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Lesson Planet: Curated OER

#### InteGreat

For Teachers 9th - Higher Ed Standards
Hands-on investigation of Riemann sums becomes possible without intensive arithmetic gymnastics with this interactive lesson plan. Learners manipulate online graphing tools to develop and test theories about right, left, and midpoint...
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#### Number Cube

For Students Pre-K - 2nd Standards
Building a six-sided number cube has never been so easy. Just cut out the figure on the solid lines, fold on the dotted lines, connect the sides together using glue or tape, and there you have it!
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#### Order of Operations Worksheets

For Students 3rd - 8th Standards
Put your red pen down, it's time for your mathematicians to review students' work. Pupils are given one problem that has been solved three different ways to inspect its correctness and explain their thinking using academic language.
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#### Finding Percent of Fractions

For Students 6th Standards
Sixth graders read word problems that involve finding the percent of an item, given the fraction.
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#### Finding Percents

For Students 6th Standards
What is 75% of 200? The answer is 150. These are the types of questions students are prompted to solve, in a worksheet that reinforces finding percents of a number.
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#### Rolle’s Theorem and the Mean Value Theorem

For Teachers 10th - 12th Standards
Using the derivative to apply the Mean Value Theorem and its more specific cousin, Rolle's Theorem, is valuable practice in determining differentiability and continuity on an interval. This presentation and accompanying worksheet walk...
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#### Multiplying Polynomials

For Teachers 8th - 11th Standards
Without ever relying on the FOIL trick, this presentation carefully walks young algebrists through multiplying binomials by a monomial and by each other. Examples start easy, but move into complicated pairings of coefficients, positives...
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#### Polynomial Operations

For Teachers 8th - 11th Standards
This overview of polynomial operations does a solid job of summarizing how a mathematician attacks adding, subtracting, and multiplying polynomials. With particular emphasis on combining like terms and when exponents do and do not...
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#### Simplifying Radical Fractions

For Teachers 9th - 12th Standards
Rationalizing denominators of radical fractions is one of those skills that pulls together understanding of many different concepts. By carefully scaffolding from easy to hard examples and explaining each example step-by-step, this video...
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#### Matrices

For Teachers 8th - 11th Standards
This accessible presentation presents the basics of matrices, from vocabulary through addition, subtraction, and scalar multiplication. With particular emphasis on positives and negatives, this method introduces learners to this useful...
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#### Determinants and Cramer’s Rule

For Teachers 10th - 12th Standards
Practicing determinant calculations and their applications is the focus of this detailed skills practice instructional activity. A summary of steps at the beginning of each section keeps young mathematicians on track, while clear and...
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#### Multiplicative Inverses of Matrices and Matrix Equations

For Teachers 10th - 12th Standards
Young mathematicians so often have a love-hate relationship with matrices and their inverses. They love the idea of a quick algorithmic way to solve systems of equations, but get stuck in the arithmetic precision required by the method....
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#### Matrix Solutions to Linear Systems

For Teachers 10th - 12th Standards
The emphasis is on the mechanics of matrix reduction in this problem set and presentation. Clear steps and a summary of method directions open the student notes, followed by six problems that walk learners through Gaussian and...
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#### Unit 8 Review Packet: Polar Coordinates, Polar Graphs, and Vectors

For Teachers 10th - 12th Standards
Tying together an introductory unit on polar coordinates, graphs, and vectors is often a daunting task. So many nuanced math skills develop through these lessons that making sure an assessment hits them is difficult, to say the least....
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#### The Dot Product

For Teachers 10th - 12th Standards
Vectors pop up in a ton of science and linear algebra applications, so becoming familiar with their basic manipulations and arithmetic is a must for pupils with an eye on higher math and science. Enter this skill-based lesson on finding...
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#### The Fundamental Theorem of Calculus

For Teachers 10th - 12th Standards
Practice in the mechanics of using substitution in integration is often hard to come by in enough quantity for learners to really wrap their heads around the nuances of the technique. This worksheet set with solution key and worked...