Curated OER
Sizing Up the Supersize Croc
Learners examine and compare traits of humans and crocodiles. In this crocodile lesson students use a ratio to estimate the height of a person and compare that to a crocodile.
Curated OER
Mental Maths
In this counting worksheet, students complete 22 fill in the blank problems where they are given a starting number and count by 1's, 2's, and 10's. Next. students answer 12 fill in the blank addition or subtraction problems where they...
Curated OER
Measuring Scavenger Hunt
Learners participate in a measuring scavenger hunt. Students choose items around the room to estimate and measure. Learners try measuring with their hands and compare with other students who did the same. Learners discuss why their...
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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...
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How Fast Is Fast?
Students make sensible estimates and check the reasonableness of the answers. Students write and solve problems involving decimal multiplication and division. Students perform calculations with time.
Curated OER
A Fishy Problem
Young scholars survey the problems involved in finding a solution to a practical problem using a mathematical process. Students make sensible estimates and check the reasonableness of their answers. Young scholars report the results of...
Curated OER
Planning a Trip
Students collect data, organize data, and compute differences of multi-digit numbers. In this data analysis lesson, students put together their best travel plan in small groups as outlined in the first lesson. Students study a map,...
Curated OER
Jelly Bean Math
Young scholars 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...
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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...
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Random Sampling
In this random sampling worksheet, students 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...
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Multiplication: Three-Digits by One-Digit
In this finding the products instructional activity, students review the steps and multiply three-digit numbers by one-digit numbers with regrouping. Students solve 12 problems.
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 lesson, 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 plan, 5th graders recognize the relationship between fraction and decimals. Students estimate problem results and write expressions to use for problem solving.
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 activity students use dimensional analysis and complete an activity.
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Estimating Solutions to Word Problems
Fourth graders explore number sense by completing word problems in class. In this estimation lesson, 4th graders define terms such as sum, difference, estimate and best. Students complete estimating worksheets based on the concept of...
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Multiplication Of Decimal Fractions
For 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...
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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.
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The Difference Bar 2
Pupils 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. Pupils describe...
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Take Away Bar 2
Young scholars 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...
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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...
Curated OER
Estimating
In this estimation worksheet, students estimate in word problems and graphs. Students round numbers to help them complete the estimation problems.
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...
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