Curated OER
You Can Count on Squares!
Fourth graders engage in and explore to develop mathematical, specifically algebraic, ideas. Although the tasks are built around measurement, they are algebraic to the extent that they require 'formulae' to be derived form the geometric...
Curated OER
Robots
Fourth graders devise and use problem solving strategies to explore situations mathematically (guess and check, make a drawing, use equipment). The use of logical reasoning is a focus of this lesson.
Curated OER
Make the Highest Total
Sixth graders predict the outcome of a simple probability experiment, test it and explain the result by using problem solving strategies to explore situations mathematically. They then play a few games informally where students play in...
Curated OER
Square Pegs in Round Holes
Sixth graders problem solve the square peg in the round whole problem by applying knowledge of the formulas for the areas of the circle and the square. They decide on a problem solving strategy based on logical reasoning.
Curated OER
Discovery
Students explore patterns in number problems. They devise a strategy to solve a number problem. Students estimate and calculate answers, making efficient use of a calculator, where appropriate, as part of solving a problem. They...
Curated OER
Decimals: Collaborative Lesson
Learners explore mathematics by participating in a group activity. In this number value lesson, students identify the uses for decimals and how to best estimate whole numbers based on decimals and fractions. Learners collaborate with...
Curated OER
Smart Doubling
Second graders use mental math in calculations involving addition and subtraction. They study doubles facts to work out addition problems mentally using part and or whole reasoning.
Curated OER
Habitats: Rainforest
Students use the internet to find reasons the rainforest is endangered and ways that affects the rest of the world. They read for information, perform experiments, locate rainforests on maps, and write about this ecosystem.
Curated OER
Geometry Digital Blogging Books
Students observe geometric shapes in their everyday lives. In this middle school/high school mathematics instructional activity, students use their cell phone to record and publish their observations about the geometric shapes they...
Curated OER
Math: Shapes and More Shapes
Students locate lines of symmetry in regular polygons and predict the number of lines of symmetry in an octagon. In three different polygons, they construct all lines of symmetry and after making their prediction about the octagon,...
Curated OER
Rabbits
Students review what they think doubling means and double numbers mentally, for example, 5, 12, 16. They share their solutions and discuss how they doubled. They work together on a problem that is beyond mental working and solve...
Curated OER
Cancer City USA
High schoolers investigate a phenomenon known as the cancer cluster. Students determine potential cancer clusters given real data and support their findings using mathematical calculations. High schoolers Create a graphical...
Curated OER
Geometry in the Constellations: The ER-2
Students discuss reasons to record the location of stars. They view a picture of the night sky, and discuss constellations. Students complete a worksheet of the various shapes they see in the constellations.
Curated OER
Reopen: A Study of Five Closed Mines
Students analyze data to determine which of the fived closed mines would be beneficial to have reopen. They acquire knowledge of rocks and minerals in the area to give reasons why that mine should open again. Students gain knowledge in...
Curated OER
Wings and Othe Things
Students work in groups that are engaged in different activities at different times. They watch the video "Madagascar" and collect data pertaining to the Fish Eagle's arm spam. They work together to perform mathematical computations...
Curated OER
Hogs on a Diet
Students discuss the meaning of "hogging" something, and speculate on the origin of this phrase. They attempt to guess the contents of a shoe box (without looking inside). Students view feed grains and discuss animals that eat these...
Curated OER
The Part-adder 1
Second graders investigate the addition of whole numbers. They mentally perform calculations involving addition and subtraction. They make sensible estimates and check the reasonableness of answers.
Curated OER
Fifty Toes
Young scholars guess the subject of the given problem by reasoning. Then they discuss the ways that the problem could be solved by keeping track of their counting in 10s and showing their work.
Curated OER
The Take-Awar Bar 1
Students use an Internet tool, "The Take-Away Bar" to solve subtraction problems by breaking them into parts. They write and solve comparison problems. Students make sensible estimates and check the reasonableness of answers. They use...
Curated OER
Earth From Space
Students watch a series of programs from NASA titled "Earth From Space". After viewing the program, they identify ways NASA is researching the reasons why the Earth is changing. They discuss the various levels of the atmosphere and...
Curated OER
GDP and Standard of Living
Seventh graders discuss the GDP and Middle Eastern nations. In this standard of living lesson, 7th graders complete a worksheet during a lecture on the GDP. Students identify the impact of the GDP on a country and reasons for wanting to...
EngageNY
Describing the Center of a Distribution Using the Median
Find the point that splits the data. The lesson presents to scholars the definition of the median through a teacher-led discussion. The pupils use data lists and dot plots to determine the median in sets with even and odd number of data...
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
Estimating Centers and Interpreting the Mean as a Balance Point
How do you balance a set of data? Using a ruler and some coins, learners determine whether the balance point is always in the middle. Through class and small group discussions, they find that the mean is the the best estimate of the...
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