Curated OER
Triangle Area by OnlineMathLearning.com
In this online math worksheet, students practice finding the area of triangles, given their outside dimensions. When complete, students submit their answers and get instant feedback regarding their accuracy.
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Water Quality and Environmental Pollution
Learners use litmus paper to begin to discover the qualities of acids and bases. They learn about pH by testing clear liquids for acidity with purple cabbage juice as an indicator. The video Streamkeeper, with Bill Nye, and other video...
Alabama Learning Exchange
Miss Integer Finds Her Properties in Order
Access prior knowledge to practice concepts like order of operations and exponents. Your class can play this game as a daily review or as a warm-up activity when needed. They work in groups of four to complete and correct review problems.
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Computer Titration Lab Simulation
Students perform a lab simulation for a titration of monoprotic and diprotic acids. In this titration simulation lesson plan, students use a computer program to neutralize an acid with a base and compute the unknown concentration of the...
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Acid-Base Titration
Learners determine the concentration of an acid using titration. In this acid-base titration lesson plan, students determine the concentration of an unknown hydrochloric acid solution using phenolphthalein as an indicator and a known...
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Exponential Expressions - Perfect Squares, Square Roots
Color tiles are used to model perfect squares. Alone or in pairs, middle schoolers will find patterns. Afterward, the relationship between perfect squares and roots will be discussed as a whole class.
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Introduction to Exponents
Problem solve using exponents. Pupils read One Grain of Rice: A Mathematical Folktale and write powers to represent amounts from the story.They compare actual solutions to their predictions and play a game to practice using exponents.
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Sour and Bitter: Acids and Bases
Tenth graders distinguish between acids and bases. In this pH lesson, 10th graders view a PowerPoint and discuss the characteristics of an acid and a base. They investigate natural substances to determine the pH level of each.
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Do We Need to Wear a Rainhat? Acid Rain: Causes, Effects, and Possible Solutions
Acid rain, and how it affects the environment, is the focus of this Earth science lesson plan. During the study, learners evaluate measures to reduce acid rain, and design an investigation to demonstrate the conection between a...
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Acid (and Base) Rainbows
Learners are introduced to the differences between acids and bases and how to use indicators, such as pH paper and red cabbage juice, to distinguish between them. They make predictions that can be answered through scientific...
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Acids and Alkalis
This PowerPoint progresses slide-by-slide through all the facts you would want to deliver about acids, alkalis, salts, and the related lab tests. Each slide has one or two facts about a physical or chemical property or behavior. The...
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Version 001 – Exam 1 – David Laude (53015) 1
A 30-question multiple choice chemistry test challenges takers. Topics touched upon include thermochemistry, equilibrium, behavior of gases, and pH. Problem solving is required in order to answer most of the questions. Other questions...
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Unit 7 Acid and Base
A series of 25 multiple choice questions is presented to chemistry learners to review properties of acids and bases. A page of notes precedes the questions and contains information about the Arrhenius and Bronsted-Lowry definitions,...
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Learning About Triangles
Upper graders label four triangles and fill in the labels correctly. They draw three original triangles and answer the questions about them.
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Calculating pH and pOH
In this acids and bases worksheet, learners calculate the concentration of OH- and the pH of solutions. This worksheet has 10 problems to solve.
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Bicycles & Tricycles
In this bicycles and tricycles worksheet, learners solve and complete 8 different problems that include counting the number of bicycles and tricycles in each store. First, they complete the table for the number of wheels on the bikes in...
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Exponent Basics
For this exponent worksheet, students examine multiplication problems and rewrite them using exponents. They solve problems with exponents. This one-page worksheet contains 21 problems.
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Triangle Problems-Base, Height, and Area
In this geometry worksheet, 10th graders find the base, height, or area of a triangle. The one page interactive worksheet contains ten questions. Answers and hints are included.
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Area of Paralelograms
In this online interactive worksheet, students determine the missing length of a geometric shape and then check their answers.
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Tests for Parallelograms Multiple Choice
In this parallelogram worksheet, students examine the lengths of the sides of a quadrilateral. They identify parallelograms. This one-page worksheet contains 13 multiple-choice problems. This online worksheet provides immediate feedback.
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Laws of Exponents
For this laws of exponents worksheet, students solve 12 exponent problems. Students use exponent rules to simplify exponential expressions.
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Area of Triangles 2
In this area of triangles worksheet, students solve 18 area of triangles problems. Students find the area of various types of triangles given a graph of the triangle.
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Binary Math - Adding
In this binary math worksheet, students find the sum of binary numbers. They convert numbers from base two to base ten. This one-page worksheet contains 10 multi-step problems.
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Exponents Worksheet: 2 of 2
Not the most attractive worksheet, but useful nonetheless. A chart is displayed for mathematicians to fill in the power, base number, exponent, the repeated multiplication problem, and the total value. They complete this activity for...