Curated OER
Fourth of July Addition and Subtraction
What is Thomas Jefferson signing? Focus on American history with this cross-curricular math puzzle. Learners utilize addition and subtraction skills to solve the mystery of the Fourth of July. All numbers are 3-digit, and there are no...
Curated OER
Split a Factor
Take the mystery out of multiplicaton with worksheets like this one. Learners find a mental math strategy for more difficult equations by splitting a factor, multiplying out the terms, and adding the products. An example explains this...
101 Questions
Coke Jacuzzi System of 3
Can you determine the exact volume of a bottle based on the relative volume of other bottles? A series of four videos shows someone pouring fluid into bottles. Scholars must set up a system of equations to determine how much each bottle...
Illustrative Mathematics
What Shape Am I?
Sharpen your pencil and grab a ruler, it's time to draw some quadrilaterals! Given the definition of a parallelogram, rectangle, and rhombus, learners draw examples and nonexamples of each figure. The three definitions are...
Education Development Center
Integer Combinations—Postage Stamps Problem (MS Version)
Number patterns can seem mysterious. Help your learners unravel these mysteries as they complete an intriguing task. Through examination, collaborative groups determine that they are able to produce all integers above a certain...
Baylor College
What Makes Water Special?
Get close up and personal with a drop of water to discover how the polarity of its molecules affect its behavior. Elementary hydrologists split and combine water droplets, and also compare them to drops of oil. Much neater than placing a...
Baylor College
What Is the Water Cycle?
Small groups place sand and ice in a covered box, place the box in the sunlight, then observe as evaporation, condensation, and precipitation occur. These models serve as miniature water cycles and demonstrations of the three phases of...
Baylor College
How Can We Find Out What Is in Water?
Using paper chromatography, water watchers discover that several substances might be dissolved even though they aren't visible. In this case, you will prepare a mixture of three different food colorings for them to experiment with. A...
Curated OER
Mystery Jars: Make Your Own
Students explore the concept of estimation. In this estimation lesson plan, students create their own estimation jars and fill them with objects of their choice. Students then count the exact number of objects and trade jars to...
Curated OER
The Missing Monkey Mystery
Second graders explore number values by completing number sentences. For this math functions lesson, 2nd graders identify whole numbers by using a visual aide and practice filling in the blank in number sentences. Students utilize their...
Curated OER
Methods of Mystery
Students utilize the scientific method to discover the age of an item. In this historical dating lesson plan, students compare and contrast a 400 year old cabinet to one made within a few years by using carbon dating....
Curated OER
Box Mystery
In this math reasoning worksheet, students read 4 clues that describe the capacity of 4 boxes. Students use reasoning to number the boxes from 1 to 4 as the clues are analyzed.
Curated OER
Math: Mr. E Graphs
Second graders role-play as members of the "Math Graph Detective Academy" and assist in solving a mysteries. Once they have watched a "top secret" video, they sort objects according to traits into five categories. Throughout five...
Granite School District
Types of Ratios
Ratios can be written in a number of ways including whole to part, part to part, part to whole. For each problem, young mathematicians write the given ratio and classify it based on those categories.
Curated OER
Number Manipulation
In this number manipulation worksheet, students solve 4 different types of problems that include number manipulation. First, they use division, multiplication, addition, or subtraction to make each set of numbers into equations which...
Curated OER
Hands-On Investigation!
Learners read, analyze, and solve a mystery using problem-solving skills. They explore the History Detective website, discuss the difference between clues and red herrings, complete a dot-to-dot sheet, take notes in a detective...
Curated OER
Giant Mystery
Third graders determine the relationship between hand size and body size using centimeters as the unit of measure, They use the relationship to find the size of a hypothetical giant. They graph the measurements using a spreadsheet program.
Curated OER
Mystery Numbers
In this mystery numbers worksheet, students solve 4 different word problems that include guessing numbers described. First, they determine a two digit number that has the sum equal to 6. Then, students determine a two digit number that...
Curated OER
Money Riddle
In this addition worksheet, students solve 11 problems in which a mystery number is added to another two digit number with the sum always being 100. After completing the problems a mystery message will be revealed.
Curated OER
Missing Measures: Complimentary and Supplementary Angles
A missing measure mystery! Right angles and straight angles are divided in two, with the measure of one side provided. Angle analyzers compute the value of the missing complimentary or supplementary angle. There are eight problems for...
Didax
Pi Day #1a – Discovering Pi
Unravel the mystery behind the infamous number pi. Scholars complete a series of activities that explores where pi comes from, its digits and estimation strategies. Pupils should be ready to measure, calculate, and look for patterns to...
Curated OER
Eleven
Students read an excerpt from the book Eleven by Patricia Reilly Giff. They answer provided questions for group discussion along themes such as family, belonging, and anger. Assignment suggestions included for math, social studies,...
Curated OER
Think of a Number
In this math learning exercise, students engage in a mental math activity. Student think a number and follow several computations with that number and always come up with the answer 9. Students discuss why this happens.
Curated OER
THOAN -Think Of A Number
In this puzzle worksheet, students think of a number and follow twelve computations to do with that number. The answer to the puzzle is always one. Students make their own set of steps.