Interactive
CK-12 Foundation

Estimation to Check Decimal Multiplication: Watering a Garden

For Students 6th Standards
Mathematicians solve six multiple-choice and true or false questions using their knowledge of estimation and multiplying decimals. The interactive provides a garden-themed tool that creates a visual aid of three watering cans to assist...
Assessment
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California Education Partners

Summer Olympics

For Students 5th Standards
Quickly get to the decimal point. The last assessment in a nine-part series requires scholars to work with decimals. Pupils compare the race times of several athletes and calculate how much they have improved over time. During the second...
Lesson Plan
Curated OER

Standard Units of Measure

For Teachers 1st - 3rd
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.
Activity
Census at School

Just How Old Are You?

For Teachers Pre-K - 6th
Do you know how old you are in seconds, minutes, days, weeks, or months? This intriguing question is presented as a way for learners to estimate in units of time. They'll build a better sense of what each increment of time is as they...
Lesson Plan
Curated OER

Estimate, Solve, and Check

For Teachers 1st - 2nd
Young scholars estimate, solve, and check a series of addition and subtraction number and word problems. They write their estimates on a recording sheet, compute and write the answer in the next column, and check their answer with a...
Lesson Plan
Curated OER

Scale Drawing Lesson Plan

For Teachers 5th - 7th
Students calculate actual building measurements from a village map using concepts of ratios and scale in this ten instructional activity mini-unit. They practice measuring angles, multiplying decimals, estimating height and length, and...
Worksheet
Curated OER

Solving Equations

For Students 9th
In this solving equations worksheet, 9th graders solve 24 different problems. First, they find the zeros of each function. Then, students solve each equation by factoring. They also solve each equation by completing the square and...
Lesson Plan
Curated OER

A Sum of Functions

For Teachers 9th - 12th Standards
Collaborative learners will see the geometric addition of functions by graphing the sum of two graphed curves on the same coordinate plane. This task then naturally flows into giving learners the algebraic representation of the curves...
Lesson Plan
SeaWorld

How Big is a Blue?

For Teachers Pre-K - 3rd
Whales are all big, but some are larger than others! Kids will love sorting the 10 whale species by size at their desk (whale cut-outs provided). Next, use a whale rope to visualize how long each of these whales actually is. A large...
Worksheet
Curated OER

Circles and Cylinders

For Students 10th
In this circles and cylinders worksheet, 10th graders solve and complete 22 various types of problems. First, they collect data for a radius and circumference for several different circles and calculate the quantity. Then, students find...
Lesson Plan
Curated OER

Estimation and Measurement

For Teachers 1st - 3rd
Students explore measurement and estimation with non-standard units. In this measurement lesson plan, students discuss items that could be used to measure; they use tooth picks to measure specific items around the classroom, both...
Worksheet
Curated OER

Integration

For Students 12th
In this calculus worksheet, 12th graders use integration to find the area under a graph. They use integration to solve real world problems. There are 4 different sections with their own problems.
Lesson Plan
Biology Corner

Random Sampling

For Teachers 7th - 12th Standards
Simulate a random sampling of data by tearing 20 sheets of paper into slips and place a number on 10 and a letter on 10. They place the slips in two separate containers and randomly draw a number and a letter. They record their...
Lesson Plan
Curated OER

Living Room Redecoration

For Teachers 4th
Fourth graders use math in a living room redecoration lesson. In this geometry lesson, 4th graders get the dimensions of a living room and need to find the amount and cost of paint and flooring. They read different scenarios and decide...
Lesson Plan
Curated OER

Pumpkins By the Pound

For Teachers 1st - 3rd Standards
Use pumpkins of various sizes to experiment with weight and perimeter. First the class lifts the pumpkins one by one, estimating each pumpkin's weight. They arrange the pumpkins from lightest to heaviest, and then string weigh each one...
Worksheet
Curated OER

Multiplying by a Multiple of Ten

For Students 4th
In this multiplication worksheet, 4th graders multiply 8 multiplication math problems by different multiples of 10. Students answer 3 word problems on the lines provided.
Worksheet
Curated OER

Appliance Energy Use and Cost

For Students 7th - 10th
In this energy usage worksheet, students use a chart comparing the average monthly kilowatt-hour use of different household appliances to complete 4 short answer questions.
Lesson Plan
Curated OER

Estimation and Significant Figures

For Teachers 9th - 12th
Students investigate the importance of significant figures through measuring and estimating. For this estimation and significant figures lesson plan, students measure pieces of paper and round their figures to the nearest marking on the...
Lesson Plan
Curated OER

Counting Animal Populations

For Teachers 5th - 8th
Young scholars learn how to count animal populations by the Mark and Recapture method. For this counting animal populations lesson plan, students begin by predicting amounts of different candies in a jar. Young scholars then simulate...
Lesson Plan
Curated OER

The Robot Ranger

For Teachers 5th - 6th
Students participate in an experiment to understand how robotic systems can estimate distances.  In this robotic ranger activity, students measure the the time it takes for and object to move back and forth.  Students will use...
Lesson Plan
Curated OER

Measurement

For Teachers 9th - 11th
Young scholars measure angles, perimeter, area and volume. In this geometry lesson, students define different ways to measure and solve for the perimeter, area and volume of geometric shapes. They analyze and process information to help...
Lesson Plan
Illustrative Mathematics

High School Graduation

For Teachers 7th - 9th Standards
An exercise in finding the approximate time that a name would be called at a graduation. Estimating time may be difficult for some of the class, so this resource would not be a good choice for learning this standard. It does end with a...
Lesson Plan
Curated OER

Estimating the Live Mass of Dinosaurs

For Teachers 9th - 12th
Students calculate the volume of scale model dinosaurs using a water displacement method. They use formulas to calculate the live mass each of the species of dinosaur. Then they complete and discuss a series of questions.
Lesson Plan
Curated OER

Estimating the Live Mass of Dinosaurs

For Teachers 9th - 12th
Learners estimate the live mass of dinosaurs. Using dinosaur and modern animal models, students use simple displacement methods to calculate the volume of the models. They calculate the masses of each model. Learners compare the...

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