Discovery Education
Sonar & Echolocation
A well-designed, comprehensive, and attractive slide show supports direct instruction on how sonar and echolocation work. Contained within the slides are links to interactive websites and instructions for using apps on a mobile device to...
Curated OER
Properties of Fractals
Students build a working definition of regular fractal, look carefully at the concepts of dimension and scale, and are introduced to logarithms. They solve simple exponential equations for the exponent both by trial and error and using...
Curated OER
Properties of Fractals
Students build a working definition of a regular fractal, they measure the concepts of dimensions and scale, they explore the concept of a logarithm and they attempt to solve simple exponential equations for the exponent both by trial...
Curated OER
Completing the Square Lesson Plan
Students investigate the origin of the quadratic function. In this algebra lesson, students analyze solving an equation by completing the square. They compare the early methods as compared to our method for solving quadratics.
Curated OER
Calculating Your Travel GHGs
Young scholars calculate the amount of greenhouse gases they produce in a given day. Using an equation, they determine the emissions for different sized vehicles and calculate the amount resulting from a family vacation. They create a...
Curated OER
How Many Months?
Students investigate the first Peter the Mint Eagle, who lived at the Philadelphia Mint from 1830 to 1836. They determine how many months Peter was there and use pictures, numbers, equations, and/or words to explain how they came up with...
Curated OER
Choices
This unit is about making calculations in the real life situations of taxis, hire cars, and cell phones. They find and justify a word formula which represents a given practical situation. Solve simple linear equations such as 2? + 4 = 16.
Curated OER
Balloon Fiesta
Students participate in a math activity that reinforces basic fact strategies including counting on from a greater number. They interact with pictures of hot-air balloons and discuss word and sentence equations that deal with how many...
Curated OER
Lines, Rays, Line Segments, and Planes
Students are introduced to lines, rays, line segments and planes and study the differences between them. They also practice graphing lines, rays, line segments and planes
Curated OER
Representing the Unknown
Second graders solve number sentences and examine how to apply basic operations of mathematics to those problems. They also use symbols to represent unknown numbers and how they are used in equations.
Curated OER
Slopes, Distances, and Map Keys
Students explore Rise and Run. In this math instructional activity, students use Rise and Run to find given slopes, they will use the slopes to calculate distances from point to point on graph paper.
Curated OER
Making Rectangles
Learners study rectangles. In this math instructional activity, students use numbers, measurements and geometry to draw rectangles of varying sizes.
Curated OER
Navigating by the Numbers
Students observe how math is important in navigation and engineering. They study how surveyors use math and science to calcute, count, measure, label, and indicate distances on a map. They estimate specific distances.
Curated OER
Forces and Graphing
Students analyze graphs to determine relationships between variables and rates of change. They determine the basic concepts about static reaction forces. They determine the slope and equation of a line.
Teach Engineering
The Challenge Question
A research position becomes a modeling job. The introductory lesson in a series of nine presents the challenge of analyzing a set of bivariate data. The class brainstorms what the data may represent. Pupils must decide what is needed to...
Teach Engineering
Airplane Tails and Wings: Are You in Control?
Keep everything under control. The lesson, the 16th segment in a 22-part unit, provides a more detailed look at the parts of a plane, specifically the control surfaces. Pupils learn about the construction of the wings and the tails and...
Teach Engineering
Microfluidic Devices and Flow Rate
When you have to flow, you have to flow. The lesson introduces class members to microfluidic devices and their uses in medicine. They watch a short video on how the diameter affects the rate of flow. The worksheet has individuals...
Curated OER
Horizontal parabolas
In this horizontal parabola worksheet, students draw the graph for the horizontal parabola given to them. Students complete 10 problems.
Curated OER
Ratio and Proportion: Write and Interpret
In this ratio and proportion worksheet, learners explore example problems. Afterwards, they read story problems and use ratios and proportions to find the solution. This three-page worksheet contains six multi-step problems,
Curated OER
The Corner Problem
Students explore the concept of the corner problem. In this corner problem lesson, students use the TI-NSpire to determine the maximum length a rod can be and still pass horizontally around a corner. Students use similar triangles to...
Curated OER
Vertical Tower
In this trigonometry worksheet, 11th graders are given a tower built by different angles and asked to prove the sides are true using the theorems of trig angles. There are 3 questions with an answer key.
Curated OER
Vertical Tower 2
For this trigonometry worksheet, students prove that for the given conditions of the problem that cos y = cos2 x. The one page worksheet contains one problem with the solution.
Curated OER
Polynomial Divisions
Pupils factor polynomials and use long division t solve problems. In this algebra lesson, students find the zeros of polynomials by synthetic and long division. They perform operation using complex numbers.
Curated OER
Properties of Logarithmic Functions
Students solve exponential functions. In this algebra lesson, students identify the properties of logarithmic and exponential functions. They graph their functions and solve using change of base formula.