Using Graphs and Charts
Students complete T charts and manipulate numbers using graphs and charts. In this math graphs and charts lesson, students review the concepts of pattern and function. Students then complete practice pages where they manipulate numbers...
EngageNY
A Synthesis of Representations of Equivalent Ratio Collections
Make all the ratio representations fit together. The 15th segment in a series of 29 presents ratio problems to solve. Scholars use a variety of representations to respond to the questions. The problem set has pupils show how the...
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Linear Modeling: Functions
Students analyze linear functions. In this algebra lesson, students create a linear model to relate coordinate pairs. They evaluate and solve equations.
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Multiplying by 10, 100, & 1000
Students understand that a shortcut can be used when multiplying by 10, 100 & 1000. In this multiplying lesson plan, students mentally multiply by 10, 100 & 1000. Students complete a worksheet with multiplication problems.
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Composition of Reflections
Students perform reflections and translations of polygons. In this geometry lesson, students perform reflection in two parallel lines. They use Cabri to observe the transformation and rotations of each shape.