Worksheet
Curated OER

Estimate the Proper Fractions

For Students 3rd - 5th
In this estimation worksheet, students estimate 7 given fractions to the nearest whole number. Answers are included on page 2.
Worksheet
Curated OER

Estimate and Check

For Students 2nd - 3rd
In this estimation worksheet, students estimate numbers of items shown in pictures, then circle given groups of items, count and write totals. 
Worksheet
Curated OER

Estimate to the Nearest Ten

For Students 2nd - 4th
For this estimation worksheet, learners estimate a set of 10 numbers to the nearest 10. A reference website for additional resources is given.
Lesson Plan
1
1
EngageNY

Definition and Properties of Volume

For Teachers 9th - 10th Standards
Lead a discussion on the similarities between the properties of area and the properties of volume. Using upper and lower approximations, pupils arrive at the formula for the volume of a general cylinder. 
Lesson Plan
Illustrative Mathematics

Calculating and Rounding Numbers

For Teachers 7th - 9th Standards
Mathematicians need to know that not all numbers are rational. We approximate irrational number with rational numbers. That is why a calculator may be misleading. This task give learners an opportunity to see how rounding a number and...
Lesson Plan
EngageNY

How Do 3D Printers Work?

For Teachers 9th - 10th Standards
If we stack up all the cross sections of a figure, does it create the figure? Pupils make the connection between the complete set of cross sections and the solid. They then view videos in order to see how 3D printers use Cavalerie's...
Lesson Plan
EngageNY

Bacteria and Exponential Growth

For Teachers 9th - 12th Standards
It's scary how fast bacteria can grow — exponentially. Class members solve exponential equations, including those modeling bacteria and population growth. Lesson emphasizes numerical approaches rather than graphical or algebraic.
Lesson Plan
Rational Number Project

Initial Fraction Ideas Lesson 18: Overview

For Teachers 3rd - 6th Standards
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...
Lesson Plan
Willow Tree

Perimeter of Common Geometric Figures

For Students 8th - 11th Standards
Help learners understand that perimeter and circumference are one in the same. Learners apply their skills to determine the perimeter/circumference of triangles, rectangles, and circles. They then use the same strategy to find the...
Lesson Plan
Willow Tree

Approximating a Line of Best Fit

For Students 9th - 12th Standards
You may be able to see patterns visually, but mathematics quantifies them. Here learners find correlation in scatterplots and write equations to represent that relationship. They fit a line to the data, find two points on the line, and...
Assessment
1
1
California Education Partners

Animals of Rhomaar

For Students 7th Standards
Investigate the growth rates of alien animals. Pupils study fictional animals from another planet to determine how much they grow per year. The investigators plot the growth of their animals over a period of time and then compare...
Assessment
1
1
California Education Partners

T Shirts

For Students 7th Standards
Which deal is best? Learners determine which of two companies has the best deal for a particular number of shirts. They begin by creating a table and equations containing each company's pricing structure....
Activity
Centre for Innovation in Mathematics Teaching

Ten Data Analysis Activities

For Students 9th - 12th
This thirteen page data analysis worksheet contains a number of interesting problems regarding statistics. The activities cover the concepts of average measurements, standard deviation, box and whisker plots, quartiles, frequency...
Activity
2
2
Illustrative Mathematics

Calculating the square root of 2

For Teachers 7th - 10th Standards
Does a calculator give you the exact value of the square root of 2? Here, learners must decide if 1.414236 is equal to the square root of 2. They must also explain why the square root of 2 could never be equal to a terminating decimal....
Worksheet
Curated OER

Simplifying Radical Expressions

For Students 8th - 11th Standards
In a radical expressions worksheet, learners use the Product and Quotient Properties of Square Roots to simplify a variety of square roots. The worksheet begins with simple radicals, progresses to radicals involving fractions and...
Activity
Illustrative Mathematics

Flu on Campus

For Teachers 9th - 12th Standards
An outbreak of the swine flu on a school campus has caused an increase in the number of boxes of tissues sold by the school store. In a real-world-modeling activity, pupils use composition of functions to determine how the number of...
Assessment
Achieve

Corn and Oats

For Students 6th - 10th Standards
How much land does a parcel hold? How much fertilizer does it take for a field of corn? Pupils answer these questions and more as they apply ratio reasoning and unit analysis. 
Lesson Plan
02 x 02 Worksheets

Proportions

For Teachers 7th
Cut-and-paste a great activity into your lesson plans. Scholars analyze real-world problems involving proportions. To change things up a bit they cut-and-paste quantities to create a proportion on their way to solving the problems.
Interactive
Curated OER

Estimating Before Multiplying

For Students 4th - 6th
In this estimating before multiplying worksheet, students interactively answer 10 multiple choice questions about estimating, then click to check their answers.
Worksheet
Curated OER

Estimating Numbers on a Number Line From 0 to 10

For Students 1st - 2nd
In this estimating numbers on a number line worksheet, students estimate the 8 whole numbers that the arrows are pointing to on 4 number lines.
Lesson Plan
Curated OER

Subtracting Two- and Three-Digit Numbers

For Teachers 5th - 7th
In this subtracting two- and three-digit numbers worksheet, students, with a partner, problem solve and calculate the answers to fourteen subtraction equations.
Worksheet
Curated OER

What's your Change?

For Students 6th
In this money problems worksheet, 6th graders solve 20 different problems that include money and change. First, they determine the cost of each item illustrated in the box. Then, students determine how much money they have to spend for...
Worksheet
Curated OER

Estimate and Measure

For Students 1st - 3rd
In this number sense worksheet, students examine the 4 pictured items and estimate how long each of them is in centimeters. Students use rulers to check their work.
Worksheet
Curated OER

Estimating Practice

For Students 1st - 2nd
In this number sense worksheet, students examine the picture and estimate the number of ants in the picture.

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