Exploratorium
Stripped Down Motor
Mostly for teacher's use, here are instructions for making a traditional electromagnetic motor and a detailed explanation of how it works.
Helping with Math
Using Integers
Given nine clues, investigators write down a positive or negative integer that represents the scenario. Then they compare pairs of integers and identify which is less or which is greater according to specified directions. This is a...
Curated OER
2 Digit Addition Without Regrouping
In this addition practice learning exercise, students solve 20 problems that require them to add 2-digit numbers to 2-digit numbers without regrouping.
Curated OER
2 Digit Addition Without Regrouping
In this 2-digit addition worksheet, students complete 20 problems, adding one 2-digit number to another. Answers are included on page 2. A reference web site is given for additional activities.
Curated OER
2 Digit Addition
In this 2 digit addition learning exercise, students add the 2 digit addition equations and use the regrouping method. Students solve 20 problems.
Curated OER
Subtraction of Two Digit Numbers No Regrouping Worksheet #9
In this subtraction learning exercise, learners solve 20 problems in which two digit numbers are subtracted. There is no regrouping on this page.
Curated OER
Dividing Decimals by Whole Numbers
In this division worksheet, students divide numbers with decimals by whole numbers. Students complete 4 division problems and review how to complete them.
Curated OER
Compare and Order Integers: Practice
In this integer instructional activity, students compare, and then order integers from least to greatest. Students also answer 2 test prep questions. Houghton Mifflin text is referenced.
Curated OER
Negative Exponents
Students solve negative exponential functions. In this algebra instructional activity, students define the properties for rewriting functions with negative and zero exponents. They use a robot to create a visual of what is happening to...
Curated OER
Human Coordinate Plane
Students sit in 25 desks arranged in a square array. They are a human coordinate plane and each of them is to receive a card with an ordered pair (x,y) on it. They who are not seated distribute the ordered pair cards to the appropriate...
Curated OER
Expressions With Multiplication and Division
In this expressions learning exercise, 4th graders evaluate 12 expressions for n = 7 and find the total number of hats when x = 12. Students write their answers on the lines provided.
Curated OER
Rainforest Data
In this geography worksheet, students use the climate data given to create a temperature line graph and rainfall bar graph for each of three locations given. Then they use an atlas to compare their graphs and draw conclusions about the...
Curated OER
Indirect Euclidean Proofs
In this indirect Euclidean proof worksheet, students write statements supporting the reasons for a given proof. This one-page worksheet contains ten problems.
Curated OER
Working With Angles
In this math worksheet, students collaborate with a "study buddy" or "coach" to learn whether an angle is acute, obtuse or right. Students follow the directions to go through the process of deciding what classification an angle has....
Curated OER
Systems of Equations
Students solve inequalities and systems of equations. In this algebra lesson, students use substitution and elimination as they solve algebraic systems. They use graphing and a table to support their solutions.
Curated OER
Similar Triangles
In this similar triangles worksheet, 10th graders solve and complete 10 different problems related to determining the sides of similar triangles. First, they write three equal ratios to show the corresponding sides that are proportional....
Curated OER
Earth's Atmosphere II
In this Earth's atmosphere worksheet, students use the chart shown to determine which information is given for each gas. Then they write the names of the layers of the Earth's atmosphere and describe which layer the temperature rises and...
Curated OER
Zeros and Ones
Pupils review counting, the number system and the decimal number system. They rotate through three stations, "How RAM Works, "Binary Numbers" and "Binary Letters." They complete three separate worksheets to check for complete...
Curated OER
Concurrence
In this concurrence worksheet, 10th graders solve 10 different problems related to determining various concurrences. First, they determine which type of triangle has two altitudes outside of it. Then, students determine the distance...
Curated OER
Helicopter Design Company
Learners test different designs of helicopters to determine what of the four designs will fall the slowest. In this helicopter lesson students complete an activity and fill out their worksheet.
Curated OER
Multiplying Integers
In this integer worksheet, students multiple integers, solving 11 problems. Answers and hints are available on-line; a reference web site for additional resources is given.
Curated OER
Who's In The Fact Family?
Students study related addition and subtraction facts. In this math lesson, students use related addition and subtraction to solve problems. Students use manipulatives to explore fact families.
Curated OER
New York State Testing: Mathematics Grade 3
In this New York state mathematics test, 3rd graders complete a total of 25 multiple choice questions related to 3rd grade math concepts. An answer key is included.
Curated OER
AP Calculus Exam
In this calculus worksheet, students review important rules of derivatives and integrations. They graph their functions using symmetry and coordinate pairs. There are 20 questions.