Curated OER
Pythagorean Theorem
Reinforce the use of the Pythagorean theorem with this problem solving instructional activity. Middle schoolers use the Pythagorean theorem to solve word problems. They work in pairs to find the answers to the problems, and then explain...
Curated OER
St. Patrick’s Day
Combine math, creative writing, and leprechauns in a fun St. Patrick's Day activity! Using a bag of gold coins and marshmallows, kids write a math story about a leprechaun that includes a multi-step equation to solve.
EngageNY
Modeling with Inverse Trigonometric Functions 2
Use inverse trigonometric functions to work with ramps, rabbits, and Talladega. The class models real-world situations with trigonometric functions and solves them using inverses in the 15th installment of a 16-part series. Pupils solve...
Virginia Department of Education 
Radical Equations
Provide students with the skill for how to examine algebraic and graphical approaches to solving radical equations. Learners solve various radical equations involving square root and cube root expressions. They first solve...
Mathematics Assessment Project
Solving Quadratic Equations
Scholars first complete an individual assignment using a quadratic equation to model the movement of a bus around a corner. Learners then discuss their solutions with classmates and analyze the provided sample responses.
EngageNY
Percent Increase and Decrease
Increase the percent of pupils that are fluent in solving change problems with an activity that asks class members to look at problems that involve either increases or decreases and to express the change in terms of the percent of...
Kenan Fellows
Isotopic Pennies
Many people confuse atomic mass and atomic numbers. The sixth of seven lessons in a unit requires scholars to find the weight of different groups of pennies. Then, they must solve how many of each type of penny exists in a closed system...
EngageNY
Fluency with Percents
Pupils build confidence working with percents as they work several types of percent problems to increase their fluency. The resource contains two sets of problems specifically designed to build efficiency in finding solutions of basic...
EngageNY
Finding One Hundred Percent Given Another Percent
Class members solve problems to find the whole when given a percent. They  use double line numbers and factors of hundred to help break the 100 percent into equal segments. 
EngageNY
One-Step Equations—Addition and Subtraction
Just one step is all you need to find success in solving equations. The 27th installment in a series of 36 teaches how to solve one-step equations involving addition and subtraction. Tape diagrams help future mathematicians in this task.
EngageNY
A Focus on Square Roots
Pupils learn to solve square root equations and rationalize denominators. Problems include those with extraneous solutions. 
iCivics
Step 4: Consider the Context
Have you ever noticed how deep the roots of a tree or plant stretch? Scholars analyze the context of an issue and the root causes that go to the base of the problem. The fourth step of a 10-part County Solutions - High School unit shares...
Learning for Justice
Marian Wright Edelman
Marian Wright Edelman's 2014 Commencement Speech at Lewis and Clark College serves to inspire young scholars to investigate a problem in their community, to determine why the problem is important, and then to develop a plan for one thing...
WE Charity
Elementary–Module 1: Sustainable Innovation
Where would society be without the innovations of Thomas Edison or Steve Jobs? Scholars explore what it means to have an innovative mindset. Working in small groups, pupils design a product or service to help solve a social,...
Curated OER
Solving Equations Using Models
Explore mathematics by analyzing images. As they view pictures on the SMART Board, individuals must write corresponding algebraic equations. They utilize models to visualize the math expressions.
California Mathematics Project
For the Birds
It turns out math IS for the birds! Here, learners use mathematical reasoning to determine how often someone needs to fill a bird feeder. The rate the feeder empties varies by the number of holes that are available to the birds. Day two...
Nemours KidsHealth
Conflict Resolution: Grades 9-12
Conflicts happen. Learning to deal with them positively, manage anger, and communicate feelings is the focus of a lesson that gives high schoolers the tools they need for conflict resolution. After reading a series of related articles,...
Virginia Department of Education 
Modeling Division of Fractions
Provide a meaningful context for learning about the division of fractions with this upper-elementary math lesson. Presented with a simple, real-world problem, young mathematicians work in small groups to develop visual models...
EngageNY
Paraphrasing Quotes and Analyzing Visual Elements, Part 3: Investigating the Scientific Method with Max Axiom Super Scientist
Come again? Scholars repeat actions taken in the last two lessons using section 3 of Investigating the Scientific Method with Max Axiom Super Scientist. They first read the section to determine the gist and then carry out a second read...
EngageNY
Paraphrasing Quotes and Analyzing Visual Elements: Investigating the Scientific Method with Max Axiom Super Scientist
Pay close attention. Learners discuss the things close readers do and record them in a chart. They then silently reading section 1 of Investigating the Scientific Method wit Max Axiom Super Scientist and write the gist of the text in...
Curated OER
Lesson 2 Solving y=mx+b systems
Students solve linear systems using slope intercept form. In this algebra lesson, students solve equations by rewriting them in the form y = mx + b. They evaluate coordinate pairs to see if they are a solution to the problem. Students...
EngageNY
Nature of Solutions of a System of Linear Equations
If at first you cannot graph, substitute. The instructional activity introduces the substitution method as a way to solve linear systems if the point of intersection is hard to determine from a graph. The 28th installment of a 33-part...
K20 LEARN
Introduction to Expository Writing
Move beyond the five-paragraph essay with a instructional activity introducing young writers to various forms of expository writing. Class members examine description, cause and effect, problem solution, sequence, and comparison forms....
Curated OER
How the West Was One - Three x Four
While this lesson provides a motivating and interesting way to review the concept of the order of operations, it involves the use of software called How the West Was One + Three x Four. There are also other resources that are referenced,...
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