Curated OER
Add or Subtract Whole Numbers Up to 1000
Elementary schoolers solve practice problems on the board and are shown how to line up the numbers for addition. They solve various addition problems in small groups. Everyone continues the same process for solving subtraction problems.
Curated OER
Fractions: Part of a Whole
Learners add fractions with like denominators. They add using both fraction strips and numbers. Next, they look at mixed numbers and improper fractions that result from the addition process. This is a good way to understand fractions...
EngageNY
Fraction Equivalence, Ordering, and Operations
Need a unit to teach fractions to fourth graders? Look no further than this well-developed and thorough set of lessons that takes teachers through all steps of planning, implementing, and assessing their lessons. Divided into eight...
Curated OER
THE FEDERAL CONFIRMATION PROCESS: CHOOSING THE RIGHT PERSON FOR THE JOB
Students analyze the process whereby presidential appointees are confirmed.
Curated OER
Adding and Subtracting Decimals
The addition and subtraction of decimals is a relatively simple process. The most important thing to remember is to have all of the decimal points lined up. This presentation gives that strategy, plus some others to use when performing...
Curated OER
Integer
Seventh graders examine the characteristics of an integer. As a class, they observe a number line and recognize opposite numbers. Algebra tiles, or counters, are used to explore the concept of adding integers. In groups, 7th graders play...
Curated OER
Add and Subtract Equations
One of these addition number sentences is incorrect: which one is it? Beginning mathematicians examine two simple equations, circling the one that is correct. An explanation on the bottom walks them through the processing, including...
Curated OER
Animation Pre-Production
Does your class love reading cartoons? Use their talents and interests to examine the process of writing a story they wish to tell through a cartoon. They develop the beginning, middle, and end of a story based on their original...
Curated OER
Integer War
Sometimes all it takes for a good review is a game of cards. Review the processes needed to add, subtract, divide, and multiply integers. In groups, learners play the card game war with a twist. They can use the numbers as either...
Curated OER
Pipe Cleaner Sculpture
Learners of any age can make the most out of their pipe cleaners. This art project idea is very simple and yet, it could result in some amazing works of art. They use pipe cleaners, flat styrofoam, straws, pasta, and beads to create...
Illustrative Mathematics
Cynthia's Perfect Punch
Using a real-world example, this problem illustrates the thought process that learners need to engage in to understand adding mixed numbers with common denominators. First by looking at estimation, and then by drawing models that...
Curated OER
Three-Digit Number: Hundreds Place
Looking at the image of two sets of base ten blocks, learners determine which represents the number shown. This process is fully explained just below the problem. Use for review or extra practice.
Curated OER
Multiplication of Whole Numbers
Rather than simply have your scholars memorize multiplication facts, be sure they understand the process behind each equation. There are four arrays of objects here; mathematicians write a multiplication sentence for each. Next, they...
Curated OER
Gasoline Additive
Chemists consider a situation in which an ethanol producer needs to determine how much to add to t-butanol to prevent freezing during transport. They work in the laboratory to obtain the freezing point depression constant for the...
Franklin D. Roosevelt Presidential Library & Museum
Practice Passing Laws
Getting a bill through the legislative process to become a law in the United States is a very long and difficult procedure by design! To understand the deliberation, debate, and compromises involved, class members take on the role of...
Institute of Electrical and Electronics Engineers
Blast Off!
With the use of a model rocket kit, aspiring aerospace engineers work cooperatively to construct and launch a rocket. A preparatory reading assignment is included, covering Newton's laws of motion and information about the first...
EngageNY
The Power of Algebra—Finding Primes
Banks are responsible for keeping our financial information safe. Mathematics is what allows them to do just that! Pupils learn the math behind the cryptography that banks rely on. Using polynomial identities, learners reproduce the...
CK-12 Foundation
Ballistics Tests
How did scientists measure the speed of incredibly fast things before the invention of high-speed photography? Scholars virtually perform ballistics tests to discover the process. They control the rifle type, bullet mass, and target...
CK-12 Foundation
Electric Analogies
We can see the result of electricity but not the process itself. The simulation compares electric circuits to a water tower and water wheel cycle. Young scientists adjust the height of the tower, the amount of resistance, and if the...
Concord Consortium
Systematic Solution II
Up the difficulty level by solving a system of equations with variable coefficients. Young scholars devise a plan to solve for x and y in terms of a and b. They represent their solutions as expressions and explain their process and the...
Corbett Maths
Adding Algebraic Fractions
The process requires the combination of several concepts. A video shows how individuals need several concepts to add rational expressions. Pupils must remember they need to find common denominators, combine like terms, and use the...
CK-12 Foundation
Add and Subtract Decimals with Front-End Estimation: Wooden Beams
A six-question interactive tasks mathematicians to solve addition and subtraction problems using front-end estimation. Question types consist of multiple-choice and true or false. A set of wooden beams that can be measured using moveable...
Facing History and Ourselves
Insights on Democracy from South Africa
As part of their study of democracy, high schoolers listen to a podcast featuring two South African educators and their efforts to support the process of transforming the nation from apartheid rule into a democracy. Learners also read...
University of Colorado
Solving a Mixed Up Problem
Begin the process of adding and subtracting spectra. Having a basic understanding of occultation events, pupils begin the pursuit to determine what a found atmosphere might contain. Learners work with two graphs and calculate what the...