Curated OER
The Area of Rectangles
Intended for beginners to geometry, an area of a rectangle problem has scholars draw out the units within the shape. They segment it into four rows and six columns to determine how many squares the rectangle is made of and, eventually,...
American Institute of Architects
Architecture: It's Elementary!—First Grade
Build an interest and appreciation for architecture in your young learners with this fun 10-lesson art unit. Engaging children in using their five senses, the class first observes the environment around them, paying special attention to...
National Security Agency
Backyard Building - Area and Perimeter
Turn young mathematicians into landscape architects with this four-lesson series on area and perimeter. Beginning with a basic introduction to calculating perimeter and area using non-standard units of measurement, this instructional...
Common Core Sheets
Determining Area with Partial Blocks
A more challenging set of worksheets, third graders are required to measure area by counting whole and partial unit squares. Students will realize that two partial blocks make up one whole block. Each shaded figure is on a square unit grid.
Common Core Sheets
Determining Area with Full Blocks
Third graders simply count the square units that make up each figure in order to find the area. Remind the class to count carefully in order to find the correct answer.
Curated OER
Standard Units of Measure
Learners explore linear measurement. They choose appropriate measuring tools, measure three classroom items, and record their results. A class discussion ensues in which everyone decides the best way to present their data.
Curated OER
How to find a unit fraction of a number
In this unit fraction worksheet, students read directions on how to find a unit fraction of a certain number. Students read how to find 1/5 of 35 in this example.
Curated OER
Unit Fractions of Numbers
In this unit/fractions activity, students find unit fractions of given numbers, then use a code grid to find a secret code word.
Curated OER
Place Value
There are 3 problems on this page, in which learners must compose the given number in both expanded and standard form. They are shown images of blocks representing hundreds, tens, and units, they write the number of hundreds, tens, and...
Curated OER
Finding the Area of Shapes
In this area of shapes unit, upper graders participate in hands-on problem solving activities to find the formulas for the area of a parallelogram, a triangle, and a trapezoid. They manipulate the geoboard to explore relationships among...
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
University of Wisconsin
Measuring Slope for Rain Gardens
The slope of the land is an important feature when considering the erosion that will occur. In this resource, which is part of a rain garden unit, learners calculate the slope of the proposed garden site. Even if you are not planning a...
Curated OER
Secret Formulas
Learners calculate the perimeter of rectangles and squares. They imagine trying to build a fence around a yard or trying to determine how much paint they need to paint a room. They also develop formulas and procedures for determining the...
Curated OER
Math Mammoth End of the Year Test - Grade 3
In this comprehensive diagnostic test worksheet, learners examine, study, calculate and solve 38 math problems. They work with a variety of basic math concepts and word problems.
Curated OER
Imperial Units
In this converting imperial units worksheet, students complete converting 12 metric units from imperial units to metric or vice versa.
Curated OER
Base Ten Blocks—Units and Rods (D)
In this counting units and rods worksheet, learners read a brief instructional guide and fill in the blanks in 6 statements pertaining to the units pictured in each of the 6 problems.
Curated OER
Base Ten Blocks—Units and Rods (C)
In this counting units and rods worksheet, students read a brief instructional guide and fill in the blanks in 6 statements pertaining to the units pictured in each of the 6 problems.
Curated OER
Base Ten Blocks—Units and Rods (E)
In this counting units and rods instructional activity, students read a brief instructional guide and fill in the blanks in 6 statements pertaining to the units pictured in each of the 6 problems.
Curated OER
Measuring with Body Units
In this measuring with body units worksheet, students read examples of unusual units of length based on the body, then use these measurements to record estimated and actual length measurements of 5 common objects.
Curated OER
Nonstandard Units
In this non-standard units worksheet, students circle the best unit to use to measure given items, drawing or writing to explain their work. Houghton Mifflin text is referenced.
Curated OER
Perimeter - calculate in units
In this perimeter instructional activity, students calculate the perimeter by the number of units each shape is showing. Students calculate the perimeter of 4 shapes.
Curated OER
Customary Units of Weight Homework 13.7
For this customary units of weight, students choose the unit that would be most appropriate to measure the weight of 11 objects- either ounces or pounds.
Curated OER
Customary Units of Weight Reteach 13.7
In this standard weights worksheet, students analyze 9 common objects and choose the most appropriate unit to weigh them-ounces or pounds.
Curated OER
Complete the Unit Conversions (Liquids)
In this liquid unit conversions practice worksheet, students solve 20 problems that require them to convert liquid units of measure. A conversion chart is included.
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