Curated OER
Oxidation-Reduction Example Problems
In this reaction worksheet, learners assign the oxidation numbers to all the atoms in the given compounds and ions. Students determine whether an element is oxidized or reduced in the given reactions. This worksheet has 4 problems to solve.
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One to Nine
In this number sentences worksheet, students are given number sentences with just the answers and they are fill in the numbers one to nine only once around the operations. Students complete 6 number sentences in a puzzle.
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Introduction to Fractions Using Cuisenaire Rods
Fifth graders use Cuisenaire rods in order to discover how to represent fractions with real objects. In this lesson on fractions, 5th graders first examine and learn the colors, lengths, and numerical values of each rod; then, students...
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Exploring Peano's Axioms
Students add natural numbers in axioms to prove addition theorems. In this axiom lesson plan, students add 3 + 4 to make the number 7.
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Compatible numbers to 20
Pupils practice theories dealing with equals sign used as a balance, inequality symbols and practice utilizing a box or some other geometric shape to represent an unknown number. They assess numeracy problems embedded in language-rick...
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Dollar Word
Students review the value of coins prior to adding up values to equal one dollar. Letters of the alphabet are assigned monetary values and students use calculators to add up the value of a word. Students work with a partner to try and...
Teach Engineering
Discovering Phi: The Golden Ratio
Fe, phi, fo, fum. This activity leads pairs to find the ratio of consecutive terms of the Fibonacci sequence. The pairs find that the Fibonacci sequence can be found in many places. A discussion with the class shows that the ratios found...
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Subtraction With Integers
This thorough introduction to the concept of subtracting negative integers walk learners through the necessary steps using teacher modeling and guided practice. Number lines and various word problems are used to support understanding of...
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Fractions Everyday
Students investigate fractions through interactive videos and hands-on activities and class made models.
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Up and Atom
"Up and Atom" is a mini-unit introducing middle-schoolers to the wonders of elements. Participants draw atom models, examine the periodic table, compare samples of metals to nonmetals, identify unknown elements, and more! The beginning...
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UP AND ATOM
If you are willing to sort through this outline and overlook the portions relating to inaccessible videos, you will find a wealth of support for your introductory chemistry unit. Narrative is presented to help you help learners navigate...
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Slicing Up Fractions
Add and multiply fractions with your elementary and middle schoolers! They review the concepts of equivalent fractions, adding fractions, and multiplying fractions as they solve problems involving pieces a virtual pizza. Lots of practice...
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Operations on Matrices
A guided lesson using the WolframAlpha computer program. The class explores the basic operations of adding, subtracting, multiplying and dividing matrices to solve problems.
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Number Sense and Numeration
Students add and subtract integers. In this algebra lesson, students discuss number sense as they sort numbers in the correct order. They analyze and label numbers differentiating between rational and irrational numbers.
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Detective Digis and the Computer Caper
Mathematicians participate in an hands-on activity to investigate the binary number system and write messages in binary code and have classmates decipher the messages. A said video on the topic does not seem to be available, but the...
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Math: Greater Than, Less Than, Equals
Elementary schoolers learn about using the symbols for greater than, less than and equal to. They answer nine questions using the information they learned. The answers are on the last page of the packet.
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Handcarts - A Unique Form of Transportation
An interesting historical fact about how handcarts benefitted to the Mormon pioneers is the context behind this math instructional activity. Using given facts and figures regarding the handcart, pupil pairs create math word problems,...
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Addition Problems
Here are 25 simple addition problems, all of which include two addends under six. This is a print-and-go worksheet, and because it has a graphic of a kangaroo, you can reference the kangaroo math page to help learners stay with you....
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Morning Math
Rise and shine, mathematicians! These warm-ups will get your class putting on their thinking caps first thing as they recall past concepts and continue practicing newer ones. The problems are segmented and include concepts such as number...
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Exploring Harmonic Conjugates
High schoolers investigate harmonic conjugates using Cabri Software or the Ti Calculator to analyze harmonics. They explore different angles measurements as they move their circles around and solve problems.
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Number 7
A basic activity in which youngsters trace, write the number, and write the word for the number seven is here for you. Learners complete three problems, and gain good all-around practice in number and letter writing.
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Train Skip Counting: Count by 2s
Skip counting builds number sense and prepares learners for multiplication. Intended for use with Autistic children, but appropriate for anyone, this worksheet provides a way to practice counting by 2s. There are 6 trains, the child...
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Add and Subtract within 20
The sums and differences only reach 20 in this arithmetic worksheet. Scholars answer 10 simple number sentences, some involving two numbers and others with three. They choose the correct answer from a list on the right. There are the...
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Subtraction
Here are 12 basic subtraction facts for your pupils to work on. Each of the problems has a one-digit number subtracted from a two-digit number. This could be used as a homework assignment, in-class task, or as an assessment to see how...