Lesson Plan
Curated OER

Landfills and the Potential for Groundwater Contamination

For Teachers 7th - 8th
Students examine how a sanitary landfill is constructed, how it functions, and how waste and leachate affects the areas around the landfill. After a discussion about landfills and leachates, students construct a Sanitary Landfill Model...
Lesson Plan
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Peter's String

For Teachers 4th - 6th
Students are introduced to the math problem and consider how they could approach it. In pairs, students investigate Peter's conjecture in any way they see fit. They then share their answers with the class.
Lesson Plan
Pennsylvania Department of Education

Using Expressions and Equations

For Teachers 6th
Sixth graders analyze expressions and equations. In this algebra lesson, 6th graders write algebraic sentences and solve for an unknown in a one-step equation. This lesson uses the formulas for the perimeter of a square and rectangle as...
Interactive
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Area Post Test

For Students 6th - 7th
In this area worksheet, students complete a ten question multiple choice test by finding the area of various geometric figures. This is an interactive worksheet.
Lesson Plan
Curated OER

Solving Problems Using Quadratic Equations

For Teachers 9th - 11th
In this quadratic equation worksheet, students read short statements and write a quadratic equation to represent the statement. Afterwards, they solve the quadratic equation using factorization. Twelve problems are provided on this...
Worksheet
Curated OER

Working with Rates

For Students 9th - 12th
In this working with rates worksheet, students solve 9 problems where they find the rates, they solve 5 problems where they find the rates for compound units and they solve 5 problems where they find the rates using scientific notation.
Organizer
Curated OER

Illustrating Equations Worksheet

For Students 7th - 10th
Represent 10 algebraic equations using algebra tiles using this hands-on activity sheet.  Your class will solve 10 algebraic equations using the algebra tiles.
Worksheet
Curated OER

HD TV Problem

For Students 9th - 10th
In this algebra instructional activity, learners calculate the viewing area of each TV. They calculate the horizontal and vertical lengths. There is an answer key with this word problem.
Worksheet
Curated OER

LRO's First Image of Mare Nubium

For Students 8th - 10th
In this scale image worksheet, students use an image taken by the LRO satellite of Mare Nubium to determine the scale of the image, the diameter of the smallest crater and a comparison scale drawing of a house.
Worksheet
Curated OER

Ordered Pairs Problem

For Students 9th - 11th
In this algebra worksheet, students find the ordered pair of integers that will make an equation a true statement. There is an answer key.
Worksheet
Curated OER

Dividing Fractions

For Students 9th - 11th
In this Algebra I/Algebra II learning exercise, students multiply and divide algebraic fractions.  The one page learning exercise contains four free response questions.  Answers are included. 
Worksheet
Curated OER

Multiply One-Digits

For Students 2nd - 3rd Standards
For this finding the products worksheet, students multiply one-digit times one-digit numbers to solve. Students solve 35 problems.
Worksheet
Curated OER

SAT Grid Ins Practice Test 09

For Students 9th - 12th
In this SAT practice activity, high schoolers solve 10 grid in problems.  Students find surface area, slope, mean, factors, etc.
Lesson Plan
Curated OER

Similarity

For Teachers 9th - 10th
Learners find the factor of proportionality in similar polygons. In this similarity of polygons lesson plan, students measure the sides and angles of polygons and derive a factor of proportionality between corresponding pairs of sides...
Worksheet
Curated OER

Sudoku Puzzle: Definite Integrals

For Students 10th - Higher Ed
In this Sudoku worksheet, students first solve 36 definite integral problems and then place them into the puzzle.  The remainder of the Sudoku is left to solve.
Worksheet
Curated OER

Geometric Concepts and Polygons

For Students 9th - 11th
In this geometry activity, students identify the altitude, perpendicular bisector, median, angle bisector and the area of different polygons. There are 33 problems.
Lesson Plan
Curated OER

Probability of an event Occurring

For Teachers 11th
In this probability worksheet, 11th graders calculate what the probability of the color of shirt someone is wearing is. There is a solution key with this problem.
Worksheet
Curated OER

Infinite Geometric Series

For Students 11th
In this infinite geometric series worksheet, 11th graders solve and complete 33 various types of problems. First, they find the sum of the infinite geometric series for each of the given. Then, students find the range of values for each...
Worksheet
Curated OER

CME Kinetic Energy and Mass

For Students 9th - 12th
In this kinetic energy and mass activity, students read about coronal mass ejections detected by the SOHO satellite. Students complete a data table that shows the relationship between kinetic energy, speed and mass. They convert the...
Worksheet
Curated OER

Put Patterns to Work for You!

For Students 5th - 10th
In this patterns worksheet, students complete multiplication charts and division problems to solve pattern problems. Students complete 11 problems total.
Worksheet
Curated OER

Compound Inequalities

For Students 11th
In this algebra worksheet, 11th graders solve compound inequalities and graph their solution on a number line. There are 6 questions with an answer key.
Worksheet
Curated OER

The Ten Numbers Problem

For Students 9th - 10th
In this algebra worksheet, students are asked to use algebra to solve a word problem. They place numbers from 1-10 on a grid without having consecutive numbers touching. There is an answer key.
Worksheet
Curated OER

Algebra I - Worksheet G12: Graphing Lines

For Students 9th - 12th
In this graphing lines worksheet, high schoolers graph 28 lines given various data.  Students graph lines given two points, a point and slope, and a line perpendicular or parallel to a point.
Worksheet
Curated OER

SAT Problem Solving Practice Test 06

For Students 9th - 12th
In this SAT worksheet, students solve 10 multiple choice questions.  Students find ratios, integer relationships, prime numbers, etc.