Curated OER
Polygonal Strings
Sixth graders apply knowledge of how to calculate the area and perimeter of triangles. They determine why it is inappropriate to measure the area of land by its perimeter which is done in certain areas of New Guinea. They complete a...
Curated OER
Call Me
Learners write essays to persuade their families to use a particular long-distance phone plan. They compare a 10-10 plan to a regular long-distance plan.
Curated OER
Newton's Third Law and Aircraft Propulsion
Students research propulsion, graph data, and interpret the results.
Curated OER
Impossible Graphs
Learners distinguish between possible and impossible graphs of functions, and to learn why some graphs are impossible. They have practiced plotting functions on the Cartesian coordinate plane
Curated OER
Pizza Toppings 2
Students explore possible combinations of items. They devise and use problem solving strategies to explore situations mathematically. They examine using linear and quadratic patterns to solve combination problems. From a given...
Curated OER
Number Line Math
Second graders use a number line to practice subtraction. In this subtraction lesson, 2nd graders use a number line to count backwards. Students participate in mad math activities and solve problems.
Curated OER
Flow Rates of Faucets and Rivers
Students work together to discover the flow rates of faucets and rivers. They relate their results to engineering and applied science concepts. They make predictions on the flow rate of a nearby river in their local community.
Curated OER
Missed The Boat
Learners complete time and distance problems. Using appropriate problem solving strategies, students determine when a helicopter will catch a cruise ship. Learners write a summary of their solution process. They complete a graph to...
Pennsylvania Department of Education
Seeing Doubles
Pupils work with dominoes to recognize the number of spots on each side as they relate to addition facts. In this seeing doubles instructional activity, students make triangle shaped flash cards for the double facts. Pupils represent the...
Curated OER
Wind Tunnel Aerodynamics Problem Set
Students, after reading an explanation from a NASA Web-based textbook, demonstrate an understanding of the text by applying it to the calculation of area, velocity, and pressure in a wind tunnel.
Curated OER
Complexity
Students perform mathematical operations on complex numbers. After a lecture/demo, students utilize a worksheet imbedded in this plan to gain practice performing operations on complex numbers.
Curated OER
Investigating Motion
Learners determine velocity using the slope of a time distance graph. They investigate a motion cart using a CBR unit and a TI 83 calculator setup. Using the graph generated, they calculate velocity.
Curated OER
Virtual Field Trip/ Gasoline Cost
Students complete a word problem to determine the cost of gasoline per mile of their virtual field trip. They determine the travel time and gasoline costs for two routes and record the information on a data sheet. They check their work...
Curated OER
Growing a Garden
Students research aspects of gardening including nutrition, costs, and soil preparation. They then write a report detailing the planning of the garden and compare costs to buying the items.
Paul Dawkins
Paul's Online Notes: Algebra: Systems of Equations
Learners examine how to solve systems of equations. Topics investigated are linear systems with two variables, linear systems with three variables, augmented matrices, and nonlinear systems. Class notes, definitions, and examples with...
Texas Education Agency
Texas Gateway: Solving Systems of Equations With Graphs
Given verbal and/or algebraic descriptions of situations involving systems of linear equations, the student will solve the system of equations using graphs. Incorporates GeoGebra applets.
Khan Academy
Khan Academy: Algebra I: Systems of Equations: Age Word Problems
Solve age word problems with a system of equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Algebra: Equivalent Systems of Equations
Determine whether a couple of given systems of equations are equivalent or not to a third given system. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Number of Solutions to a System of Equations Algebraically
Determine the number of solutions of a given system of equations by considering its algebraic solution process. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Algebra I: Equivalent Systems of Equations Review
Two systems of equations are equivalent if they have the same solution(s). This article reviews how to tell if two systems are equivalent. Examples are provided.
Khan Academy
Khan Academy: Check Solutions to Systems of Equations
In this exercise, students check solutions to systems of equations. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Systems of Equations Word Problems Capstone
Solve word problems that involve systems of equations, where there can either be a single solution, no solution, or infinite solutions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
Khan Academy
Khan Academy: Systems of Equations Word Problems
Solve word problems by modeling them into a system of equations and solving it. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Number of Solutions to a System of Equations Graphically
Determine the number of solutions of a given system of equations by considering its graph. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.