Interactive
Royal Society of Chemistry

Units of Volume

For Students 6th - 12th Standards
Did you know in the UK a quart is smaller than in America? This explains why a standard unit of measure is necessary for volume. Young scientists learn the similarities and differences between five different units used to measure volume....
Lesson Plan
Mathematics Assessment Project

Using Positive and Negative Numbers in Context

For Teachers 6th - 8th Standards
Measure the temperature of your math class with a temperature-based lesson on adding and subtracting rational numbers. The thermometer serves as a vertical number line for learners as they work together to solve a temperature change...
Lesson Plan
American Statistical Association

Happy Birthday to . . . Two?

For Teachers 6th - 8th Standards
How many people do you need in a room before two likely share the same birthday? Scholars consider this puzzle by analyzing a set of data. They ponder how to divide the data and determine the proper size of a group for this event to...
Worksheet
Curated OER

Crossword: Geometric Shapes

For Students 6th - 8th
Using a word bank, mathematicians fill out a crossword puzzle using 9 clues. Each clue describes a shape, using details such as the number of sides, angle degrees, and the shape category. For example: "A quadrilateral with four equal...
Worksheet
Curated OER

The Five Houses

For Students 7th - 12th
In this deductive reasoning instructional activity, students use clues to tell the nationality, beverage, snack, house color and pet of five people.
Worksheet
Curated OER

Brothers and Sisters

For Students 8th - 11th
In this deductive reasoning activity, students use 7 clues to determine the ages and relationships of 8 people. The page opens to the answer sheet.
Worksheet
Curated OER

Addition Square

For Students 7th - 8th
In this addition square puzzle, learners write numbers in spaces to create a true numerical expression. This one-page worksheet contains 6 problems. The worksheet and answers may be printed.
Worksheet
Curated OER

Some Puzzling Thoughts about Space Radiation

For Students 8th - 10th
In this space radiation worksheet, students solve 22 algebraic expressions for "x". They use their answers which correlate with a word in a word bank. They use these words to fill in the blanks of sentences about the effects of space...
Lesson Plan
Curated OER

Tangram Puzzles

For Teachers 8th - 12th
Young scholars explore the origin of tangram. In this algebra lesson plan, students form different shapes and figures using tangram. They solve for the area of different shapes without using any geometric formulas, but the idea of...
Lesson Plan
Curated OER

Election Poll, Variation 2

For Teachers 6th - 8th Standards
When a random sample isn't enough, your math class can compare the data from a physical simulation to decide if the probability is still likely. The lesson plan is part of a probability series that focuses on one question and different...
Interactive
Curated OER

Mode in Statistics

For Students 6th - 9th
Use this online math worksheet to have lerarners practice finding the mode in five different sets of data This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
Worksheet
Curated OER

Determine the Digit Represented by Each Letter

For Students 7th - 11th
In this puzzle learning exercise, students determine the digit represented by nine letters to make the addition correct. Two possible solutions are provided at the bottom of the page.
Worksheet
Curated OER

Slither Link

For Students 8th - 10th
In this math puzzle worksheet, students draw one continuous loop through the dots on a grid. Some areas contain a number indicating how many lines may pass by that cell.
Worksheet
Curated OER

Color Sudoku

For Students 7th - 8th
In this Sudoku worksheet, students solve a puzzle by filling in the numbers 1-9 so that each number appears only once in each row going across and down and in each block of 9 squares. The numbers 1-9 also appear once in each color.
Worksheet
Curated OER

Right Angles

For Students 8th - 10th
For this geometry worksheet, learners complete a puzzle with questions dealing with right angles. They must come up with the represented words given certain clues.
Worksheet
Curated OER

Trigonometry Puzzle

For Students 8th - 12th
In this trigonometry worksheet, students solve for the degree or the ratio in 48 questions using the 6 basic trigonometric functions. 
Interactive
Curated OER

Identify the Pattern to Find the Letter to Replace the ?

For Students 7th - 12th
In this problem solving puzzle, students identify the pattern to find the letter that should be placed in the box with the ?.  The solution is provided.
Lesson Plan
Curated OER

The Fibonacci Sequence

For Teachers 6th - 8th
Students investigate a numerical pattern and look for evidence of mathematical patterns in nature. They solve puzzles and work with a partner to predict sequential numbers in a series.
Activity
Lincoln Public Schools

Cereal Box Project

For Teachers 4th - 8th Standards
Challenge your class with this fun and engaging engineering design project. The goal, to create a brand new cereal complete with a list of ingredients, a name and logo, and a box to hold it in. Starting with a survey to determine the...
Study Guide
Penguin Books

Educator's Guide: The Da Vinci Code by Dan Brown

For Teachers 7th - Higher Ed Standards
Dan Brown's The Da Vinci Code is filled with secrets. Help readers find the clues, solve the riddles and puzzles, and unwrap the mysteries with a six-page guide that includes before, during, and after reading discussion questions and...
Interactive
Curated OER

Domino Puzzle

For Students 7th - 9th
In this middle school mathematics/Algebra I worksheet, students use logic to solve a puzzle in which they recover the outlines of the dominos which have been removed. Answers are provided. 
Worksheet
Curated OER

The Pascal Problem

For Students 7th - 12th
For this Pascal worksheet, students begin at the center of a rhombus to identify the number of ways the word "Pascal" may be found.  This one-page worksheet contains 1 puzzle.  The answer is provided at the bottom of the page.
Worksheet
Curated OER

Tour of the World

For Students 8th - 12th
For this tour of the world puzzle, students read a map and determine a travel itinerary based upon given criteria. They are required to visit 23 cities.  This one-page worksheet contains one puzzle.  The answer is provided...
Interactive
Curated OER

Arrange the Cards According to the Requirements

For Students 8th - 11th
In this cards puzzle, learners arrange cards in a four by four grid so that similar cards are not in the same row, diagonal, or column.  Two known possible solutions exist.

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