Worksheet
Alberta Learning

Area and Perimeter of Irregular Shapes

For Students 3rd - 6th Standards
Evaluate young mathematicians' understanding of area and perimeter with this series of three assessment tasks. Challenging students to not only calculate the area and perimeter of irregular shapes, but to explain in writing their...
Unit Plan
Arizona Department of Education

Area and Perimeter of Regular and Irregular Polygons

For Teachers 3rd - 6th Standards
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other...
eBook
CK-12 Foundation

CK-12 Middle School Math Concepts - Grade 6

For Students 6th Standards
Twelve chapters cover a multitude of math concepts found in the Common Core standards for sixth grade. Each title provides a brief explanation of what you will find inside the chapter—concepts from which you can click on and learn more...
Lesson Plan
Curated OER

Measurement and Estimation

For Teachers 2nd
Second graders explore estimation and measurement. In this estimation and measurement activity, 2nd graders use footsteps to measure distances around the classroom. Students sing songs to measure the number of beats from one area to the...
Assessment
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CCSS Math Activities

Smarter Balanced Sample Items: High School Math – Claim 4

For Teachers 9th - 12th Standards
What is the appropriate model? Sample problems show the extent of the Smarter Balanced assessments Claim 4, Modeling and Data Analysis. Items provide pupils the opportunity to use mathematical modeling to arrive at a reasonable answer....
Lesson Plan
Curated OER

Online video games plus curriculum-based math equals an engaging educational tool.

For Teachers 7th
Seventh graders use online math games to practice understanding the skill of estimation and order of operations. In this lesson, 7th graders use the internet to play online games to strengthen their understanding of these skills. 
Lesson Plan
Curated OER

Investigation - Peg Race

For Teachers Pre-K - 1st
Learners explore time by comparing the duration of an egg timer with how many pegs they can put in a pegboard. They experience one on one correspondence, as they place a peg in the whole. Students discover estimation of time and number...
Lesson Plan
Curated OER

Measure Mania

For Teachers 5th - 8th
Groups of young scholars rotate through five classroom stations to estimate, measure, and record volume, length, weight, mass, and area using both customary and metric measure. They evaluate their data to determine how close their...
Assessment
Los Angeles County Office of Education

Assessment for the California Mathematics Standards Grade 3

For Students 3rd Standards
Assess scholars' knowledge with a 22-page assessment that covers place value, patterns, probability, estimation, measurement, geometric figures; and their ability to add, subtract, multiply and divide proficiently. 
Lesson Plan
Curated OER

Measurement and Estimation

For Teachers 3rd
Third graders create a table in order to record estimations and measurements of objects. In this estimation and measurement lesson plan, 3rd graders estimate and measure object's lengths, area, weight, and capacity.
Printables
Virginia Department of Education

Middle School Mathematics Vocabulary Word Wall Cards

For Teachers 5th - 9th
Having a good working knowledge of math vocabulary is so important for learners as they progress through different levels of mathematical learning. Here is 125 pages worth of wonderfully constructed vocabulary and concept review cards....
Lesson Plan
Curated OER

Estimation Using Goldfish Crackers: Math

For Teachers 2nd
Second graders explore estimation and rounding concepts using goldfish crackers and a song! They solve problems by estimating and rounding numbers and pick numbers within reason to represent certain objects.
Lesson Plan
Curated OER

Puzzling Perimeters

For Teachers 3rd
Third graders use estimation, fractions and decimals to determine the perimeter of objects in the classroom. They are given a worksheet with a list of the items on it. The worksheet has columns beside each of the items for estimation and...
Lesson Plan
Curated OER

Radius, Diameter and Area

For Teachers 8th - 9th
Pupils identify the radius and diameter of a circle. In this geometry lesson, students calculate the volume and area of a cylinder and circle. They relate the circumference of a circle to Pi.
Worksheet
National Council of Teachers of Mathematics

Improving Archimedes' Method

For Students 9th - 12th
For this Archmides' method instructional activity, learners determine the area of a regular n-gon inscribed in a circle.  They use sine and cosine functions to solve problems.  This three-page instructional activity contains 4...
Lesson Plan
Curated OER

More! A Lesson on Comparing

For Teachers K
Students practice counting and comparing objects.  For this math lesson, students view a Count on It! episode. Students examine the value of what they are counting.  Students estimate number in groups of items.  Students...
Lesson Plan
Curated OER

Calculating Areas for the Caged Animals At Miami Metrozoo

For Teachers 7th
Seventh graders calculate the area of certain cages at the Miami Metrozoo after observing a teacher demonstration.
Unit Plan
Partnership for Educating Colorado Students

Mayan Mathematics and Architecture

For Teachers 4th - 8th Standards
Take young scholars on a trip through history with this unit on the mathematics and architecture of the Mayan civilization. Starting with a introduction to their base twenty number system and the symbols they used, this eight-lesson unit...
Lesson Plan
Curated OER

Add It Up In Number Ville! Adding 2-Digit Numbers With and Without Regrouping

For Teachers 2nd - 4th
Young scholars explore adding 2-digit numbers. In this math lesson, students identify 2-digit numbers and use base ten blocks to practice adding. Young scholars use addition to break a code.
Lesson Plan
Curated OER

Estimation and Pattern Discovery

For Teachers 6th - 8th
Students collect sunflower heads from their community garden. They estimate its seed count using different strategies. They graph their estimations on a graph and use calculators to find the actual total.
Lesson Plan
Curated OER

Models and Algorithms to Solve Multiplication Problems

For Teachers 7th - 9th
Students choose the correct strategy to solve multiplication and division. In this algorithm lesson, students use at least two strategies that use properties of operations and estimation. Students also recognize the relationship between...
Lesson Plan
Curated OER

How Close Is Our Estimate?

For Teachers 5th
Fifth graders estimate perimeter, area, and volume. They measure perimeter and area using nonstandard units of measurement. Students add and subtract non-standard units of measurement. They add mixed numbers and simplify the sum.
Lesson Plan
Curated OER

Jelly Belly: What a Wonderful "Bean"!

For Teachers K - 2nd
Students explore how jelly beans are produced. They discuss the origins of the jelly bean and view a video about how jelly beans are prepared, tested, shaped, finished, and shipped and estimate the amount of jelly beans in a jar and sort...
Lesson Plan
Curated OER

Counting Chart

For Teachers 1st - 2nd Standards
Elementary learners discover counting through a counting chart. For this math lesson, students identify numbers 1-100. They then point or recite their counting numbers.