Curated OER
Probability Using M&M's
Students estimate and then count the number of each color of M&M's in their bag. In this mathematics lesson, students find the experimental probability of selecting each color from the bag. Students create pictographs and bar graphs...
Curated OER
Jelly Bean Math
Students estimate, measure, compute, and create patterns using jelly beans. In small groups, they solve various calculations, place jelly beans into groups, invent a new flavor, create a pattern, and complete a worksheet.
Curated OER
Directions, Directions
Third graders review cardinal directions, moving around the room so that they are standing in the part of the room that is nearest the north, south, east and west. They are asked what would you do if they are lost? Pupils work as a...
Curated OER
Combination Factory
Fourth graders use cut-outs of clothing to illustrate the numbers of combinations of articles of clothing they can create. Students create a tree-diagram and count the number of possibilities. They practice showing the information in...
Curated OER
Random Sampling
For this random sampling worksheet, learners compare data collected by a random sample to data collected by an actual count using pieces of paper with numbers written on them. They compare their data for the actual count to the random...
Curated OER
Amazing Transpiration
Learners observe a leaf and discuss the way that water is released from a leaf through its stomata. For this water cycle instructional activity, students calculate how much water leaves produce from a whole tree. ...
Pennsylvania Department of Education
Using the Coordinate Plane in Problem Solving
Fifth graders practice solving problems. In this fraction and decimal lesson, 5th graders recognize the relationship between fraction and decimals. Students estimate problem results and write expressions to use for problem...
Curated OER
Estimating Solutions to Word Problems
Fourth graders explore number sense by completing word problems in class. In this estimation instructional activity, 4th graders define terms such as sum, difference, estimate and best. Students complete estimating worksheets based on...
Curated OER
The Mole as a Large Number or an Exercise in Dimensional Analysis
Students complete an activity and make "provable estimates." In this dimensional analysis lesson students use dimensional analysis and complete an activity.
Curated OER
Multiplication Of Decimal Fractions
In this multiplication of decimal fractions worksheet, 8th graders use the whole number multiplication fact given to work out the answers to three word problems. Students, in addition, estimate the answers to ten problems without using a...
Curated OER
Checking Division By Estimation
In this checking division by estimation worksheet, students estimate the answers to twenty division equations. Students are instructed not to use a calculator and then discuss the twenty answers in class.
Curated OER
The Difference Bar 2
Students use Internet software, The Difference Bar, to work out the difference between two numbers by breaking numbers into parts. Students use mental strategies to work out the difference between any 2 two-digit numbers. Students...
Curated OER
Take Away Bar 2
Students use an Internet tool, The Take-Away Bar" to solve subtraction problems. They use mental strategies to subtract a two-digit number from a larger two-digit number. Students write and solve subtraction problems. They describe...
Curated OER
The Take-Awar Bar 1
Students use an Internet tool, "The Take-Away Bar" to solve subtraction problems by breaking them into parts. They write and solve comparison problems. Students make sensible estimates and check the reasonableness of answers. They use...
Illustrative Mathematics
Estimating Square Roots
No calculators! Assure your learners that they can find the square root of a large number. All they need are two known squares close by and a table. Come up with an additional practice and your number crunchers will have it mastered in...
Rational Number Project
Initial Fraction Ideas Lesson 22: Overview
Have young mathematicians subtracting fractions in no time with this manipulative-based math lesson. Using their sets of fraction circles, students explore a number of word problems involving the subtraction of fractions before working...
University of Colorado
Spacecraft Speed
Space shuttles traveled around Earth at a speed of 17,500 miles per hour, way faster than trains, planes, or automobiles travel! In the 13th installment of 22, groups graph different speeds to show how quickly spacecraft move through...
Illustrative Mathematics
Banana Bread
Show your future bakers how to choose the right baking pan by calculating the volume of a pan. The resource compares two pans, one with decimal edge lengths and is too small for the recipe and one that may work. Your number crunchers are...
Rational Number Project
Initial Fraction Ideas Lesson 18: Overview
Develop young mathematicians' ability to compare fractions with investigation into the number 1/2. After brainstorming a list of fractions equivalent to 1/2, children identify a pattern in the numerators and...
Illustrative Mathematics
Accuracy of Carbon 14 Dating II
The scientific issue of carbon-14 dating and exponential decay gets a statistics-based treatment in this problem. The class starts with a basic investigation of carbon content, but then branches out to questions of accuracy and...
Global Oneness Project
Witnessing Icebergs
Camille Seaman's photoessay, "Witnessing Icebergs" documents just a tip of the problem of climate change through images of icebergs in both the Arctic and Antarctic polar regions. After viewing the haunting images, viewers respond...
Curated OER
Pizzas And Things
First graders problem solve using the concepts of doubling and halving numbers as previews for finding multiples and working with fractions. They determine how to find half of a set of objects and work with sums up to 16. They work with...
Curated OER
Mound Math
Learners examine the many different burial mounds in Wisconsin. In groups, they use the internet to discover how long it took to build a specific mound. They must calculate the measurements of the mound to make a scale model.
Curated OER
Venn Diagrams & Word Problems
Students explore the concept of Venn Diagrams through word problems. In this Venn Diagram lesson, students solve word problems about groups of people using Venn Diagrams. Students use survey results about MySpace and Facebook in a Venn...
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