Curated OER
Mathematical Proofs
Students explore the nature of mathematical proofs and mathematical inquiry. They complete the activity "Using the Pythagorean Theorem". They read selected articles and participate in class discussions.
Curated OER
Time Problems
Students make sensible estimates and check for reasonable results. They also solve problems with positive and negative integers using practical activities or models as needed.
Curated OER
Can Stack
Students are able to find the rule for summing consecutive numbers;
identify the pattern of triangular numbers. They then solve the given problem using logic and mathematical reasoning.
Curated OER
That's Not Fair
Fourth graders in pairs, go to the front of the class, where one student is given five pieces of candy in one hand and four in the other. The other student is given four candies in one hand and none in the other. They discuss if they...
Alabama Learning Exchange
Are Your Numbers Round?
Elementary schoolers investigate how to round numbers to the nearest tenth. In this number sense lesson, learners view a video clip on the Internet to practice rounding numbers. They use place value charts to help aid in the rounding...
Curated OER
Cover the Triangle
Students explore geometric shapes using pattern blocks. They use specific shapes to fill in triangles, color-in their solutions, and discuss the results with a partner.
Curated OER
Monkey Subtraction
Students listen to the book Five Little Monkeys Sitting In a Tree, identify written numbers 0-9 and the symbol for subtraction; students subtract two single digit numbers using manipulatives, and recite the corresponding number sentence.
Curated OER
Figure This Out
Students measure different parts of the human body. In this measurement activity, students work in pairs to take measurements of human measurements which include: arm span, height, foot length, and wrist to longest finger. They also...
Curated OER
Table Settings
Learners make organized lists and find patterns to help them solve problems. They draw table formations and label how many people can sit there. They make predictions about how the tables be set up and what happen to the seating.
Curated OER
Water Treatment Plant Tour
Students define vocabulary related to geometry and calculate the volume. In this geometry lesson, students calculate flow rates, and volume as it relates to a water plant facility. They calculate the volume of three dimensional shapes...
Curated OER
Multiplying Polynomials
Students explore the concept of multiplying polynomials. In this multiplying polynomials lesson, students watch a video clip about basic math skills. Students work in groups on an exploration about why a binomial squared equals a perfect...
Curated OER
A Tale of Two Stories
Students develop their classification and math skills using the stories "The Three Little Pigs" (Galdone 1970) and "Cinderella" (Grimm and Grimm 1981). They compare the two stories using venn diagrams, simple maps, and problem solving.
Shodor Education Foundation
Algorithm Discovery with Venn Diagrams
Here is a lesson that takes an interesting approach to analyzing data using box and whisker plots. By using an applet that dynamically generates Venn diagrams, the class forms a strategy/algorithm for guessing the rule that fits the...
West Contra Costa Unified School District
Investigating Special Right Triangles
Scholars first investigate relationships in the side lengths of 30°-60°-90° triangles and 45°-45°-90° triangles. This knowledge then helps them solve problems later in the lesson about special right triangles.
Shodor Education Foundation
InteGreat
Hands-on investigation of Riemann sums becomes possible without intensive arithmetic gymnastics with this interactive lesson plan. Learners manipulate online graphing tools to develop and test theories about right, left, and midpoint...
PBS
Patterns to the Rescue!
Track down the Cyberchase episode that this lesson is associated with. Using a worksheet that is embedded in the plan, learners must find the next two numbers and shapes (a double pattern). Once these have been discovered, pupils try...
Curated OER
NIGHT AND DAY: DAILY CYCLES IN SOLAR RADIATION
Students examine how Earth's rotation causes daily cycles in solar energy using a microset of satellite data to investigate the Earth's daily radiation budget and locating map locations using latitude and longitude coordinates.
Curated OER
Finding The Area Of Shapes
Fourth graders investigate the concept of computing the area using different shapes. They use prior knowledge in order to devise a formula for a parallelogram. Scaffolding is provided by the teacher to find the formula of area for...
Curated OER
Table Settings
Fifth graders explore and examine how to make organized lists and find patterns to help them solve problems. They identify, analyze and determine a rule for predicting and extending numerical patterns involving operations of whole...
Utah Education Network (UEN)
It's All Just Similar to Me
Middle schoolers explore the concept of similar figures. In this similar figures lesson, pupils calculate scale factors of similar triangles. They find missing sides of triangles, and measure angles using protractors and measure sides of...
Curated OER
Graphs and Data
Students investigate poverty using graphs. In this algebra instructional activity, students collect data on the effects of poverty and use different rules to analyze the data. They graph and use the trapezoid rule to interpret the data.
Curated OER
What's Shaking? Three-Lesson Unit
Your young architects use the Internet to research tall structures or sky scrapers to help in the design of their scale drawings. This is instructional activity one of three in which learners design, build, and test model skyscrapers for...
Curated OER
Data
Learners collect data from an experiment they perform. In this data lesson, students use multiple representations to solve practical problems; describe advantages and disadvantages of the use of each representation. Then, they evaluate...
Curated OER
Property Lists for Quadrilaterals
Students establish classifications of shapes by various properties (angles, sides, etc.). They introduce the important properties of common shapes. Students develop an awareness of the wide variety of ways the 2-D shapes can be alike.