Worksheet
National Council of Teachers of Mathematics

Improving Archimedes' Method

For Students 9th - 12th
For this Archmides' method instructional activity, students determine the area of a regular n-gon inscribed in a circle.  They use sine and cosine functions to solve problems.  This three-page instructional activity contains 4...
Worksheet
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Solving Equations Containing Algebraic Fractions

For Students 8th - 9th
In this algebraic fractions worksheet, students solve and complete 20 different problems that include solving equations that contain algebraic fractions. First, they determine the common denominator in each and use the product of all the...
Lesson Plan
Curated OER

Solve Right Triangle

For Teachers 9th - 11th
In this trigonometric applications worksheet, students solve for the missing side of a right triangle using a trigonometric ratio. There are 46 questions, 10 of which are word problems.
Worksheet
Curated OER

Number Problems

For Students 4th - 5th
In this algebra worksheet, students solve eighteen number problems by using algebraic methods. Each of the word problem gives a riddle about finding a number increased or decreased by a certain number.
Worksheet
Curated OER

Student - Designed Density Experiment and Poster

For Students 6th - 8th
In this student-designed experiment worksheet, learners decide on an experimental problem to solve. Students use the scientific method to perform an experiment and record the data. Learners calculate the density of liquid used in the...
Worksheet
Curated OER

Evaluating Expressions

For Students 9th
In this evaluating expressions worksheet, 9th graders solve 10 different problems that include evaluating various forms of expressions. First, they evaluate the equations for the given values of x in each of the 4 boxes. Then, students...
Worksheet
Curated OER

Multiplying Binomials

For Students 9th - 12th
In this math worksheet, students practice the techniques associated with multiplying binomials. This worksheet has 18 problems for the students to solve.
Lesson Plan
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The Journey of a Banana

For Teachers 1st - 8th
To investigate the price of bananas in order to evaluate basic counting and number sense skills, your mathematicians focus upon multiplication and problem solving that incorporates social studies in the form of building awareness about...
Lesson Plan
Curated OER

Social Change

For Teachers 4th - 6th
Students study a social issue involving gorillas, and work in groups to develop strategies to increase awareness of and problem solve a solution for the issue. They collect data using handheld computers and write a report.
Assessment
Mathematics Assessment Project

A Golden Crown?

For Students 7th - 8th Standards
In this assessment task, learners determine whether a crown with given information is composed of pure gold. The task expects algebraic and numerical solution methods, so unlike Archimedes, no bathtub is necessary.
Lesson Plan
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Quadrilateral Clues

For Teachers 4th - 5th Standards
Fourth and fifth graders work in pairs  explore quadrilaterals. In this problem-solving lesson, learners participate in hands-on activities that require them to identify, describe, compare, and classify quadrilaterals. This is meant...
Lesson Plan
Curated OER

Math is in the Cards!

For Teachers 3rd - 5th
Is the rainy day schedule disrupting your class? Here is a great way to practice basic addition, subtraction, and multiplication skills while building automaticity and problem solving. This activity provides the rules to three different...
Lesson Plan
Curated OER

The Elimination Method

For Teachers 10th
Tenth graders investigate the Elimination Method in the solving of equations. They solve the equation using this method in examples with the teacher and then transfer the new knowledge to independent practice.
Lesson Plan
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Redox Equations and the Half-Reaction Method

For Teachers 9th - 12th
Students review half-reactions and practice balancing redox equations in order to help them solve problems in chemistry.
Lesson Plan
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Introduction To Solving Equations

For Teachers 6th - 7th
Use manipulatives (film cans and balance scales) to visualize and solve equivalent equations with your math class. After a lecture/demo, they utilize handouts and solve various equations using the methods learned.
Lesson Plan
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The Visible Spectroscopy Expert Witness Problem

For Teachers 9th - Higher Ed
In a simulated crime science investigation, chemistry or physics sleuths use spectroscopy to analyze solutions. The lesson gives learners practice making salicylate solutions, using spectrophotometers, calculating dilution amounts,...
Interactive
Scholastic

Study Jams! Add & Subtract Measurements

For Students 4th - 6th
How much leopard print fabric will Zoe need to upholster a sofa for her jam studio? This problem is the example used to teach how to add and subtract measurement-related values.
Lesson Plan
Curated OER

Rusting and the Scientific Method

For Teachers 8th - 9th
Students observe the oil can scene with the tin man from a clip from "The Wizard of Oz" and answer the question, "What can we learn about rust from this scene?". They take 2 tubes and 2 nails, adding 1 salt packet to 2 ml of distilled...
Lesson Plan
Curated OER

Three Squirrels and a Pile of Nuts

For Teachers 6th - 8th
Pupils solve story problems using a spreadsheet in combination with various problem-solving strategies. Working in teams of three, students create attempt to solve a story problem using three different methods; using manipulative, using...
Lesson Plan
Curated OER

Teaching in the Swithched On Classroom

For Teachers 6th - 12th
Students engage in activities to help them develop computer skills and other various problem solving methods. They also work collaboratively, and apply technology in an ethical way.
Lesson Plan
Curated OER

Exploring the Scientific Method: Separation of a Complex Mixture

For Teachers 4th - 6th
Students work in teams to use the scientific method to separate complex mixtures into pure components.
Lesson Plan
Curated OER

Problem Solving

For Teachers 6th
Sixth graders solve problems involving money at learning situations. They solve the problems and determine if there is a solution, one solution, or many solutions. They write problems that have more than one solution and incorporate...
Lesson Plan
Curated OER

Scientific Method for Middle Schools

For Teachers 5th - 8th
Students use the scientific method to solve a teacher scenario. They bring in M&M's. Students are given a copy of the scientific method. They first come up with a problem. Students are told that they are going to conduct an...
Lesson Plan
Curated OER

When Life Serves You Lemons!

For Teachers 4th - 5th
Students build their own lemonade stand. In this problem solving lesson, students measure the materials needed to build a stand and make lemonade. They find the cost of producing the lemonade and the profit they will make. 

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