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Curated OER
I'll Halve S'More, Please!
Learners describe a fraction in terms of sharing parts of a whole. They understand the meaning of the parts of a fraction and add and subtract like fractions. They apply fractions to problem situations and recognize and use equivalent...
Ohio Department of Education
Fraction and Decimal Equivalency
Mathematicians make representations of fractional parts of a whole and learn that a decimal is another way to represent a fractional part. Understanding is extended by comparing and ordering fractions and decimals on a number line. This...
Curated OER
Buggin' Out (Identifying and Adding Amounts of Money)
Students explore consumer math by participating in estimate exercises. In this currency lesson, students identify and define each piece of U.S. currency and their value to the monetary system. Students complete several money worksheets...
Curated OER
Apple Kinds to Products
Young scholars become familiar with various kinds of apples and the tree they grow on. For this Apple tree lesson, students recognize the differences between apples and can identify what happens to apples in different...
Illustrative Mathematics
Cynthia's Perfect Punch
Using a real-world example, this problem illustrates the thought process that learners need to engage in to understand adding mixed numbers with common denominators. First by looking at estimation, and then by drawing models that...
Curated OER
Puzzling Perimeters
Third graders use estimation, fractions and decimals to determine the perimeter of objects in the classroom. They are given a worksheet with a list of the items on it. The worksheet has columns beside each of the items for estimation and...
Curated OER
Measuring to the Nearest Inch
Third graders use whole numbers and fractions to make connections between abstractions of the mathematical world and the real world. In this fractions and measurement lesson, 3rd graders identify, quantify groups , and measure distances....
Curated OER
Pea+Nut = Math
Learners utilize peanuts to practice fractions. In this math model lesson, students solve multiplication problems and fractions with real peanuts. Learners use drawing software to graph data from the math equations.
Curated OER
Fraction Models
Third graders make models of fractions and mixed numbers. Using fraction strips and drawing pictures, 3rd graders develop conceptual understanding of the equivalent forms. Students use the number line to represent and compare...
Curated OER
Estimation With Percents
Students examine percents. In this percents lesson, students will estimate percentages. Using advertisements from a newspaper, students problem solve to determine the final price of a sale item.
Curated OER
Is the Price Right?
Students listen to the book, Arthur's Funny Money, then play The Price is Right game to estimate and to chart the price of items to the nearest $1.00 and $10.00. They check their estimates by counting out the actual amount in play money.
Curated OER
The Price is Right, So Let's Make Change
Students estimate, calculate, and count back the amount of change needed from purchases made during small group activities.
Curated OER
Saving Money Through Mathematics
Third graders discuss light sources and collect data about energy sources. They compare data and create a multiple line graph showing energy used by light sources for each student in the group. They present their graphs and write a...
Curated OER
RCX Car Line Graph
Students develop a line graph based on distances that an RCX car drives in specified amounts of time. They then are given a specific amount of time for the car to drive and be asked to extrapolate the car's distance from the graph.
Curated OER
The Basketball Tournament
Young scholars estimate how many games are played if six teams play each other once. They investigate their own way and discuss possible strategies they might use. They then share their findings with the class.
Curated OER
Marshmallows
Third graders estimate the volume and mass of one marshmallow using appropriate standard units. They design and carry out an investigation to find the average of volume/mass of one marshmallow.
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...
Arizona Department of Education
Area and Perimeter of Regular and Irregular Polygons
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other...
Curated OER
Go The Distance Car Construction
Learners build and program a car to drive a specific challenge distance.They must at the end of the lesson, have the car that stops the closest to a challenge distance.
Curated OER
Minnesota-China Connections:What Time Is It?
Students calculate the time difference between Beijing, China and their local community. They discuss how time difference affects intercultural communication.
Curated OER
Goobers. Goobers? Goobers!
Students begin the activity by noting the many ways in which to use peanuts. In groups, they use the internet to research the work of George Washington Carver. They discover the allergies and nutritional information of the peanut and...
Curated OER
The Home Stretch
Students read the novel Stone Fox by John Reynold Gardiner. Using Lego RCX units, students build and program sleds to re-enact the "home stretch" of the National Dog Sled Race.
Curated OER
Wings and Othe Things
Learners 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
A thousand seconds
Students use seconds, minutes, and hours. They then discuss the size of a thousand. After that they read time in digital or analogue form.