Curated OER
Number Line Math
Second graders use a number line to practice subtraction. For this subtraction lesson, 2nd graders use a number line to count backwards. Students participate in mad math activities and solve problems.
Curated OER
Math: Methods of Measurement
Fourth graders practice linear measurement skills by applying various measuring instruments to determine the heights of classmates. By measuring the heights of second graders and fourth graders, they construct tables of height and age...
Curated OER
Constructions and Loci
In this constructions and loci learning exercise, students mentally calculate subtraction, addition and division problems. This two-page learning exercise contains 30 problems. Answers are provided.
Curated OER
Math/Technology: Height Measurement
Third graders, using technology tools, determine the total height of their classmates in both inches and centimeters. Once the measurements are taken, they enter the results in the Excel file. Once students have prepared a KidPix number...
Curated OER
Math: Checking Scale Drawings for Accuracy
Students critique their own drawings for accuracy and make constructive suggestions prior to reworking them. They discover how scale in maps and drawing relate to relative size and distance. In addition, students comprehend the...
Corbett Maths
Loci Part 3
How do you use a scale drawing to find the region in a lake where a treasure is located? The narrator of a short video problem identifies three criteria to determine the location of the treasure. Using a compass and ruler, he determines...
Curated OER
Real-World Applications to Imaginary and Complex Numbers
Authenticate imaginary numbers through real-life applications in science, math, and literature.
Curated OER
The Geometry Of An Ox Skin
High schoolers investigate the concepts of area and perimeter. The activity uses a legend to create a context for the proposed word problem. They use the skill of estimation in order to create an ox skin that is found in the story.
PreKinders
Snowflake Pattern Block Mat
Add a touch of winter flair to geometry practice with a pattern block mat shaped as a snowflake. Preschoolers and kindergartners can work on both shape recognition and pattern identification as they form beautiful snowflakes.
Shodor Education Foundation
Experimental Probability
Spin into a dicey experiment. Pupils use a spinner or a pair of dice to determine the experimental probabilities of each outcome. The interactive allows for either, one, five, or ten consecutive experiments. Using the applet, learners...
Scholastic
Making the Times Table Mini-Books
What do you get when you combine your traditional times table worksheet with cute worm characters? A fun mini-book that youngsters can enjoy and that will help them practice multiplying by one!
West Contra Costa Unified School District
Introduction to Conditional Probability
Here is a turnkey instructional activity that walks young statisticians through the development and uses of conditional probability. From dice games to surveys, Venn diagrams to frequency tables, the class learns how a given can effect...
Mathematics Assessment Project
Circles and Squares
Squares, and circles ... and squares, and more circles. In this high school assessment task, pupils investigate the ratio of areas of two squares that are circumscribed and inscribed in a circle. They then determine the ratio of the area...
West Contra Costa Unified School District
Law of Sines
One must obey the sine laws. A lesson introduces and derives the Law of Sines for non-right triangles. With examples that use the Law of Sines to determine unknown measures in triangles, the lesson checks to see if the Law of Sines also...
Mathematics Assessment Project
Smoothie Box
Pupils demonstrate their understanding of nets by designing a net of a box that contains 12 bottles. Given the full size top and side views of the bottle, they determine the dimensions needed for the finished box. The directions do not...
Mathed Up!
Two Way Tables
When presented with categorical data, a two-way frequency table is a great way to summarize the information. Pupils organize categorical data using a two-way table, then use the tables to determine missing data and to calculate simple...
Girl Scouts
Daisy Making Choices Leaf
Shed light on the concept of financial literacy with a series of four activities that examines needs vs. wants, gives scholars the opportunity to buy products using paper money, and set goals to save money.
02 x 02 Worksheets
Slope
What does slope have to do with lines? Pupils work with lines and determine the slope of the lines informally and with the slope formula. Groups use their knowledge to calculate the slopes of parallel and perpendicular lines. They also...
CK-12 Foundation
Venn Diagrams: T-Shirt Mystery
Sorting your t-shirts is easy with Venn diagrams. Individuals use a drag and drop interactive to classify shapes on t-shirts into Venn diagrams. A set of challenge questions tests whether the classification is correct.
CK-12 Foundation
Understand and Create Histograms: Histograms
Determine the shape of weight. Using the interactive, class members build a histogram displaying weight ranges collected in a P.E. class. Scholars describe the shape of the histogram and determine which measure of central tendency to use...
GeoGebra
Triangle Dilations
Stretch the class' knowledge of dilations. With the aid of the rubber band stretcher tool, learners perform dilations. They dilate the triangle by a whole number scale and a fractional scale from two centers of dilation.
National Council of Teachers of Mathematics
Over the Hill
Can you hear me from there? Pupils determine the place to build a cell tower on a hill. The class uses constraints and creates a scale drawing on a coordinate system to calculate the exact location of the base of the cell tower.
K20 LEARN
Chicken Truck: Writing Algebraic Expressions
How did the chicken travel down the road? Given a picture of a chicken truck, class members brainstorm what information they need to determine the total number of chickens on the truck. Pupils research for the information and devise a...
Corbett Maths
Enlargements Using Ray Method
Figure out what to do when there is no grid to count. Using a ruler and a sharp pencil, the narrator shows how to perform a dilation when the figure is not on a grid. The ray method works by drawing a ray from the center of dilation...
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